本推荐规程源自OEM和tier-1实验室试验，适用于两轴多用途乘用车，或GVWR大于4536 kg（10000 lb）且配有液压盘式或鼓式行车制动器的载重汽车。在对特定尺寸的制动器或在特定试验条件下进行试验之前，与试验请求者审查、商定并记录与试验程序的任何偏差。此外，最终试验结果和磨损率的适用标准被视为显著不同，需要定义、评估和适当的文件；尤其是因为这将决定是否需要方法B测试。本推荐规程不评估或量化其他制动系统特性，如性能、噪音、抖动、ABS性能或极端温度或速度下的制动。 最低性能要求不属于本推荐规程的一部分。与磨损率和磨损行为相关的最低要求的一致性和合格/不合格裕度可作为项目的一部分，与测试请求者协调进行评估。注:本推荐规程使用NIST特别出版物811中的单位转换和舍入技术。这是为了确保使用标准转换系数，并确定适当的有效位数，以确保转换单位的舍入误差（RE）小于或类似于原始英制或英制单位的RE。

This Recommended Practice is derived from OEM and tier-1 laboratory tests and applies to two-axle multipurpose passenger vehicles, or trucks with a GVWR above 4536 kg (10 000 pounds) equipped with hydraulic disc or drum service brakes. Before conducting testing for a specific brake sizes or under specific test conditions, review, agree upon, and document with the test requestor any deviations from the test procedure. Also, the applicable criteria for the final test results and wear rates deemed as significantly different require definition, assessment, and proper documentation; especially as this will determine whether or not Method B testing is needed.This Recommended Practice does not evaluate or quantify other brake system characteristics such as performance, noise, judder, ABS performance, or braking under extreme temperatures or speeds. Minimum performance requirements are not part of this recommended practice. Consistency and margin of pass/fail of the minimum requirements related to wear rates and wear behavior can be assessed as part of the project in coordination with the test requestor.NOTE: This Recommended Practice uses the unit conversion and rounding techniques from the NIST Special Publication 811. This to ensure the use of standard conversion factors and to determine the appropriate number of significant digits to ensure the Rounding Error (RE) of the converted unit is smaller than or similar to the RE of the original English or Imperial unit.