UL 1887：塑料噴水管的可見火焰和煙霧性能的防火測試
UL 1887：Standard for Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics
Abstract 摘要
This is a test method for determining values of flame propagation distance and optical smoke density for plastic sprinkler pipe that is to be installed in ducts, plenums, and other spaces used for environmental air. This test method does not cover the construction requirements for sprinkler pipe for pressure or other performance requirements.
