Summary of Topics b1331_1_20050630_sum.htmlSubject 1331
Bulletin Dated: June 30, 2005
SUMMARY OF TOPICS
The following are changes in requirements to the proposed First Edition of UL 1331 from UL's Subject 1331 bulletin dated September 3, 2004:
1. Scope - Add paragraph 1.2 to clarify the scope of the standard.
2. Glossary Terms - Add new terms to the Glossary.
3. Secondary Valve - Revise paragraph 4.3 to add provision for optional secondary valve.
4. Assembly - Delete paragraph 4.8 since requirement is out of date.
5. Connections - Revise paragraph 4.12 to prohibit flared and compression-type connections.
6. Hydrostatic Strength Test - Clarify samples used for this test.
7. Performance, General - Clarify performance requirements.
8. Station Inlets and Outlets for Manufactured Assemblies - Addition of several tests to address station inlets and outlets for manufactured assemblies.
9. Editorial Revisions - Revisions to paragraphs 4.4, 4.10, 4.11, 8.3, and 8.4 to clarify the requirements.
COMMENTS DUE: AUGUST 30, 2005