1.1本规程是对本规程的补充 E177 ，以便为编制与某些建筑材料相关的ASTM试验方法的精度和偏差声明提供指导（注1）。包括精度和偏差声明的推荐形式。还讨论了这些声明的目的和意义，以供这些测试方法的用户使用。 笔记 1-尽管受C09委员会管辖，但该实践是由C01、D04和C09委员会共同制定的，并已得到所有三个委员会的认可。 随后被D18委员会采用。

1.1 This practice supplements Practice E177 , in order to provide guidance in preparing precision and bias statements for ASTM test methods pertaining to certain construction materials (Note 1). Recommended forms for precision and bias statements are included. A discussion of the purpose and significance of these statements for the users of those test methods is also provided. Note 1—Although under the jurisdiction of Committee C09, this practice was developed jointly by Committees C01, D04, and C09, and has been endorsed by all three committees. It has subsequently been adopted for use by Committee D18.