1.1 本标准规定了根据试验方法测定试样炉暴露均匀性的一般原则 E119 , E814 , E1529 , E1725 , E1966 ，和 E2336 . 1.2 本规范规定了用于为测量熔炉暴露的仪器提供安装表面的标准化试样的材料和结构要求。 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SI单位表示的值应被视为标准。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和火焰的响应，但其本身并不包含在实际火灾条件下对材料、产品或组件进行火灾危险或火灾风险评估所需的所有因素。1.6 火灾测试本质上是危险的。在进行这些试验时，应对人员和财产采取充分的安全措施。 1.7 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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 本实施规程描述了收集数据的程序，这些数据旨在测量试验方法中描述的火灾试验方法的试样暴露条件的均匀性 E119 , E814 , E1529 , E1725 , E1966 ，和 E2336 从熔炉收集的数据旨在形成参考标准中描述的熔炉性能要求的基础。 5.2 本惯例不包括对熔炉性能的要求。 5.3 在该程序中，标准化测试样本经受一组或多组特定的实验室测试条件。如果替代了不同的试验条件或改变了最终使用条件，则并不总是能够通过该程序或根据该程序预测所测量的火灾试验响应特性的变化。因此，结果仅对本程序中描述的火灾试验暴露条件有效。 5.4 提请所有与进行这种做法有关的人员注意这样一个事实，即火灾测试是危险的，并且在测试过程中有可能产生有害的烟雾和气体。在测试样本的构建和测试残留物的处置过程中，也有可能产生机械和操作危害。应对所有潜在危害和健康风险进行评估，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。实验室人员应确保始终遵循书面安全说明。

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.