| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB 1880-1980 | English | 199 |
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Days<=2
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Analysis of the sulfur trioxide content in phosphorus concentrates and phosphorus minerals
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GB 1880-1980
| Obsolete |
GB 1880-1980
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