1.1 该试验方法包括通过测量标准针的穿透程度对石油蜡稠度的经验估计。该试验方法适用于渗透度不大于250的蜡。 注1: 该试验方法类似于测定沥青材料渗透性的针法，试验方法 D5 .试验方法中描述了适用于润滑脂和矿脂的锥形法 D217 和试验方法 D937 分别地 1.2 警告 --汞已被许多监管机构指定为一种可能导致严重医疗问题的危险物质。汞或其蒸汽已被证明对健康有害，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）。当地或国家法律有可能禁止销售汞或含汞产品，或两者兼而有之。用户必须确定在其所在地销售的合法性。 1.3 以国际单位制表示的数值应视为标准。 1.3.1 例外 括号中给出的值仅供参考。 1.4 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。 1.5 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 石油蜡的硬度不同。针入度是对硬度的测量。硬度可能对其他物理特性有显著影响。

1.1 This test method covers the empirical estimation of the consistency of waxes derived from petroleum by measurement of the extent of penetration of a standard needle. This test method is applicable to waxes having a penetration of not greater than 250. Note 1: This test method is similar to the needle method for determining the penetration of bituminous material, Test Method D5 . Cone methods applicable to greases and to petrolatum are described in Test Methods D217 and Test Method D937 , respectively. 1.2 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. 1.3 The values stated in SI units are to be regarded as the standard. 1.3.1 Exception— The values given in parentheses are for information only. 1.4 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. 1.5 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 Petroleum waxes differ in hardness. Needle penetration is a measurement of hardness. Hardness may have a significant effect upon other physical properties.