ASTM C 813-1990（2004）使用接触角测量法对玻璃表面疏水污染物进行检测的标准试验方法
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This standard is issued under the fixed designation C813; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (ε) indicates an editorial change since the last revision or reapproval.
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