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Standard Insuued on: 1989-12 |
Category No.: | GB | Valid Status: | superseded |
Issued Organization: | State Environmental Protection Administration | Issued Date: | 1989-12-25 |
Implemented Date: | 1990-7-1 | Abolished Date: | |
Superseded Standard.: | HJ 585-2010 Water quality-Determination of free chlorine and total chlorine-Titrimetric method using N,N-diethyl-l,4-phenylenediamine |
Superseded Date: | 2010-12-1 |
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