| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 11898-1989 | English | 279 |
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Days<=3
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Water quality--Determinatoin of free chlorine and total chlorine--Spectrophotometric method useing N, N-diethyl-1, 4 phenylenediamine
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GB/T 11898-1989
| Obsolete |
GB/T 11898-1989
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