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UL 920401 Ed. 1-2007
Performance Requirements for Instruments Used to Detect Oxygen-Deficient/Oxygen-Enriched Atmospheres - Published Date: March 15, 2022
Adoption of ANSI/ISA-92.04.01, Part 1-2007 (R2013), Standard for Performance Requirements for Instruments Used to Detect Oxygen-Deficient/Oxygen-Enriched Atmospheres as ANSI/UL 920401. This Standard is being issued to update the title page to reflect the reaffirmation of its ANSI approval. No changes in requirements have been made. As noted in the Commitment of Amendments statement located on the back side of the title page, UL and ISA are committed to updating this co-designated standard jointly after processing according to the standards development procedures by UL. Please note that as this is a simple reaffirmation of an existing ISA standard. These requirements are substantially in accordance with Proposal(s) on this subject dated August 25, 2017.
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