1.1 该闪点测试方法是一种动态方法，取决于确定的升温速率。这是许多可用的闪点测试方法之一，每种闪点测试方法，包括这一种，都是一种经验方法。 注1: 闪点值不是测试材料的恒定物理化学性质。它们是仪器设计、所用仪器的条件和执行的操作程序的函数。因此，闪点只能根据标准试验方法来定义，并且不能保证通过不同试验方法或使用不同于规定的试验设备获得的结果之间存在普遍有效的相关性。 1.2 本试验方法包括通过连续闭杯测试仪测定燃油、润滑油、溶剂和其他液体的闪点。 在1 mL的试样上进行测量。 1.3 本试验方法使用封闭但未密封的杯子，将空气注入试验箱。 1.4 本试验方法适用于测试闪点为10℃的样品 °C至250 °C。 注2: 闪点测定值低于10 °C及以上250 °C可执行；然而，在低于和高于这些温度时，尚未确定精度。 1.5 如果用户规范要求本试验方法以外的定义闪点方法，则在未获得比较数据和说明符同意的情况下，不得用本试验方法或任何其他方法代替规定方法。 1.6 以国际单位制表示的数值应视为标准值。 本标准不包括其他计量单位。温度单位为摄氏度，压力单位为千帕。 1.7 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。 具体的警告声明贯穿整个标准。 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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 闪点温度是测量试样在受控实验室条件下与空气形成易燃混合物的趋势的一种方法。这只是评估材料整体易燃性危险时必须考虑的众多特性之一。 5.2 运输和安全法规中使用闪点来定义 易燃的 和 易燃的 并对其进行分类。这一定义可能因法规而异。有关这些分类的精确定义，请参阅相关的特定法规。 5.3 本试验方法可用于测量和描述受控实验室条件下材料对热和点火源的响应特性，不得用于描述或评估实际火灾条件下材料的火灾危险或火灾风险。 然而，本试验方法的结果可作为火灾风险评估的要素，该评估考虑了与特定最终用途火灾危险评估相关的所有因素。 5.4 闪点还可以表示相对不挥发或不可燃材料中可能存在高挥发性和易燃材料，例如少量柴油或汽油污染润滑油。

1.1 This flash point test method is a dynamic method and depends on definite rates of temperature increase. It is one of the many flash point test methods available, and every flash point test method, including this one, is an empirical method. Note 1: Flash point values are not a constant physical-chemical property of materials tested. They are a function of the apparatus design, the condition of the apparatus used, and the operational procedure carried out. Flash point can therefore only be defined in terms of a standard test method, and no general valid correlation can be guaranteed between results obtained by different test methods or with test apparatus different from that specified. 1.2 This test method covers the determination of the flash point of fuel oils, lube oils, solvents, and other liquids by a continuously closed cup tester. The measurement is made on a test specimen of 1 mL. 1.3 This test method utilizes a closed but unsealed cup with air injected into the test chamber. 1.4 This test method is suitable for testing samples with a flash point from 10 °C to 250 °C. Note 2: Flash point determinations below 10 °C and above 250 °C can be performed; however, the precision has not been determined below and above these temperatures. 1.5 If the user's specification requires a defined flash point method other than this test method, neither this test method nor any other method should be substituted for the prescribed method without obtaining comparative data and an agreement from the specifier. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. Temperatures are in degrees Celsius, and pressure is in kilo-pascals. 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. Specific warning statements appear throughout the standard. 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 The flash point temperature is one measure of the tendency of the test specimen to form a flammable mixture with air 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 material. 5.2 Flash point is used in shipping and safety regulations to define flammable and combustible materials and classify them. This definition may vary from regulation to regulation. Consult the particular regulation involved for precise definitions of these classifications. 5.3 This test method can be used to measure and describe the properties of materials in response to heat and an ignition source under controlled laboratory conditions and shall not be used to describe or appraise the fire hazard or fire risk of materials under actual fire conditions. However, results of this test method may be used as elements of a fire risk assessment, which takes into account all of the factors that are pertinent to an assessment of the fire hazard of a particular end use. 5.4 Flash point can also indicate the possible presence of highly volatile and flammable materials in a relatively nonvolatile or nonflammable material, such as the contamination of lubricating oils by small amounts of diesel fuel or gasoline.