1.1 本试验方法涵盖20至70范围内的有限闪点试验程序 °C，使用手动或自动Pensky-Martens闭杯测试仪测量液体废物。 1.2 本试验方法包含两个程序，适用于液体废物、多相废物的液相、含悬浮固体的液体废物或在试验条件下容易形成表面膜的液体废物。 注1: 如果废液的粘度使子样本体积在试验条件下即使在程序B的搅拌速度增加的情况下也无法均匀加热，则使用较小的- 比例法（试验方法 D8174 用于通过小型闭杯测试仪测定液体废物的有限闪点）。 1.3 程序A适用于无悬浮固体的非粘性液体。程序B适用于粘性液体、含悬浮固体的液体或形成薄膜的液体。 注2: 本试验方法不适用于腐蚀性液体废物（见试验方法 D8174 ). 1.4 单位- 以国际单位制给出的数值应视为标准。 1.5 本标准并非旨在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、健康和环境实践，并确定监管限制的适用性。 警告语句贯穿始终。有关分析中可能使用的认证标准物质（CRM）或二级工作标准（SWS）的信息，请参阅适用的安全数据表（SDS）。如果已知废物样品的某些成分，十二烷基硫酸钠也可能有用。 1.6 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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本程序旨在评估液体废物的可燃性。 5.2 闪点测量受控实验室条件下子样本对施加热量和点火源的响应。这只是在评估液体废物的整体易燃性危险时必须考虑的众多特性之一。 5.3 闪点可以表示在相对不挥发或不易燃的材料中可能存在高挥发性和易燃材料。

1.1 This test method covers the procedure for a finite flash point test, within the range of 20 to 70 °C, of liquid wastes using a manual or automated Pensky-Martens closed cup tester. 1.2 This test method contains two procedures and is applicable to liquid waste, liquid phase(s) of multi-phase waste, liquid waste with suspended solids, or liquid waste that tends to form a surface film under test conditions. Note 1: If the liquid waste is of a viscosity such that the subsample volume will not be uniformly heated under the test conditions even with the increased stir rate of Procedure B, then use the small-scale method (Test Method D8174 for Finite Flash Point Determination of Liquid Wastes by Small-Scale Closed Cup Tester). 1.3 Procedure A is applicable to non-viscous liquids that are without suspended solids. Procedure B is applicable to viscous liquids, liquids with suspended solids, or liquids that form films. Note 2: This test method is not applicable for corrosive liquid wastes (see Test Method D8174 ). 1.4 Units— The values given in SI units are to be regarded as the standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Warning statements appear throughout. Also see applicable Safety Data Sheets (SDS) for information about certified reference materials (CRMs) or secondary working standards (SWSs) that may be used in the analysis. SDS may also be useful if some components of the waste sample are known. 1.6 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 procedure is intended to be used to evaluate the ignitability of liquid wastes. 5.2 Flash point measures the response of the subsample to applied heat and an ignition source under controlled laboratory conditions. It is only one of a number of properties that must be considered in assessing the overall flammability hazard of a liquid waste material. 5.3 Flash point can indicate the possible presence of highly volatile and flammable materials in a relatively nonvolatile or nonflammable material.