| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB 1520-1979 | English | 199 |
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Methods for determination of cobalt, nickel and copper contents in manganese ores--Atomic absorption spectrophotometric method
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GB 1520-1979
| Obsolete |
GB 1520-1979
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