20.D Compressed Gas Cylinders.
20.D.01 Compressed gas cylinders must be visually inspected in accordance with 49 CFR 171 through 179, CGA C6, and CGA C8.
20.D.02 All Government-owned cylinders must be color coded and the gas contained identified by name in accordance with Military Standard (MIL-STD) 101B.
20.D.03 Storage.
> See also Section 20.D.10.
- Cylinders must be stored in well-ventilated locations.
- Cylinders containing the same gas must be stored in a segregated group. Empty cylinders must be labeled as empty and stored in the same manner.
- Cylinders in storage must be separated from flammable or combustible liquids and from easily ignitable materials (such as wood, paper, packaging materials, oil, and grease) by at least 40 ft (12.2 m) or by a fire resistive partition having at least a 1-hour rating.
- Cylinders containing oxygen or oxidizing gases must be separated from cylinders in storage containing fuel gases by at least 20 ft (6 m) or by a fire resistive partition having at least a 1-hour rating.
- Areas containing hazardous gas in storage must be appropriately placarded.
- Exception: If it is reasonably anticipated that gas will be drawn from the cylinders within 24 hours, they are considered "in service" and these storage requirements do not apply.
20.D.04 Smoking must be prohibited wherever cylinders are stored, handled, or used.
20.D.05 Cylinders must be protected from physical damage, electric current, and extremes of temperature. The temperature of cylinders must not be allowed to exceed 125ºF (51.7ºC).
20.D.06 Cylinders containing oxygen and acetylene (or other fuel gas) must not be taken into confined spaces.
Knowledge Check Choose the best answer for the question.
20-6. Cylinders in storage must be separated from flammable or combustible liquids and from easily ignitable materials by at least _____ or by a fire resistive partition having at least a _____ rating.
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