According to the Notice on Development and Revision of the First Batch of Energy Industry Standards in 2009 (GNKJ (2009) No. 163) issued by the National Energy Administration of the People's Republic of China.
In preparing this code,the drafiing staff made wide investigations,research,and data collection,reviewed the test methods and data concerning density and moisture measurement by nuclear methods used in China and abroad,and incorporated into this code the latest research findings on nuclear densitometer gauges.
This code covers the technical requirements for nuclear densitometer gauges,testing,standard count,gauge calibration,in-place test procedure,as well as safety protective measures.
In this code,the sub clauses in bold are comp ... 目录:
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