1.1 本试验方法涵盖了通过测量标准针的穿透程度对源自石油的蜡的稠度的经验估计。本试验方法适用于渗透率不大于250的蜡。 附注1: 本试验方法与测定沥青材料针入度的针法相似，试验方法 D5 适用于润滑脂和凡士林的锥形方法在测试方法中描述 D217 和试验方法 D937 ，分别。 1.2 警告 -汞已被许多监管机构指定为可能导致严重医疗问题的有害物质。汞或其蒸气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，请参见适用的产品安全数据表（SDS）。地方或国家法律可能禁止销售汞或含汞产品或两者兼而有之。用户必须确定其所在地销售的合法性。 1.3 以SI单位表示的值应被视为标准。 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。 1.5 本国际标准是根据世界贸易组织技术律师协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贸易（TBT）委员会。 ======意义和用途====== 5.1 石油蜡的硬度不同。针穿透是硬度的测量。硬度可能对其他物理性质有显著影响。

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.