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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 20475.5-2020 |
Classification for content of harmful elements in coal--Part 5: Fluorine 煤中有害元素含量分级 第5部分：氟 |
China National Standards Classification content harmful |
 English PDF |
| GB/T 20475.4-2012 |
Classification for content of harmful elements in coal - Part 4：Mercury 煤中有害元素含量分级 第4部分：汞 |
China National Standards Classification content harmful |
English PDF |
| GB/T 20475.3-2012 |
Classification for content of harmful elements in coal - Part 3：Arsenic 煤中有害元素含量分级 第3部分：砷 |
China National Standards Classification content harmful |
English PDF |
| GB/T 20475.2-2006 |
Classification for content of harmful elements in coal - Part 2：chlorine 煤中有害元素含量分级 第2部分：氯 |
China National Standards Classification content harmful |
English PDF |
| GB/T 20475.1-2006 |
Classification for content of harmful elements in coal - Part 1：phosphorus 煤中有害元素含量分级 第1部分：磷 |
China National Standards Classification content harmful |
English PDF |
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