1.1这些试验方法包括通过穿透规定尺寸、质量和光洁度的圆锥体来测量润滑脂稠度的四个程序。贯入度的测量单位为十分之一毫米。 注1-国家润滑脂研究所 （NLGI）根据工作渗透测量的稠度对润滑脂进行分类。分类系统如下:NLGI稠度数工作穿透范围，25°C（77°F）000 00 0 1 2 3 4 5 6 445至475 400至430 355至385 310至340 265至295 220至250 175至205 130至160 85至115 1.1.1未加工、加工和延长加工渗透的程序适用于渗透度在85到475之间的润滑脂，即稠度值在NLGI 6和NLGI 000之间的润滑脂。X1中所述的原状贯入试验类似于未加工贯入试验。 1.1.2块渗透程序适用于足够硬以保持其形状的润滑脂。这种润滑脂的渗透性通常低于85/10毫米。 1.2四种程序均不适用于通过渗透测量矿脂的稠度。 此类产品应使用试验方法D937。 1.3这些试验方法中描述的设备尺寸以英寸和英寸分数表示。之所以保留这些单位，是因为使用所示尺寸的设备获得了大量数据。每个图都提供了公制等效表。温度和其他尺寸以首选国际单位制给出；括号中所示的值仅供参考。 1.4本标准无意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和健康实践，并确定监管限制的适用性。

1.1 These test methods cover four procedures for measuring the consistency of lubricating greases by the penetration of a cone of specified dimensions, mass, and finish. The penetration is measured in tenths of a millimetre. Note 1-The National Lubricating Grease Institute (NLGI) classified greases according to their consistency as measured by the worked penetration. The classification system is as follows: NLGI Consistency Number Worked Penetration Range, 25°C (77°F) 000 00 0 1 2 3 4 5 6 445 to 475 400 to 430 355 to 385 310 to 340 265 to 295 220 to 250 175 to 205 130 to 160 85 to 115 1.1.1 The procedures for unworked, worked, and prolonged worked penetration are applicable to greases having penetrations between 85 and 475, that is, to greases with consistency numbers between NLGI 6 and NLGI 000. An undisturbed penetration test, described in X1, is similar to the unworked penetration test. 1.1.2 The block penetration procedure is applicable to greases that are sufficiently hard to hold their shape. Such greases usually have penetrations below eighty-five tenths of a millimetre. 1.2 None of the four procedures is considered suitable for the measurement of the consistency of petrolatums by penetration. Test Method D937 should be used for such products. 1.3 The dimensions of the equipment described in these test methods are given in inches and fractions of an inch. These units were retained because a vast body of data has been obtained using equipment with the dimensions shown. Metric equivalency tables are provided with each figure. Temperatures and other dimensions are given in the preferred SI units; the values shown in parentheses are provided for information. 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 and health practices and determine the applicability of regulatory limitations prior to use.