本文件规定: -滚动轴承润滑脂噪声测试的基本原理、测试组件和测试机； -测试方法BQ+、MQ和NQ中使用的符号。 本文件适用于测试滚动轴承润滑脂，尤其是未使用的润滑脂。 注:合适的润滑脂是根据DIN 51818[6]的NLGI等级1至3的润滑脂。用于润滑滚动轴承的合适润滑脂尤其是根据ISO 12924的润滑脂。根据本文件的测试方法为滚动轴承提供了有意义的结果；然而，它也可以应用于类似应用中的润滑脂[12][13]。

This document specifies: — basic principles, testing assembly and the test machine for noise testing of rolling bearing greases; — symbols used in the test methods BQ+, MQ and NQ. This document is applicable for testing rolling bearing greases, especially of unused grease. NOTE Suitable greases are greases of NLGI classes 1 to 3 according to DIN 51818^[6]. Suitable greases for lubrication of rolling bearings are especially greases according to ISO 12924. The test method according to this document delivers meaningful results for rolling bearings; however, it can also be applied for greases in similar applications^[12][13].