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6303.1 Quantities not exceeding the maximum allowable quantity per control area.
6303.1.1 Prohibited indoor storage, handling and use by occupancy.
It shall be unlawful to store, handle or use:
1. Class 4 oxidizers in Group A, E, I, R or U occupancies.
2. Class 4 liquid and solid oxidizers in offices in Group B, F, M or S occupancies, and any areas of such occupancies that are accessible to the public.
3. Oxidizing gases in portable containers exceeding an individual capacity of 250 SCF (7 m
3) for maintenance purposes, patient care or operation of equipment in Group A and E occupancies; Group B occupancy offices; and Group I and R occupancies, except as authorized by FC 6306.*
* Editor's note: "FC" prefix added at the discretion of the editor.
6303.1.2 Emergency shutoff.
Oxidizing gas piping systems shall be provided with approved manual or automatic emergency shutoff valves that can be activated at each point of use and each source.
6303.1.2.1 Shutoff at source.
A manual or automatic fail-safe emergency shutoff valve shall be installed on supply piping at the container or other source of supply. Manual or automatic valves on the containers supplying the oxidizing gas may serve as the emergency shutoff valve when the containers are the sole source of supply and are not manifolded.
6303.1.2.2 Shutoff at point of use.
A manual or automatic emergency shutoff valve shall be installed on the supply piping at the point of use or at a point where the equipment using the gas is connected to the supply system.
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