1.1 本试验方法包括测定石油蜡的滴熔点。它主要用于矿脂和其他微晶蜡。 注1: 用于石油蜡的其他方法为试验方法 D87 和试验方法 D938 . 根据使用的方法，获得的结果可能会有所不同。药用矿脂的试验方法 D127 通常使用。 1.1.1 试验方法A- 蜡的滴点用玻璃汞温度计测定，如下表所示 6.3 . ( 警告- 许多监管机构已将汞指定为一种危险物质，可导致严重的医疗问题。 汞或其蒸汽已被证明对健康有害，并对材料具有腐蚀性。处理汞和含汞产品时要小心。有关更多信息，请参阅适用的产品安全数据表（SDS）。当地或国家法律禁止销售汞或含汞产品，或两者兼有。用户必须确定其所在地销售的合法性。） 1.1.2 试验方法B- 蜡的滴点在仪器的滴点杯中测定，该仪器用铂温度计而不是水银来检测蜡滴并以电子方式测量温度。 汞被认为是一种毒物和健康危害。从实验室中去除汞是一种使测量过程更本质安全的方法。仪器滴点法产生的结果与原始测试方法确定的结果接近 D127 ，方法A。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 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。 1.4 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 熔点是大多数蜡消费者感兴趣的蜡特性。它可以指示蜡的性能。滴熔点试验方法 D127 ，通常用于测量矿脂和其他高粘度石油蜡的熔融特性。

1.1 This test method covers the determination of the drop melting point of petroleum wax. It is used primarily for petrolatums and other microcrystalline wax. Note 1: Additional methods used for petroleum waxes are Test Method D87 and Test Method D938 . Results obtained may differ, depending on the method used. For pharmaceutical petrolatum, Test Method D127 usually is used. 1.1.1 Test Method A— The dropping point of wax is determined with a mercury in glass thermometer, as stated below in 6.3 . ( Warning— Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use Caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.) 1.1.2 Test Method B— The dropping point of wax determined in a dropping point cup in an instrument which detects the drop and measures the temperature electronically, with a platinum thermometer instead of with mercury. Mercury has been recognized as a poison and a health hazard. Removing mercury from laboratories is a way of making the measuring process more inherently safe. The instrumental dropping point method has shown to produce results that are close to those determined by the original Test Method D127 , Method A. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 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. 1.4 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 Melting point is a wax property that is of interest to most wax consumers. It can be an indication of the performance properties of the wax. Drop melting point, Test Method D127 , is often used to measure the melting characteristics of petrolatums and other high viscosity petroleum waxes.