Historical
UL 920004 Ed. 1-2014
Performance Requirements for Open Path Toxic Gas Detectors - Published Date: January 13, 2022
Adoption of ANSI/ISA-92.00.04-2014, Standard for Performance Requirements for Open Path Toxic Gas Detectors as ANSI/UL 920004. 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 11, 2017.
Underwriters Laboratories [ul]