UL Standard for Safety for Explosive Atmospheres – Part 29-1: Gas Detectors – Performance Requirements of Detectors for Flammable Gases (COMMENTS DUE: APRIL 1@ 2019)
NOTE FROM STP PROJECT MANAGER: Entire Clause 1 not provided as the changes were to paragraph 7 only as shown below. 1DV DR Modification of Clause 1@ seventh paragraph to replace with the following: This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0@ the requirement precedence.