1.1 本标准提供了根据试验方法测试的试样上熔炉暴露均匀性测量的一般原则 E119 , E814 , E1529 , E1725 , 1966年 和 E2336 . 1.2 本规程规定了标准化试样的材料和结构要求，该试样用于为测量熔炉暴露的仪器提供安装表面。 1.3 仪器记录试样暴露表面附近的温度、压差和氧含量。 1.4 以国际单位制表示的数值应视为标准。括号中给出的单位仅供参考。 1.5 本标准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响应，但其本身并未包含在实际火灾条件下对材料、产品和组件进行火灾危险或火灾风险评估所需的所有因素。 1.6 火灾测试具有内在的危险性。在进行这些试验时，应为人员和财产提供足够的保护。 1.7 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 本实施规程描述了一种收集数据的程序，旨在测量试验方法中所述火灾试验方法试样暴露条件的均匀性 E119 , E814 , E1529 , E1725 , 1966年 和 E2336 从熔炉收集的数据旨在形成参考标准中所述熔炉的性能要求的基础。 5.2 本规程不包括对熔炉性能的要求。 5.3 在本程序中，标准化试样应接受一组或多组特定的实验室试验条件。如果替换了不同的试验条件或改变了最终使用条件，则通过本程序或通过本程序并不总是能够预测火灾的变化- 测量的测试响应特性。因此，该结果仅适用于本程序中所述的火灾试验暴露条件。 5.4 所有与本规程实施相关的人员应注意，火灾试验是危险的，并且试验过程中可能产生有害烟雾和气体。在试样的施工和试验残留物的处理过程中，也有可能产生机械和操作危险。应对所有潜在的健康危害和风险进行评估，并确定和提供安全预防措施。应发布书面安全说明。应向相关人员提供适当的培训。 实验室工作人员应确保始终遵守书面安全说明。

1.1 This standard provides general principles for measuring the uniformity of the furnace exposure on specimens tested in accordance with Test Methods E119 , E814 , E1529 , E1725 , E1966 , and E2336 . 1.2 This practice specifies the materials and the construction requirements for a standardized test specimen used to provide a mounting surface for the instrumentation that measures furnace exposure. 1.3 The instrumentation records temperatures, pressure differentials, and oxygen content near the exposed surface of the test specimen. 1.4 The values stated in SI units are to be regarded as the standard. The units given in parentheses are for information only. 1.5 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 1.6 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. 1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This practice describes a procedure to gather data intended to measure the uniformity of exposure conditions upon test specimens for the fire test methods described in Test Methods E119 , E814 , E1529 , E1725 , E1966 , and E2336 . The collected data from furnaces are intended to form a basis for performance requirements for the furnaces described in the referenced standards. 5.2 This practice does not include requirements for furnace performance. 5.3 In this procedure, the standardized test specimen is subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this procedure to predict changes in the fire-test-response characteristics measured. Therefore, the results are valid only for the fire-test-exposure conditions described in this procedure. 5.4 The attention of all persons connected with the conduct of this practice is drawn to the fact that fire testing is hazardous and that there is a possibility that harmful smoke and gases are developed during the test. There is also a possibility that mechanical and operational hazards develop during the construction of the test specimen and the disposal of the test residues. An assessment of all potential hazards and risks to health shall be made and safety precautions shall be identified and provided. Written safety instructions shall be issued. Appropriate training shall be provided to relevant personnel. Laboratory personnel shall ensure that they follow written safety instructions at all times.