Historical

UL 1861 Ed. 4-2015

Outline of Investigation for Power-Operated Chemical Pumps - Published Date: October 15, 2015

This fourth issue of the Outline of Investigation for Power-Operated Chemical Pumps, UL 1861, is being issued to revise the Moist Ammonia Air Stress Cracking Test and to add an exception and marking requirement for pumps not provided with motor protection.

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Underwriters Laboratories [ul]

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