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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| HJ 649-2013 |
Soil. Determination of exchangeable acidity by potassium chloride extraction. Titration method 土壤 可交换酸度的测定 氯化钾提取-滴定法 |
China Environmental Protection Industry
Standards exchangeable |
 English PDF |
| HJ 631-2011 |
Soil. Determination of exchangeable acidity by barium chloride extraction-titration method 土壤 可交换酸度的测定 氯化钡提取-滴定法 |
China Environmental Protection Industry
Standards exchangeable |
English PDF |
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