UL 1626A BULLETIN-2007 斜度不超过8/12的光滑、平整、倾斜天花板用住宅洒水器防火试验UL安全性标准.本公告宣布了第1626A号大纲的可用性。
UL STANDARD FOR SAFETY FIRE TESTING OF RESIDENTIAL SPRINKLERS FOR USE WITH SMOOTH, FLAT, SLOPED CEILINGS HAVING PITCHES NOT EXCEEDING 8/12 This bulletin announces the availability of the Outline 1626A.
This Fourth Edition includes the following proposals: a) Revision to Scope of Standard to Reference New Sprinkler Technology; b) Revisions to Bring Definitions in Closer Alignment With Other Standards, c) Additional Requirement for Design Parameters and Installation Instructions to Reference Whether Recessed or Concealed Sprinklers are Vented; d) Revisions To More Closely Align Text with UL 199, Clarify Requirements And Maintain Consistency With Existing Testing Practices; e) Sprinkler Assembly Load Measurement; f) Fitting Type for Horizontal Surface Water Distribution Test; g) Revision To Heptane Specifications; and h) Revision To Operation - Lodgement Test.