1.1本规程是对规程E 177的补充，旨在为与某些建筑材料有关的ASTM试验方法的精度和偏差声明的编制提供指导（注0）。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。 注1-尽管这一做法受C-9委员会管辖，但它是由C-1、D-4和C-9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D-18委员会采用。

1.1 This practice supplements Practice E 177, in order to provide guidance in preparing precision and bias statements for ASTM test methods pertaining to certain construction materials (Note 0). 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 C-9, this practice was developed jointly by Committees C-1, D-4, and C-9, and has been endorsed by all three committees. It has subsequently been adopted for use by Committee D-18.