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(a) “Closed container” means a container so sealed by means of a lid or other device that neither liquid nor vapor will escape from it at ordinary temperatures.
(b) “Container” means any can, bucket, barrel or drum intended for portable use.
(c) “Flashpoint of the liquid” means the minimum temperature at which it gives off vapor sufficient to form an ignitable mixture with the air near the surface of the liquid.
For a liquid which has a viscosity of less than 45 Saybolt Universal Seconds (SUS) at 100 degrees Fahrenheit, does not contain suspended solids, and does not have a tendency to form a surface film while under test, the procedure specified in the Standard Method of Test for Flashpoint by Tag Closed Tester (ASTM D-56-70) shall be used.
For a liquid which has a viscosity of 45 SUS or more at 100 degrees Fahrenheit, or contains suspended solids, or has a tendency to form a surface film while under test, the Standard Method of Test for Flashpoint by Pensky-Martens Closed Tester (ASTM D-93-71) shall be used, except that the methods specified in Note 1 to Section 1.1 of ASTM D-93-71 may be used for the respective materials specified in the Note.
For a liquid that is a mixture of compounds that have different volatilities and flashpoints, its flashpoint shall be determined by using the procedure specified in the above paragraphs on the liquid in the form it is shipped. If the flashpoint as determined by this test is 100 degrees Fahrenheit or higher, an additional flashpoint determination shall be run on a sample of the liquid evaporated to 90 percent of its original volume, and the lower value of the two tests shall be considered the flashpoint of the material.
(d) Flammable Liquids. All flammable liquids shall be divided into three classes according to flashpoint as follows:
Class I. Liquids with a vapor pressure less than 40 pounds per square inch absolute at 100 degrees Fahrenheit and a flashpoint below 100 degrees Fahrenheit, 38 degrees centigrade as determined by the herein-required test.
Class II. Liquids with a vapor pressure less than 40 pounds per square inch absolute at 100 degrees Fahrenheit and a flashpoint above that for Class I and below 140 degrees Fahrenheit, 60 degrees centigrade, as determined by the herein-required test.
Class III. Liquids with a flashpoint above that for Class II and below 200 degrees Fahrenheit, 93 degrees centigrade. Flammable liquids shall include but not be limited to:
Class I
Ether
Carbon bisulfide
Gasoline
Naphtha
Benzol
Collodion
Acetone
Ethyl alcohol
Amyl acetate
Toluol
Ethyl acetate
Methyl acetate
Amyl alcohol
Turpentine
Class II
Kerosene
Fuel Oil No. 1
Class III
Fuel Oil No. 2
Aniline
Creosole
Any fluid, manufactured liquid or fluid commodity, such as paint, varnish or lacquer, dryer or cleaning solution or polishing liquid which contains flammable liquid, shall be classed in accordance with this section according to the flashpoint of the mixture.
When artificially heated to temperatures equal to or higher than their flashpoints, Class II and III liquids shall be subject to the applicable provisions for Class I liquids. The provisions of this chapter for Class I flammable liquids shall be applied to high flashpoint liquids when heated to temperatures equal to or higher than their flashpoints even though these same liquids would be outside the scope of this chapter when they are not heated.
(e) “Process area” shall mean that location where flammable liquids are processed or stored as a part of current production.
(f) “Safety can” shall mean a container, not over five-gallon capacity, having a spring closing lid and spout cover, tested and approved by a recognized testing agency.
(g) “Anti-syphon valve” shall mean a valve designed to prevent the syphoning of liquid from a tank in the event of an interruption in the discharge pump or pump suction.
(Prior code § 129.1-2; Amend Coun. J. 5-2-95, p. 73)