Summary of Topics s331A_1_sum.htmlSummary of Topics
This revision of ANSI/UL 331A dated October 1, 2020 includes the following changes in requirements:
– Revisions to 10-Day Moist Ammonia-Air Stress Cracking Test; Section 15
– Clarifications to the Deformation Test; 12.2, 12.5, and 12.6
– Revisions to add CE40a test fluid requirements; 6.1.1.1, 6.1.3.1, 10.3, 11.1.1, 11.2.4, 17.1, and Supplement SA