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gbt 4920 1985
gbt 4920 1985, Total:2 items.
In the international standard classification, gbt 4920 1985 involves: Air quality.
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, gbt 4920 1985
- GB/T 4920-1985 Determination of sulphuric acid mist in tail gas in sulphuric acid concentration process--Barium chromate colorimetric method
中华人民共和国环境保护部, gbt 4920 1985
- GB 4920-1985 Determination of sulphuric acid mist in tail gas in sulphuric acid concentration process-Barium chromate colorimetric method