UL 565

Liquid-Level Gauges and Indicators for Anhydrous Ammonia and LP-Gas

Published by: Underwriters Laboratories / 09/13/2013 / 20 pages / 6 Edition
Liquid-Level Gauges for Anhydrous Ammonia and LP-Gas
UL 565
1 Scope
1.1 These requirements cover liquid-level gauges for anhydrous ammonia and liquefied petroleum gas (LP-Gas) for use with pressure vessels in nonrefrigerated systems in installations covered by the following American National Standards and others:
  • Compressed Gas Association, CGA G-2.1.
  • Liquefied Petroleum Gas Code, NFPA 58.
  • Storage and Handling of Liquefied Petroleum Gases at Utility Plants, ANSI/NFPA 59.

1.2 These requirements cover designs of gauges that require the release of liquid or gas phases of the contained fluid in order to function and gauges that do not require the release of liquid or gas phases of the contained fluid to function.

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