ASTM WK38669(What is a Work Item? / How to Input to a Work Item)Work Item: ASTM WK38669 - Revision of D5255 - 01(2008) Standard Practice for Certification of Personnel Engaged in the Testing of Soil and RockActive Standard: D5255 - 01(2008) Developed by Subcommittee: D18.99 | Committee D18 Home | Contact Staff Manager
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