UL 1478 BULLETIN-2007《消防泵减压阀的UL安全标准》

The following topics were discussed at the meeting:
1. New Proposals for UL 246, Standard for Hydrants for Fire-Protection Service –
Revision of Hose Cap Requirements, Section 16
2. New Proposals for UL 246, Standard for Hydrants for Fire-Protection Service –
Revision of Test Pressure Specifications in the Strength of Body Test, Section 24
3. New Proposals for UL 260, Standard for Dry Pipe and Deluge Valves for Fire-Protection
Service – Revision of Water Pressure Specifications in the Operation Tests, Section 26
4. New Proposals for UL 262, Standard for Gate Valves for Fire-Protection Service –
Clarification of Test Results in the Impact Test, Section 20.7
5. New Proposals for UL 262, Standard for Gate Valves for Fire-Protection Service –
Revision of the Hydrostatic Pressure Specified in the Leakage Test, Section 24
6. New Proposals for UL 262, Standard for Gate Valves for Fire-Protection Service –
Revision of the Hydrostatic Pressure Specified in the Manufacturing and Production