NFPA 270 在单一密闭房间使用圆锥型辐射热度量烟模糊度标准试验方法
日期:2012-02-10 14:50
-response characteristic measurable with this test method shall be the mass optical density, which is the specific optical density of smoke divided by the mass lost by the specimens during the test.
1.1.6 This test method shall be based on ISO 5659-2, Determination of Specific Optical Density by a Single-Chamber Test, and shall provide equivalent results to ISO 5659-2.
1.1.7 The fire-test-response characteristics obtained from this test shall be specific to the specimen tested, in the form and
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