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gb11900

gb11900, Total:2 items.

In the international standard classification, gb11900 involves: Water quality.

中华人民共和国环境保护部, gb11900

• GB 11900-1989 Water quality-Determination of trace amounts of arsenic-Spectrophotometric method with silver salt

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, gb11900

• GB/T 11900-1989 Water quality--Determination of trace amounts of arsenic--Spectrophotometric method with silver salt

Others:   gb11900.