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UL 80079-20-1 Ed. 1-2020

Standard for Explosive Atmospheres - Part 20-1: Material Characteristics for Gas and Vapour Classification - Test Methods and Data - Published Date: September 11, 2024

This First Edition of ANSI/UL 80079-20-1, the Standard for Explosive Atmospheres–Part 20-1: Material Characteristics for Gas and Vapour Classification–Test Methods and Data, is an adoption of ISO/IEC 80079-20-1 (first edition, issued by ISO/IEC December 2017) and Corrigendum 1 (issued 2018). UL 80079-20-1 is an IEC-based UL standard with US Differences. The new requirements are substantially in accordance with Proposal(s)on this subject dated December 6, 2019 and February 21, 2020.

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