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Standard 971, Edition 2

Standard for Nonmetallic Underground Piping For Flammable Liquids

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Standard 971, Edition 2 Edition Date: September 19, 2008 $0.00
Summary of Topics b0971_2_20080919_sum.html

Subject 971

Bulletin Dated: September 19, 2008


The following changes in requirements are being proposed for the Standard for Nonmetallic Underground Piping for Flammable Liquids, UL 971:

1. New Second Edition of UL 971 with changes including, but not limited to the following: a) Revised permeation test, b) New fitting permeation, abrasion preconditioning, delamination, and mechanical erosion tests, c) New test fuel battery for the Long-Term Compatibility Test, d) New short term protective barrier requirements, and e) Clarifications, editorial, and formatting changes

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