标题: Standard Test Method for pH of Soils [打印本页] 作者: info 时间: 2013-3-13 23:21 标题: Standard Test Method for pH of Soils 华为网盘附件：
Standard Test Method for
pH of Soils1
This standard is issued under the fixed designation D4972; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.