Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
HJ 496-2009 |
Classification and nomenclature for environmental engineering technology 环境工程技术分类与命名 |
China Environmental Protection Industry
Standards Classification nomenclature environmental |
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HJ/T 12-1996 |
Classification and nomenclature for environmental protection instruments 环境保护仪器分类与命名 |
China Environmental Protection Industry
Standards Classification nomenclature environmental |
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