The following are proposed requirements for UL 203: 1. Revision of Definitions of Terms in Glossary; 2. Removal of References to "Standard" and "Special" from Paragraphs 5.13 and 6.1; 3. Addition of Requirements for NPS Designation for Pipe Sizes; 4. Addition of Requirements for Retainer Straps for Beam Clamps; 5. Addition of Requirements for Surge Devices; 6. Revision of Figure 5.1; 7. Addition of Requirements for Pipe Hangers for CPVC Piping; 8. Clarification of Requirements for Protective Coatings; 9. Revision of Vibration Test; 10. Revision of Marking Requirements; and 11. Clarification of Installation Instruction Requirements
ANSI/UL 203-2010 history
2010ANSI/UL 203-2010 Standard for Safety for Pipe Hanger Equipment for Fire Protection Service