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Standard 51, Edition 10

Standard for Power-Operated Pumps and Bypass Valves for Anhydrous Ammonia, LP-Gas, and Propylene

UL CSDS Proposal
Standard 51, Edition 10 Edition Date: August 09, 2013
Summary of Topics b0051_10_20130809_sum.html

Subject 51

Bulletin Dated: August 9, 2013


The following changes in requirements to the Standard for Power-Operated Pumps for Anhydrous Ammonia and LP-Gas, UL 51, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Clarification of Test Fluid for Endurance Test, Revised 16.3

2. For Preliminary Review Only: Deletion of Section and Dates from Outside Standard References, Revised 21.3 and 22.3.1

3. For Preliminary Review Only: Reorganization of the Manufacturing and Production Tests, Revised 24.1

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