Red Line
February 23, 2018
UL 565
UL Red Line
Edition 6
Published Date: February 23, 2018
Last Revision: April 25, 2023
Scope
005650-000000-0000001 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:
a) Compressed Gas Association, CGA G-2.1.
b) Liquefied Petroleum Gas Code, NFPA 58.
c) 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.
Summary of Topics s0565_6_sum.htmlSummary of Topics
This revision of ANSI/UL 565 is being issued to reflect the following:
1. Revisions to the 10-day moist ammonia-air stress cracking test
Back to Standard 565, Edition 6