美标NFPA270使用锥型辐射源测量燃烧后的烟密度，NFPA270通过收集燃烧后各种气体来进行烟密度测试，南京睿督公司专业提供NFPA270,ASTM E1995，ASTM E662,ISO5659-2等标准烟密度及毒性测试，咨询电话：025-8658 3475。  

NFPA270烟密度测试标准－标准名称

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
NFPA 270 Standard test method for measurement of smoke obscuration using a conical radiant source in a single closed chamber

NFPA270烟密度测试标准-适用范围

This test method shall provide a means of measuring smoke obscuration resulting from subjecting essentially flat materials, products, or assemblies (including surface finishes) not exceeding 25 mm in thickness, to specified levels of thermal irradiance from a conical heater, in a single closed chamber, in the absence or presence of a pilot flame, and when placed in a horizontal orientation.

NFPA270烟密度测试方法-参考标准

ASTM E662 Standard test method for specific optical density of smoke generated by solid materials
NFPA 270 Standard Method of Test for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber
ISO 5659-2 Plastics-Smoke generation-Part 2: Determination of optical density by a single chamber test
ASTM E1995 Standard Test Method for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber, With the Test Specimen Oriented Horizontally

ASTM E162表面燃烧性能测试 http://www.fire-test.com/teststandard/usa/3346.html
ASTM E662烟密度测试         http://www.fire-test.com/teststandard/usa/3347.html
BSS 7239毒性测试    http://www.fire-test.com/teststandard/usa/3351.html 

更多关于ASTM E1317材料表面火焰蔓延测试，请咨询南京睿督公司
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