| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/Z 42520-2023 | English | 519 |
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Guidelines for X-ray fluorescence spectrometric laboratory practice for the analysis of iron ores
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GB/Z 42520-2023
| Valid |
GB/Z 42520-2023
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