§ 8329-01 Storage of Combustible Fibers in Pre-Existing Facilities.

(a) Scope. This section consolidates the New York City Fire Prevention Code and former Fire Department rules in effect on June 30, 2008, that are applicable to the design and installation of hazardous material installations in pre-existing facilities.

(b) Definitions. The following terms shall, for purposes of this section and as used elsewhere in 3 RCNY Chapter 83, have the meanings shown herein:

Retail drug store. A store or building used for the compounding and dispensing, usually in the form of physicians' prescriptions, or for the selling of small quantities of medicinal preparations, proprietary articles, drugs, chemicals, oils, volatile solvents and other substances which, alone or in combination with any other article or substance, are of a highly combustible, flammable or explosive nature. (Fire Prevention Code, former Administrative Code § 27-4002(35))

Technical establishment. A building or place where explosive, flammable or highly combustible substances are produced, used or stored for use, or where chemicals or other materials entering into the production of such substances are stored or used, excepting those establishments which are specifically treated under other classifications in Subchapters 1 through 27 of this chapter. (Fire Prevention Code, former Administrative Code § 27-4002(39))

Tenement house. A class A multiple dwelling as defined in subdivision four of section four of the multiple dwelling law. (Fire Prevention Code, former Administrative Code § 27-4002(40))

(c) General Provisions. Pre-existing facilities with hazardous material installations the design and installation of which would not be allowed or approved under the Fire Code, but which, pursuant to FC 102.3 and 3 RCNY § 102-01, may be continued with respect to such hazardous material installations under the applicable laws, rules and regulations in effect prior to the Fire Code, and shall continue to comply with the provisions of such laws, rules and regulations, including former Administrative Code §§ 27-4234, 27-4236, 27-4237, 27-4238, 27-4240, 27-4241, 27-4242 and 27-4246, and former Fire Department Rules §§ 10-01, 15-05 and 34-01, as applicable, until such time as such facilities may be required to comply with the Fire Code and the rules with respect to their design and installation.

(d) Technical Establishments.

(1) Former Administrative Code § 27-4234.

§ 27-4234 Restrictions. It shall be unlawful to store for use, or to use in any technical establishment any liquid acetylene, acetylide of copper or other metallic acetylide; fulminate of mercury, or any other fulminate or fulminating compound; nitroglycerine; chloride of nitrogen; amide or amine; blasting powder; smokeless powder; or gunpowder in any form; or any volatile product of petroleum (except rhigoline) having a boiling point lower than sixty degrees Fahrenheit.

(e) Wholesale Drug Stores and Drug and Chemical Supply Houses.

(1) Former Administrative Code § 27-4237.

§ 27-4237 Restrictions. No permit shall be issued for a wholesale drug store or drug and chemical supply house in any building:

1. Which is situated within fifty feet of the nearest wall of any building which is occupied as a school, hospital, theatre, or other place of public amusement or assembly;

2. Which is not equipped with a fire extinguishing system approved by the commissioner;

3. Where the building does not comply with the requirement of the building code regulating high hazard occupancies for buildings erected after the sixth day of December, nineteen hundred sixty-eight; or where a building or building section erected prior thereto is not fully equipped with an approved automatic sprinkler system.

(2) Former Administrative Code § 27-4238.

§ 27-4238 Laboratory.

a. Construction. The operation of compounding medicinal preparations, proprietary articles and similar materials, or analyzing or testing drugs, chemicals, medicinal preparations, proprietary articles and similar materials, when explosive or flammable substances are required, shall be conducted only in a room or part of the premises designed and constructed in accordance with all applicable provisions of the building code.

. . . . . . . . . .

(3) Former Administrative Code § 27-4240.

§ 27-4240 Prohibited materials. It shall be unlawful to manufacture or store in a wholesale drug store or drug and chemical supply house any of the following substances:

1. Acetylide of copper;

2. Amide or amine explosive;

3. Chloride of nitrogen;

4. Colored fire in any form;

5. Cymogene or any volatile product of petroleum (except rhigoline) or coal tar having a boiling point lower than sixty degrees Fahrenheit;

6. Flashlight powders;

7. Fulminate or any fulminating compound;

8. Guncotton;

9. Gunpowder in any form;

10. Liquid acetylene;

11. Nitro-glycerine, except in official U. S. pharmacopoeia solution, or in the form of pills, tablets, or granules containing not more than one-fiftieth of a grain each;

12. Picrates;

13. Potassium chlorate in admixture with organic substances or with phosphorus or sulphur; provided that this restriction shall not apply to the manufacture or storage of tablets of chlorate of potash intended for use solely for medicinal purposes;

14. Rubber shoddy.

(4) Former Administrative Code § 27-4241.

§ 27-4241 Quantities of supplies allowed. No permit shall be issued for the storage in a wholesale drug store or drug and chemical supply house of any of the following substances in quantities greater than those set forth in the following schedule:

1. Explosives.
Amyl nitrate in bottles	25 pounds
Amyl nitrate in pearls	100 gross
Carbon bisulphide	50 pounds
Collodions	100 pounds in all
Gases, liquefied:
Anhydrous ammonia	2 cylinders
Carbon dioxide	2 cylinders
Nitrous oxide	2 cylinders
Oxygen	2 cylinders
Sulphur dioxide	2 cylinders
Nitroglycerine, one percent solution in alcohol	20 pounds
Picric acid	25 pounds
Soluble cotton	25 pounds in all
2. Volatile flammable liquids (insoluble).
Benzine, benzole or naphthas of any kind	150 gallons in all
Coal tar	1 barrel
Coal tar oils (heavy)	10 barrels
Crude petroleum	1 barrel
Ethyl chloride and other ethers	200 pounds in all
Ether, nitrous	100 pounds in five pound packages or less
Ether, sulphuric	500 pounds
Rhigoline	2 dozen one pound tins
Varnishes, lacquers, etc.	275 gallons in all
Wood creosote	5 barrels
3. Volatile flammable liquids (soluble).
Acetone	1 barrel
Alcohol, denatured	10 barrels
Alcohol, ethyl	10 barrels
Alcohol, methyl	10 barrels
Aldehyde, ethyl	5 gallons
4. Non-volatile flammable liquids (insoluble).
Amyl acetate	10 barrels
Amyl alcohol	10 barrels
Aniline oil	5 drums
Cumol	5 barrels
Essential oils	10,000 pounds in all
Kerosene	1 barrel
Nitrobenzole	5 drums
Terebene	100 pounds
Toluol	350 pounds
Turpentine	10 barrels
Xylol	100 pounds
5. Non-volatile flammable liquids (soluble).
Glycerine	5,000 pounds
6. Combustible solids.
Metallic magnesium	100 pounds
Phosphorus	11 pounds
Phosphorus, red	11 pounds
Sulphur	25 barrels in all
7. Gums, resins, pitch, etc.
Burgundy pitch	5,000 pounds
Camphor	8,000 pounds
Gum thus	5 barrels
Naphthaline	50 barrels in all
Pitch (coal tar pitch)	2 barrels
Resins, balsams and other varnish gums	8,000 pounds in all
Rosin	5 barrels
Shellac	2,500 pounds
Stockholm tar	1,000 pounds
Tar, refined (wood)	10 barrels
Venice turpentine	2,000 pounds
8. Combustible fibres and powders (vegetable).
Cotton, absorbent	2,000 pounds
Cotton batting	10 bales
Excelsior	25 bales
Flax	20 bales
Jute	25 bales
Lampblack	10 barrels
Lycopodium	2,000 pounds
Oakum	2 bales
Pulverized charcoal	10 barrels
Sawdust	15 bags
Straw, packing	10 bales
9. Dangerously corrosive acids.
Anhydrous acetic	500 pounds
Carbolic	15,000 pounds
Glacial acetic	2,000 pounds
Hydrochloric	15 carboys
Hydrofluoric	500 pounds
Sulphuric	15 carboys
10. Acids.
Chromic	100 pounds
Iodic	5 pounds
Nitric	3 carboys
Nitric, fuming	25 pounds
Periodic	2 pounds
11. Peroxides.
Barium	2 casks
Calcium	100 pounds
Hydrogen, U.S.P.	5,000 pounds
Other hydrogen peroxides, over three percent, not to exceed fifteen percent	500 pounds
Potassium	10 pounds
Sodium	25 pounds
12. Chlorates.
Barium	500 pounds
Other metallic	100 pounds in all
Potassium	1,000 pounds
Sodium	1,000 pounds
13. Perchlorates.
Potassium	10 pounds
Other metallic perchlorates	10 pounds in all
14. Permanganates.
Potassium	1,000 pounds
Sodium	100 pounds
Other metallic permanganates	100 pounds in all
15. Nitrates.
Barium	1,200 pounds
Bismuth subnitrate	2,500 pounds
Cobalt	1,000 pounds
Copper	100 pounds
Iron, ferric	200 pounds
Mercury (mercuric)	100 pounds
Mercury (mercurous)	10 pounds
Potassium	2,000 pounds
Silver	50 pounds
Sodium	1,000 pounds
Strontium	1,200 pounds
Other metallic	500 pounds in all
16. Metallic oxides.
Lead binoxide	25 pounds
Lead (litharge)	1,200 pounds
Lead (red)	500 pounds
Mercury; yellow precipitate (mercurous)	200 pounds
Mercury; red precipitate (mercuric)	100 pounds
Silver	10 pounds
17. Substances made dangerous by contact with other substances.
Calcium carbide	60 pounds
Metallic potassium	5 pounds
Metallic sodium	5 pounds
All other metals of the alkalies or alkalone earths	5 pounds in all
Phosphides	10 pounds
Unslaked lime	2 barrels
Zinc dust	100 pounds

The commissioner may, in his or her discretion and when no unusual hazard is presented thereby, authorize the storage of greater quantities than those set forth in the foregoing schedule, or the storage of other substances not specified therein.

(5) Former Administrative Code § 27-4242.

§ 27-4242 Storage.

. . . . . . . . . .

b. Liquids. The storage of acids or liquid chemicals which may cause explosions or combustion by flowing into, upon or among chemicals or other substances, shall be provided with safety catch basins or a similar device, so that, in case of the leakage of such acids or liquids, no danger to life or property will result. Carboys containing nitric acid shall be stored only in premises designed and constructed in accordance with all applicable provisions of the building code; and it shall be unlawful to permit sawdust, hay, excelsior, or any organic substance, or other acids or chemicals in close proximity to such carboys or stocks of nitric acid. A sufficient quantity of sand or infusorial earth shall be provided for absorbing all waste liquids from floors.

. . . . . . . . . .

(6) Former Fire Department Rule § 15-05.

§ 15-05 Fire Protection in Wholesale Drug and Chemical Supply Houses. The following shall be deemed to be in compliance with § 27-4237(3) of the Administrative Code of the City of New York:

. . . . . . . . . .

(d) Where such storage does not exceed 75 percent of the quantities allowed in § 27-4241, Administrative Code. For each 2,500 square feet of floor area or major portion thereof:

. . . . . . . . . .

Thermostatic alarm

(e) Where the storage exceeds 75 percent of the allowable quantity, an automatic sprinkler system is required.

(f) When the building exceeds four stories, an automatic sprinkler system is required.

(g) In any building where explosives and flammable substances are used or handled, if the area exceeds 5,000 square feet per floor an automatic sprinkler system is required.

(h) In any building exceeding 10,000 square feet per floor, an automatic sprinkler system is required.

(f) Retail Drug Stores.

(1) Former Administrative Code § 27-4246.

§ 27-4246 Quantities of supplies allowed. It shall be unlawful to store, sell or use in a retail drug store any of the following substances in quantities greater than those set forth in the following schedule:

1. Acids.
Carbolic	100 pounds
Hydrochloric	200 pounds
Nitric	15 pounds
Picric	1 ounce
Sulphuric	200 pounds
2. Volatile flammable liquids.
Acetone	5 pounds
Amyl acetate	1 gallon
Amyl alcohol	1 gallon
Amyl nitrate	2 ounces in one ounce bottles six dozen pearls
Ethyl alcohol	1 barrel
Benzine, benzole and naphtha of any kind	5 gallons in four ounce bottles or pint tins
Carbon bisulphide	3 pounds
Collodion	5 pounds
Denatured alcohol	1 barrel
Ether, sulphuric	5 pounds
Methyl alcohol	1 barrel
Other ethers, in all	2 pounds
Turpentine	1 barrel
3. Flammable liquids.
Essential oils	100 pounds in all
Glycerine	500 pounds
Pine tar	10 pounds
4. Combustible solids.
Aluminum (powder)	1 pound
Balsams and resins	50 pounds in all
Camphor	350 pounds
Charcoal, powdered	10 pounds
Lampblack	10 pounds
Magnesium (powder)	8 ounces
Magnesium (ribbon)	8 ounces
Naphthalene	4 barrels
Phosphorus, red	2 ounces
Phosphorus, yellow	1 ounce
Rosin	10 pounds
Sulphur and brimstone	250 pounds in all
5. Combustible fibres.
Cotton, absorbent	150 pounds in cartons
Cotton, batts	10 pounds in closed boxes or other containers
Cotton, loose	5 pounds in closed boxes or other containers
Excelsior, hay and straw	2 bales (except in stores located in tenement houses)
Lint	10 pounds in closed boxes or other containers
Oakum	10 pounds in closed boxes or other containers
6. Oxidizers.
Barium peroxide	1 pound
Bismuth subnitrate	20 pounds
Calcium peroxide	5 pounds
Chromic acid	1 pound
Lead oxide (red)	5 pounds
Lime, unslaked	200 pounds in sealed metal cans
All other metallic bichromates or chromates	50 pounds in all
Mercuric oxide (red)	2 pounds
Mercurous oxide	2 pounds
Mercury nitrate	1 pound
Phosphides	10 ounces in all
Potassium bichromate	10 pounds
Potassium chlorate	25 pounds in five pound containers or less
Potassium nitrate	50 pounds
Potassium perchlorate	1 ounce
Potassium permanganate	5 pounds
Silver nitrate	1 pound
Silver oxide	1 ounce
Sodium bichromate	10 pounds
Sodium chlorate	5 pounds
Sodium nitrate	25 pounds
Sodium permanganate	1 pound

The commissioner may, in his or her discretion, when no extra hazard is permitted thereby, authorize the storage of larger quantities of substances than those set forth in the foregoing schedule, or of other explosives or flammable substances not specifically named therein.

(g) Non-Production Chemical Laboratories.

(1) Former Fire Department Rule § 10-01.

§ 10-01 Storage and Use of Chemicals, Acids and Gases in College, University, Hospital, Research and Commercial Laboratories.

(a) Definitions.

. . . . . . . . . .

Laboratory. Laboratory means a generic term denoting a building, space, equipment or operation, wherein testing, research or experimental work is conducted and shall include laboratories used for instructional purposes.

Laboratory Building. Laboratory building means a structure consisting wholly or principally of one or more laboratory units.

Laboratory Unit. Laboratory unit means an enclosed, fire rated space used for testing, research, experimental or educational purposes. Laboratory units may or may not include offices, lavoratories, and other contiguous rooms maintained for, or used by, laboratory personnel, and corridors within the units. It may contain one or more separate laboratory work areas.

Laboratory Work Area. Laboratory work area means a room or space within a laboratory unit for testing, analysis, research, instruction, or similar activities which involve the use of chemicals or gases. A work area may or may not be enclosed.

Exception: This section shall not apply to physical, electronic, instrument or similar laboratories which use small quantities (less than 32 oz. flammable liquids, 0.5 lb. oxidizing materials, and 0.15 cu.ft. water container capacity of flammable gases) for incidental purposes such as cleaning, maintenance or repair and these substances are not used directly in experimental chemical research work.

. . . . . . . . . .

Storage Cabinet. Storage cabinet means a cabinet for the storage of not more than 60 gallons of flammable liquid which is designed and constructed in accordance with "OSHA General Industry Standards-Flammable and Combustible Liquids".

Storage Room. Storage room means a room where chemicals or gases regulated by this directive are stored and not otherwise used or reacted.

Unstable (Reactive) Chemical. Unstable (reactive) chemical means a substance, other than one classified as an explosive or blasting agent, which will vigorously and energetically react, is potentially explosive, will polymerize or decompose instantaneously, undergo uncontrollable auto-reaction or can be exploded by heat, shock, pressure or combinations thereof. Examples are: organic peroxides, nitromethane, and ammonium nitrate.

. . . . . . . . . .

(d) Storage.

(1) Storage of chemicals for use in individual laboratory units shall be in accordance with Table I below. Any amounts in addition to the maxima set forth in Table I below shall be at the discretion of the Commissioner and shall be in storage cabinets.

(2) Determination of the fire rating of laboratory unit enclosures shall be in accordance with the criteria of the Building Code, except that, in partitions not required to have a fire rating under the provisions of that Code, fire dampers shall not be required to be installed in existing ducts penetrating existing laboratory partitions.

(3) Storage of volatile flammable oils shall be in accordance with Table I of this section.

Table I
Maximum Laboratory Unit Storage Limits

Lab Type	Fire Rating	Fire Protection	Flammable Liquids and	Flammable Solids	Oxidizing Materials	Unstable Reactive
I	2 Hours	Sprinklers	30 gals	15 lbs	50 lbs	12 lbs
II	1 Hour	Sprinklers	25 gals	10 lbs	40 lbs	6 lbs
III	2 Hours	No Sprinklers	20 gals	6 lbs	30 lbs	3 lbs
IV	1 Hour	No Sprinklers	15 gals	3 lbs	20 lbs	2 lbs

. . . . . . . . . .

(5) Storage and use of flammable gases within laboratory units shall be in accordance with Table II below, except that no storage of flammable gases shall be allowed in any laboratory unit where there is not an on-going operation requiring their use. On-going operations shall allow storage of flammable gases sufficient to meet the operating requirements of the equipment in that laboratory unit plus an equal reserve.

Table II
Storage of Flammable Gases

Area of Laboratory in square feet**	up to 500 sq. ft.	per additional 100 sq. ft.	Maximum per Laboratory Unit
Maximum Capacity	9.24	1.54	15.4

**Water container capacity

. . . . . . . . . .

(9) Storage rooms shall be of a minimum 2 hour rated construction and shall be provided with:

(i) a constant mechanical exhaust system to the exterior capable of providing at least six changes of air per hour;

(ii) a sill at the doorway (except that no sill shall be required at doorways of flammable gas storage rooms);

(iii) a sprinkler system providing at least one head per 90 sq. ft.

. . . . . . . . . .

(13) All fixed electrical equipment within cold rooms where flammable liquids or flammable gases are used shall be explosion proof in accordance with subdivision (f)(3) of this section. Cold rooms shall not be used for storage of principal stock of flammable gases or flammable liquids.

(e) Signs and warning placards.

(1) A sign prohibiting smoking shall be conspicuously posted at the exterior of entrances to storage and laboratory areas and within such areas.

(2) Signs with RED letters of minimum size two inches high by three-eighths inch stroke on a contrasting background shall be posted at entrances to areas:

(i) Where materials which react with water are stored or used.

(ii) Where flammable gases or explosives are stored or used.

(3) Warning placards in conformance with Federal, State and Local regulations shall be posted at entrances to areas:

(i) Where radioactive material is stored or used;

(ii) Where biohazardous material is stored or used;

(iii) Where poisonous gases are stored or used.

(4) The outside of each chemical laboratory unit door shall have a sign, as detailed below, or metal or other durable material, with RED letters on a white background which shall be located in the area of the mid-point of the height of the door.

(f) Fire prevention and protection.

(1) In laboratories and storage rooms which are sprinkled, the protection area per sprinkler head shall not exceed 90 sq. ft., except that the protection area per sprinkler head shall not exceed 100 sq. ft. where the system is hydraulically designed.

(2) In existing buildings, water supply to sprinkler systems may be taken off existing standpipes provided that the system is hydraulically designed.

(3) All electrical equipment in all flammable liquid and all flammable gas storage rooms shall conform with the requirements of the New York City Electrical Code set forth in § 27-3198(4), Administrative Code, irrespective of whether such room would be classified as a Class I Location by § 27-3197(1) of such code.

(4) Laboratory units and laboratory work areas shall be considered as unclassified electrically with respect to § 27-3197 of the Administrative Code.

(5) Fume hoods shall be provided and utilized in conformance with these requirements and those of such other agencies as have jurisdiction over operations and special storage conditions which give off noxious odors or flammable or poisonous vapors, or radioactive materials.

(6) Fume hoods shall be so vented that a minimum average face velocity of 100 feet per minute, with minimum face velocity at any point not less than 75 feet per minute, is provided.

(7) Fume hoods shall be located away from doors, windows that may be opened, principal traffic lanes or room air outlets or returns which may cause drafts sufficient to interfere with exhaust operations of fume hoods.

(8) Every fume hood used for handling perchloric acids, strong oxidizing agents or highly reactive chemicals shall be served by an independent duct.

(9) Common ducts may be permitted for fume hoods in the same laboratory unit. Hoods in different laboratory units shall not have their ducts combined. Hoods in common ducts must be so arranged or equipped that exhaust from one duct cannot be forced out through any other hood served by the common duct.

(10) Exhaust ducts shall have the minimum number of turns, bends or obstructions as is practical, and shall have adequate air movement in the duct for the number of hoods vented by that duct and sufficient to prevent any back up into the hood.

(11) Washdown provisions shall be provided for hoods and ducts in which perchloric acid is heated above ambient temperature and in which vapors are not trapped or scrubbed before entering the hood exhaust system.

(12) Exhaust fans for ducts shall, wherever possible, be located outside the building and as close as possible to the terminal so that negative pressure is maintained in ducts within the building.

(13) A system of explosion hazard control consisting of explosion prevention, explosion suppression, explosion venting, area ventilation, extinguishment system(s), barrier protection, separation and isolation, remove controlled apparatus or any combination thereof, shall be provided in laboratories or storage rooms where any of the following conditions occur:

(i) Storage of materials which in themselves are readily capable of detonation or of an explosive decomposition or explosive reaction at normal ambient temperature and pressure.

(ii) Use of materials which explode, violently decompose or produce rapid increases in pressure and temperature upon:

(A) Vacuum distillation;

(B) Being subjected to slight or moderate shock;

(D) Exposure to pressure or more than one atmosphere;

(E) Exposure to temperature in excess of 122(degrees)F. or 50(degrees)C.;

(F) Exposure to air;

(G) Increase in the concentration above which the substance is not longer stable;

(H) Standing (i.e. spontaneously).

(iii) Highly exothermic reactions which also involve rapid increases in pressure, such as certain polymerizations, oxidations, nitrations, peroxidations, hydrations, or organometallic reactions.

(iv) Use or formation of materials whose chemical structure or functional group indicate potential hazard, but whose properties have not been established. Examples would be triple bonds, epoxy radicals, nitro and [nitroso] nitrous compounds, and peroxides.

(14) The commissioner shall evaluate the method of explosion hazard control, on an individual basis, considering in each instance the following criteria:

(i) The nature and quantity of the constituent material(s);

(ii) The nature of the process;

(iii) The potential energy release;

(iv) Isolation of the equipment;

(v) The particular physical location and exposures.

. . . . . . . . . .

(2) Former Fire Department Rule § 34-01

§ 34-01 Storage and Use of Limited Quantities of Chemicals, Acids, and Flammables for Instruction Purposes in [Public High] Schools Through the Twelfth Grade.

(a) No liquefied chlorine may be stored in any school.

(b) No more than five (5) gallons of volatile flammable oils derived from petroleum, shale oil or coal tar should be stored at any one time.

(d) No chemicals or substances as listed under §§ 27-4240 and 27-4234 of the Administrative Code should be stored in a school.

. . . . . . . . . .

(i) The storage of dangerous chemicals, volatile flammable oils and liquids shall be confined to metal cabinets vented at top and bottom. A cardholder should be provided for a visible record of the contents and maximum amount stored therein; also, a caution sign, if applicable to read: "In case of fire do not use water."

. . . . . . . . . .

Note: The foregoing rules shall be the basis for the issuance of Fire Department permits to schools throughout the City of New York.

(l) Listed below are the maximum quantities of combustibles and dangerous chemicals which may be stored in [public high] schools through the twelfth grade:

Explosives
Picric Acid	1 lb.
Carbon Bisulphide	10 lbs.
Carbon Dioxide	1 lb.
Anhydrous Ammonia	1 lb.
Sulphur Dioxide	1 lb.
Nitrous Oxide	1 lb.
Oxygen	1 lb.

Volatile Flammable Liquids (Insoluble)
Crude Petroleum	2 lbs.
Benzine, Benzola or Naphthas of any kind	2 lbs.
Ether, Sulphuric	10 lbs.
Varnishes, Lacquers, etc.	2 lbs.

Volatile Flammable Liquids (Soluble)
Acetone	1 lb.
Alcohol, Denatured	5 gals.
Aylcohol, Methyl	5 gals.

Non-Volatile Flammable Liquids (Insoluble)
Amyl Acetate	2 lbs.
Amyl Alcohol	2 lbs.
Aniline Oil	1 lb.

Non-Volatile Flammable Liquids (Insoluble)
Kerosene	2 lbs.
Turpentine	1/2 gal.
Tuluol	1 gal.
Xylol	1 gal.
Essential Oils	2 lbs.

Non-Volatile Flammable Liquids (Soluble)
Glycerine	5 lbs.

Combustible Solids
Phospherous	1/4 lb.
Phospherous, Red	5 lbs.
Sulphur	15 lbs.
Metallic Magnesium	1 lb.

Gums, Resins, Pitch, Etc.
Camphor	1 lb.
Resin	11 lb.
Venice Turpentine	1 lb.
Naphthaline	1 lb.
Shellac	1 lb.

Combustible Fibres and Powders (Vegetable)
Pulverized Charcoal	5 lbs.
Cotton, Absorbent	5 lbs.
Lampblack	2 lbs.
Lycopodium	1 lb.

Dangerously Corrosive Acids
Glacial Acetic Acid	5 gals.
Hydrofluoric Acid	1 lb.
Hydrochloric Acid	12 gals.
Sulphuric Acid	12 gals.
Carbolic Acid	1 lb.

Acids
Acid, Chromic	1 lb.
Acid, Nitric	12 gals.

Peroxides
Hydrogen Peroxide, U.S.P.	0 lbs.
Sodium Peroxide	2 lbs.
Barium Peroxide	2 lbs.
Other Hydrogen Peroxides over 3 percent, not to exceed 15 percent	5 lbs.

Chlorates
Potassium Chlorate	15 lbs.

Permanganates
Potassium Permanganates	1 lb.

Nitrates
Barium Nitrate	1 lb.
Stontium Nitrate	1 lb.

Cobalt Nitrate	1 lb.
Copper Nitrate	1 lb.
Iron Nitrate, Ferric Mercury Nitrate (mercuric)	1 lb.
Mercury Nitrate (mercurous)	lb.
Potassium Nitrate	10 lbs.
Silver Nitrate	5 lbs.
Sodium Nitrate	15 lbs.
Other Metallic Nitrates	5 lbs.

Metallic Oxides
Lead Oxide (red)	5 lbs.
Lead Oxide (Litharge)	10 lbs.
Oxide of Mercury red precipitate (mercuric)	10 lbs.
Oxide of Mercury; yellow precipitate (mercurous)	5 lbs.

Substances Made Dangerous by Contact with Other Substances
Calcium Carbide	5 lbs.
Metallic Potassium	1/2 lb.
All other Metals of the Alkalies or Alkaline Earths	2 lbs.
Metallic Sodium	1/2 lb.
Zinc Dust	5 lbs.
Slaked Lime	25 lbs.

(Renumbered City Record 9/20/2023, eff. 10/20/2023)

§ 8328-01 Storage of Aerosols in Pre-Existing Facilities.

(b) Definitions. The following terms shall, for purposes of this section and as used elsewhere in 3 RCNY Chapter 83, have the meanings shown herein:

Combustible pressurized product. A pressurized product that has a flashpoint at or above 100 degrees Fahrenheit and below 300 degrees Fahrenheit, or where a flame projection exceeds three (3) inches but not more than eighteen (18) inches at full valve opening when tested by a method described in the regulations of the United States Department of Transportation, as set forth in Title 49, Part 173 of the Code of Federal Regulations. (Former Fire Department rule § 32-01(b))

Extremely flammable pressurized product. A pressurized product that has a flashpoint below 20 degrees Fahrenheit and where a flashback (a flame extending back to the dispenser) is obtained at any degree of the valve opening when tested by a method described in the regulations of the United States Consumer Product Safety Commission, as set forth in Title 16, Part 1500 of the Code of Federal Regulations. (Former Fire Department rule § 32-01(b))

Flammable pressurized product. A pressurized product that has a flashpoint at or above 20 degrees Fahrenheit and below 100 degrees Fahrenheit, or where a flame projection exceeds eighteen (18) inches at full valve opening or a flashback (a flame extending back to the dispenser) is obtained at any degree of valve opening when tested by a method described in the regulations of the United States Consumer Product Safety Commission, as set forth in Title 16, Part 1500, of the Code of Federal Regulations, or the regulations of the United States Department of Transportation, as set forth in Title 49, Part 173 of the Code of Federal Regulations. (Former Fire Department rule § 32-01(b))

Pressurized product. The product in a pressurized container with a propellant that causes the product to be expelled from the container through a valve. This term includes all such products, irrespective of the ingredients of the product, the type of propellant, or form in which the product is dispensed. (Former Fire Department rule § 32-01(b))

(c) General Provisions. Pre-existing facilities with aerosol storage the design and installation of which would not be allowed or approved under the Fire Code, but which, pursuant to FC 102.3 and 3 RCNY § 102-01, may be continued with respect to such aerosol storage under the applicable laws, rules and regulations in effect prior to the Fire Code, shall continue to comply with the provisions of such laws, rules and regulations, including former Fire Department rule § 32-01, until such time as such facilities may be required to comply with the Fire Code and the rules with respect to their design and installation.

(d) Pressurized Products.

(1) Former Fire Department Rule § 32-01.

§ 32-01 Manufacture, Storage and Use of Pressurized Products.

. . . . . . . . . .

(e) Storage and use requirements.

. . . . . . . . . .

(2) Combustible, flammable or extremely flammable pressurized products in quantities exceeding the following amounts shall comply with the following additional storage requirements:

(i) Combustible, flammable or extremely flammable pressurized products in quantities exceeding a total of fifty (50) gallons but not more than a total of two hundred (200) gallons shall be stored in an area protected by an automatic fire sprinkler system, an area having natural ventilation, or an area which is vented to the outdoors by a duct having a cross-section of at least eight (8) inches.

(ii) Combustible, flammable or extremely flammable pressurized products in quantities exceeding a total of two hundred (200) gallons shall be stored as follows:

(A) in non-combustible (fireproof) buildings, in a fireproof storage room, unless the building is equipped with an automatic fire sprinkler system or other fire extinguishing system approved by the Department;

(B) in combustible (non-fireproof) buildings, in a fire-resistive storage room that is vented to the outdoors and that is equipped with an automatic fire sprinkler system or other extinguishing system approved by the Department.

(Renumbered City Record 9/20/2023, eff. 10/20/2023)

§ 8329-01 Storage of Combustible Fibers in Pre-Existing Facilities.

(a) Scope. This section consolidates the New York City Fire Prevention Code and former Fire Department rules in effect on June 30, 2008, that are applicable to the design and installation of combustible fiber storage in pre-existing facilities.

(b) Definitions. [Reserved.]

(1) Combustible fiber storage on waterfront structures. Combustible fiber storage on waterfront structures in compliance with former Fire Department rule § 30-01 in effect on June 30, 2008, is allowed and would be approved under the provisions of the Fire Code and the rules, and accordingly, such facilities shall be designed and installed in compliance with the requirements of FC 2906.

(Renumbered City Record 9/20/2023, eff. 10/20/2023)

§ 8330-01 Storage of Compressed Gases in Pre-Existing Facilities.

(a) Scope. This section consolidates the Fire Prevention Code and former Fire Department rules in effect on June 30, 2008, that are applicable to the design and installation of compressed gas installations in pre-existing facilities.

(b) Definitions. [Reserved.]

(c) General Provisions. Pre-existing facilities with compressed gas installations the design and installation of which would not be allowed or approved under the Fire Code, but that, pursuant to FC 102.3 and 3 RCNY § 102-01, may be continued with respect to such compressed gas installations under the applicable laws, rules and regulations in effect prior to the Fire Code, shall continue to comply with the provisions of such laws, rules and regulations, including former Fire Department rules §§ 12-03, 23-10, 23-06 and 23-07, as applicable, until such time as such facilities may be required to comply with the Fire Code and the rules with respect to such compressed gas installations.

(d) Medical Gases.

(1) Former Fire Department Rule § 12-03

§ 12-03 Storage of Oxygen Cylinders for Use in Institutional Occupancies.

. . . . . . . . . .

(1) When outdoor storage or a separate storage building is not feasible, oxygen cylinders shall be stored in an approved storage room.

(i) The storage room shall conform to the Building Code, but shall have a fire resistive rating of at least one (1) hour.

(ii) Storage room shall be provided with natural outside ventilation consisting of an open louvre having an area equivalent to at least one percent of the storage room area, or, in lieu thereof an adequate mechanical exhaust system shall be provided. Control for mechanical exhaust system to be located outside of the storage room. Ventilation shall conform to the Building Cede, but shall not be less than the foregoing requirements.

(iii) Storage room to have fireproof door without louvres.

(iv) A sign shall be provided on the outside of the door to the storage room reading:

OXYGEN STORAGE
NO SMOKING-NO OPEN FLAMES

[lettering] Lettering shall not be less than two (2) inches in height and shall be either RED ON A WHITE or WHITE ON A RED background.

(v) All electric lights, switches, relays and other electrical equipment shall be vapor proof design if such equipment is located in the storage room.

(vi) Oxygen Storage Rooms shall not communicate directly with anesthetizing locations or storage locations for combustible or flammable anesthetic agents.

(2) Liquid oxygen cylinders may be stored only on special permit of the Fire Commissioner under such conditions as he or she deems necessary.

(3) When outdoor storage is utilized for oxygen cylinders: Cylinders shall be protected against extremes of weather, and from the ground beneath to prevent rusting.

(i) During winter, cylinders shall be protected against accumulation of ice and snow.

(ii) During summer, cylinders shall be screened against the continuous direct rays of the sun.

(d) General storage rules.

(1) Oxygen cylinders shall not be stored with flammable gases, oils, grease, etc.

(2) Cylinders to be properly secured to prevent damage and away from sources of heat.

(3) An oxygen cylinder for immediate and emergency use may be kept on each floor in a cabinet, closet or room. (This is in addition to cylinders in actual use.)

. . . . . . . . . .

(6) No recharging of cylinders to be conducted on premises.

. . . . . . . . . .

(2) Former Fire Department Rule § 23-10

§ 23-10 Design, Construction and Erection of Central Oxygen and Nitrous Oxide Piping Systems in Hospitals.

(a) Scope. This section applies only to installations made prior to the Department of Buildings taking jurisdiction on December 6, 1968 over these type installations as specified in Section P114.12 of Reference Standard 16.

(b) General.

(1) Piping systems herein described must not be used for the distribution of combustible anesthetic gases.

(2) Where oxygen or nitrous oxide piping is exposed, it shall be painted green for oxygen service and blue for nitrous oxide service.

(3) All current rules published by the National Fire Protection Association under chapter "Recommended Safe Practices for Hospital Operating Rooms", and rules adopted by the Compressed Gas Association, Inc., shall be observed insofar as applicable for the construction and use of central piping systems. In addition to these rules, the following guide specifications shall be observed:

(1) All electrical lights, switches, relays, and other electrical equipment shall be of vapor proof design if such equipment is located in the manifold room.

(2) Manifold room shall have fireproof door without louvres. Provide lettering on outside of door leading to manifold room. Letters are to be not less than 2 inches high, reading "Oxygen Room-No Smoking".

(3) Provide exhaust system for ventilating manifold room. If natural outside ventilation is not provided, provide adequate mechanical exhaust system. Control for mechanical exhaust system shall be outside of manifold room.

. . . . . . . . . .

(d) Manifold header.

(1) Manifold shall be of substantial design. Manifold and header controls shall be securely bolted to wall or floor by means of substantial supports.

(2) Manifold header shall be constructed of bronze or brass. High pressure headers, fitting and connecting coils shall be capable of withstanding a test pressure of not less than 4,000 pounds per square inch.

(3) Leads of connections attaching cylinders to manifold shall be of annealed brass, bronze or copper and of suitable strength and flexibility. Check valve to be provided in each lead to prevent backflow.

(4) Approved type pressure reducing valves shall be installed in manifold assembly to maintain a delivery pressure of not more than 50 pounds per square inch in the distribution system. Pressure gauges marked "Oxygen" or "Nitrous Oxide" respectively shall be provided in conspicuous location in order to permit observation of delivery pressure.

(5) A built-in pressure relief valve shall be provided on the reduced side of the manifold header. Relief valve shall be set at not over 100 pounds per square inch. Discharge of relief valve shall be piped to outside air.

(6) Means shall be provided to prevent the connection of nitrous oxide cylinders to an oxygen manifold and vice versa.

. . . . . . . . . .

(e) Distribution system.

(1) Oxygen or nitrous oxide distribution piping shall be standard full weight iron pipe size, brass or copper pipe with substantial brass or copper fittings or copper tubing type K or B with approved fittings and shall be made clean before installation and protected against mechanical injury. Proper allowance shall be made for expansion and contraction, jarring and vibration. Brass used for piping shall have a copper content of not less than 83 percent.

. . . . . . . . . .

(3) Threads shall be in accordance with American type pipe thread standards. Threaded joints shall be screwed and soldered or screwed with litharge and glyserine. Threadless type joints shall be brazed with high temperature brazing alloy.

(4) Provide shut-off valve for each individual vertical riser. Shut-off valve shall be located in a conspicuous location. Shut-off valve shall be mounted in a wall box. Cover of box shall be marked, "Riser shut-off valve oxygen service do not dose except in emergency." Cover of box shall have locking means with key for opening box in separate receptacle, mounted next to the shut-off box.

(5) Pipe shafts for vertical risers shall be vented at the top except such shafts which are not open between floors and in which piping is carried through sleeves packed with oil free incombustible material at the floor levels.

(6) Horizontal distributing branches taken off main risers on each floor shall be provided with a shut-off valve or shut-off valves so that oxygen service for an entire floor or section of a floor may be shut off without affecting service on other floors. Such shut-off valve shall be provided in each branch line for every twelve outlets or for every hundred feet of branch line, passageway between furthermost outlet and shut-off valve to be unobstructed.

(7) Floor shut-off valves shall be located in conspicuous manner and in easy reach, properly marked, either recessed or exposed, or

(8) The following may be substituted as conforming with paragraphs (4) and (7) of subdivision (e) above: A valve box fitted with an emergency replaceable polystyrene window with a pull ring assembly, which can be snapped out in an emergency. This door window shall be lettered "Caution-Oxygen or Nitrous Oxide Valve. Close only in emergency-Pull ring to break window."

(f) Outlet valves and outlet boxes.

(1) For operating rooms and anesthesia rooms.

(i) For each operating or anesthesia room provide a separate shut-off valve so that shutting off gas supply to one operating or anesthesia room will not affect the supply to others. Valves shall be located on the outside of such rooms and be accessible at all times for use in emergency. Valves shall be mounted in recessed boxes or in such manner that they are protected against mechanical injury. Valves shall be of acceptable type and marked to prohibit tampering or inadvertent closing.

(ii) Where oxygen is piped in combination with other anesthetic gases, individual wall outlets shall be fitted with safety keyed outlet valves so as to prohibit the accidental connection of an oxygen line to a nitrous oxide line and vice versa. Safety keyed outlet valves shall be automatically closed when safety key on the take-off line is disconnected from the outlet valve.

(iii) Where oxygen only is piped to operating or anesthesia rooms, not combined with other anesthetic gases, an approved type oxygen wall outlet valve with dust cap and chain is acceptable.

(2) Wall outlets in patient and treatment rooms.

(i) An approved type oxygen and shut-off valve with dust cap and chain, or an automatic safety keyed outlet valve, or a combination of both shall be provided exposed or in a flush mounted recessed wall box so that various accessories may be connected to such outlet valves.

. . . . . . . . . .

(g) Alarm systems. A closed circuit electrical operating alarm system shall be provided that will give a visible and audible signal when the pressure in the system varies eight pounds above or below the normal line pressure of 50 pounds. All equipment shall be approved by the Board of Standards and Appeals of the City of New York. All wiring shall be installed standard weight rigid iron conduit, and conductors shall be not less than #14 gauge copper wire. Alarm indicating panel shall be located in a strategic location in the hospital where it is under observation at all times. The system shall be connected to the house side of the owner's lighting meter through an approved 3-wire National Electric Code (N.E.C.) cartridge fuse cut-out having a removable strap or neutral bar. This cut-out cabinet shall be painted red, provided with a lock and stenciled "OXYGEN ALARM".

. . . . . . . . . .

(e) Anhydrous Ammonia.

(1) Former Fire Department Rule § 23-06

§ 23-06 Storage and Use of Ammonia with Dissociating Equipment.

(a) Location. Location, of a tank, is to be approved by the Department of Buildings after a site inspection by a representative of the fire department.

(b) Storage.

(1) Storage of ammonia in cylinders shall be in an area of masonry which has been approved by the Department of Buildings. This area shall be independently vented to the outer air.

(2) Storage of ammonia in tanks.

(i) Tanks may be located above ground outside of buildings.

(ii) Such tanks shall be provided with: Protection against the sun's rays; electrical groundings; protection against damage by a barrier satisfactory to the fire commissioner; a water deluge system over the tank; a remote control for such deluge system; a vandal-proof fence which will surround the tank.

(3) Tanks located inside the buildings shall be equipped with both manual and automatic deluge systems.

(1) All piping shall be extra heavy black steel properly supported and protected against mechanical injury and atmospheric corrosion and all fittings and valves forged or cast steel (not galvanized).

. . . . . . . . . .

(3) Provide dual relief valves from NH3 storage tank so that either relief valve may be removed for servicing without impairing protection of tank.

(4) All relief valves shall discharge in vent line piped at least 10' above roof of building and above any exposure within 25'. Such vents shall be equipped with rain caps.

(d) Ammonia dissociators.

(1) All dissociators or ovens used with dissociated ammonia, hydrogen or hydrogen-nitrogen mixtures shall be approved for such use by the Board of Standards and Appeals.

(2) All dissociator rooms shall be fireproof or fire resistive, sprinklered, and have independent fixed ventilation which shall conform with § 27-4131 of the Administrative Code.

. . . . . . . . . .

(4) Each oven or dissociator shall be vented to the outer air by rigid steel piping or a sheet metal duct with all joints tight.

(e) General requirements.

(1) Ammonia storage tanks shall meet the specifications of the American Society of Mechanical Engineers, or be approved by the Board of Standards and Appeals for such purposes.

. . . . . . . . . .

(3) Ammonia storage tanks shall not exceed 1,000 gallons in capacity.

(4) Tanks shall not be filled to more than 54% waterweight of capacity (approximately 85% by volume).

(5) Liquid outlets from tanks shall be protected with excess flow valves.

. . . . . . . . . .

(7) Instruction cards or operating charts shall be posted at or near the storage tanks, dissociators and ovens.

. . . . . . . . . .

(9) No mercury manometers or mercury seals shall be used at any time.

(10) All premises wherein ammonia in bulk is stored or used shall have at least twelve (12) sulphur tapers ready for use in event of a leak.

(2) Former Fire Department Rule § 23-07

§ 23-07 Storage and Use of Anhydrous Ammonia for Duplicating Machines.

(a) Scope. This section shall be applicable whether or not a permit is required under Chapter 4 of Title 27 of the Administrative Code. In cases of a conflict of this section with the requirements of the Board of Standards and Appeals, the latter shall prevail.

(b) Appliance shall be approved by New York City Board of Standards and Appeals and bear a permanently affixed label indicating such approval and its calendar number. Installation shall comply with the requirements of that resolution.

(c) Only one cylinder of anhydrous ammonia, not exceeding 150 lbs. capacity shall be used, except that each machine may have one reserve cylinder in the use area when properly manifolded to a pressure relief valve in accordance with § 23-07(d) and the supply valve is in the open position. All cylinders shall be secured by chain or other suitable means to prevent accidental toppling. Machines using a cylinder of 8 lbs. net weight or less of anhydrous ammonia, in addition to the permitted manifolded reserve, may have an additional 8 lbs. reserve supply, without manifold, in the use area in a metal cabinet marked in accordance with § 23-07(i).

(d) Relief valves shall be provided for anhydrous ammonia machines and such valves shall be set at not over 250 p.s.i. Relief valves shall be piped to a safe location in outer air by not less than 1/2 inch pipe. Piping to the outer air is not required for machines using a cylinder of eight pounds net weight or less if its relief valve is piped into an absorber.

(e) An excess flow valve shall be installed in the lines at or near the cylinder outlet; however, an excess flow valve is not required where a fitting is used with an orifice diameter, of a #60 drill size or less, properly installed.

(f) Systems using anhydrous ammonia cylinders, any of which exceed 8 lbs., shall be exhausted directly to a safe location in outer air through a duct of 4" minimum diameter. Air flow is to be insured by a mechanical blower with a minimum capacity of 175 cubic feet per minute incorporated into the machine. The provision of ventilation shall comply with Chapter 1 of Title 27 of the Administrative Code.

(g) (1) In addition to those permitted in § 23-07(c), reserve anhydrous ammonia cylinders stored shall not exceed a total of 300 lbs. net weight of anhydrous ammonia for use by any single occupant. Such storage shall be outdoors – protected from sun and all mechanical injury when such outside storage is permitted by the Zoning Resolution and is approved by the Department of Buildings or Department of [Ports and Trade] Small Business Services – or indoors in a separate room with ventilation to the outer air through a duct of 4" minimum diameter with inlet near ceiling. Plans for reserve storage rooms are to be approved by Department of Buildings or Department of [Ports and Trade] Small Business Services before construction is commenced, with a copy of approved plans to be filed with the Bureau of Fire Prevention. The door to the reserve storage room is to be self-closing and vapor tight if such doors lead to the interior of the building.

(2) The reserve storage room shall be equipped with open sprinkler heads which are placed in operation by a properly labelled valve located outside the storage room. The sprinkler line may be connected to house water supply in non-sprinkler buildings if lines are of adequate size according to the Administrative (Building) Code.

. . . . . . . . . .

(i) Warning signs shall be posted to be visible when entering rooms where anhydrous ammonia is used or stored. Such signs shall be visible whether doors are open or closed in accordance with the following format:

NOTICE

THIS AREA CONTAINS ANHYDROUS AMMONIA

IN CASE OF AN AMMONIA LEAK OR IF

A VERY STRONG AMMONIA ODOR IS PRESENT

1. CALL THE FIRE DEPT. (PHONE # ________________)

2. A NON-COIN PHONE MAY BE FOUND AT ________________

3. NOTIFY ALL PERSONNEL TO EVACUATE THE AREA

4. SHUT OFF ALL OPEN FLAMES

5. DO NOT SHUT OFF THE DUPLICATING MACHINE SINCE THAT WOULD SHUT OFF THE BLOWER PROVIDING HELPFUL AIR EXHAUST

6. CLOSE ALL DOORS TO ADJOINING AREA

. . . . . . . . . .

(k) All open flames shall be shut off in the event of an anhydrous ammonia leak.

(l) Twelve sulphur tapers, litmus paper or unexposed Diazo sensitized paper shall be provided readily accessible and located in the vicinity of the machine and reserve storage room. Such materials shall be in suitable condition to detect ammonia leaks.

(m) A permanent chart listing safety precautions for handling anhydrous ammonia shall be posted at storage facility and where machine is used.

(n) The emergency number for the fire department shall be posted in a conspicuous and permanent manner.

(o) All relief devices, except as provided in § 23-07(d) shall be piped directly to the outer air. Such piping shall be adequately secured and protected from physical damage. There shall be no shut-off valves in this piping.

(p) Detailed instructions for the operation of the anhydrous ammonia system shall be posted in a conspicuous and permanent manner.

(q) The anhydrous ammonia cylinder shall be connected to the duplicating machines with high pressure stainless steel flexible connector rated at 4,500 p.s.i. bursting pressure and/or with synthetic rubber hose with braid reinforcement with bursting pressure rating of 1750 p.s.i. and/or with equivalent rigid iron or steel pipe.

(r) All appurtenances such as flow meters, pressure regulators and pressure gauges shall be suitable for pressure involved and constructed of material suitable for use with anhydrous ammonia.

(Renumbered City Record 9/20/2023, eff. 10/20/2023)

§ 8331-01 Storage of Corrosive Materials in Pre-Existing Facilities.

(a) Scope. This section consolidates the New York City Fire Prevention Code and former Fire Department rules in effect on June 30, 2008, that are applicable to the design and installation of corrosive material storage in pre-existing facilities.

(b) Definitions. [Reserved.]

(c) General Provisions. Pre-existing facilities with corrosive material storage the design and installation of which would not be allowed or approved under the Fire Code, but which, pursuant to FC 102.3 and 3 RCNY § 102-01, may be continued with respect to such corrosive material storage under the applicable laws, rules and regulations in effect prior to the Fire Code, shall continue to comply with the provisions of such laws, rules and regulations, including former Fire Department rule § 1-01, until such time as such facilities may be required to comply with the Fire Code and the rules with respect to their design and installation.

(d) Acids.

(1) Former Fire Department Rule § 1-01.

§ 1-01 Tanks Used for Bulk Storage of Acids.

. . . . . . . . . .

(b) Storage tanks.

. . . . . . . . . .

(2) All new or relocated acid storage tanks shall be provided with acid proof dikes capable of holding the full contents of the tank or tanks within the dike in the event of leakage or rupture of the tanks or associated piping.

(3) New or relocated acid storage tanks shall not be permitted in the basement, cellar or subcellar of any structure.

(4) New, relocated or altered acid storage tanks shall be provided with excess flow valves for all bottom take-offs except where all bottom take-off piping terminates within the containing dike.

(5) All new and existing acid storage tanks shall be provided with adequate vents, not less than 1 1/4 inches for tanks up to 1,100 gallons, and not less than 2 inches for tanks of 1,100 gallons or more.

(Renumbered City Record 9/20/2023, eff. 10/20/2023)

Disclaimer: The Codes and other documents that appear on this site may not yet reflect the most current legislation or rules adopted by the City. In addition, certain textual errors and omissions may temporarily exist, resulting from problems in the source database provided to American Legal and from which this website was created. Although these errors and omissions are being corrected, any user discovering any such error is invited to please contact the publisher at NYC.editor@amlegal.com or at 800-445-5588 and/or the New York City Law Department at NYCCodeRulesCharter@law.nyc.gov.

Hosted by: American Legal Publishing

Back to Code Library

Previous Doc

Next Doc