UL 103 BULLETINS-2005《CSDS 10/26/05 (8p); CSDS 06/17/05 (58p)》
The following changes in requirements are being proposed: 1. Casing seals for positive pressure chimneys. 2. Expansion of positive pressure test to all chimney assembly components. 3. References to outside documents. 4. Clarification of Scope regarding the 1700 and 2100 degree temperature tests. 5. Clarification of Scope regarding enclosed and unenclosed installations. 6. Wire size designation.