1.1本标准为耐火试验响应标准。 1.2本试验方法包括一个小规模程序，用于表征塑料对由施加在垂直位置的标准样品底部的受控强度小火焰组成的点火源的响应。 1.3本标准应用于测量和描述材料、产品或组件在受控条件下对热量和火焰的反应，而不应用于描述或评估材料、产品或组件在实际火灾条件下的火灾危险或火灾风险。 然而，该测试结果可用于火灾危险评估或火灾风险评估，该评估考虑了与特定最终用途的火灾危险或火灾风险评估相关的所有因素。 1.4以国际单位制表示的数值应视为标准。 注1-见方法D3801，除非另有规定，否则在垂直位置测试时，使用相同的试样测量固体塑料的比较灭火特性。 1.5本标准无意解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。10.1中给出了具体的危险说明。 注2-没有类似或等效的ISO标准。

1.1 This is a fire-test-response standard. 1.2 This test method covers a small-scale procedure for characterizing the response of a plastic to an ignition source consisting of a small flame of controlled intensity applied to the base of a standard sample being held in a vertical position. 1.3 This standard should be used to measure and describe the reponse of materials, products, or assemblies to heat and flame under controlled conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used in a fire hazard assessment or a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard or fire risk of a particular end use. 1.4 The values stated in SI units are to be regarded as the standard. Note 1-See Method D3801 which, unless otherwise specified, uses the same specimens for measuring the comparative extinguishing characteristics of solid plastics when tested in a vertical position. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in 10.1. Note 2-There is no similar or equivalent ISO standard.