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5503.4.6 Identification of emergency shutoff valves.
Emergency shutoff valves shall be identified by posting a durable sign at a conspicuous location at or near the valve.
5503.5 Container protection.
Cryogenic containers and systems shall be secured and protected against physical damage and tampering in accordance with FC 5003.9.2, and FC 5503.5.2 through 5503.5.4.
5503.5.1 Reserved.
5503.5.2 Securing of cryogenic containers.
Stationary containers shall be secured to foundations in accordance with the Building Code. Portable cryogenic containers shall be secured to prevent movement from contact, vibration or seismic activity. Nesting shall be an acceptable means of securing cryogenic containers. Cryogenic containers shall not be secured to plumbing pipes or electrical conduits.
5503.5.3 Securing of vaporizers.
Vaporizers, heat exchangers and similar equipment shall be anchored to a suitable foundation. Connecting piping shall be sufficiently flexible to provide for the effects of expansion and contraction due to temperature changes.
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