Summary of Topics

This revision of ANSI/UL 920001 dated June 14, 2021 is being issued to update the title page to reflect the most recent designation as a Reaffirmed American National Standard (ANS). No technical changes have been made.

Adoption of ANSI/ISA 920001, Standard for Performance Requirements for Toxic Gas Detectors as ANSI/UL 920001. 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.