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NY/T 1971-2010 English PDF (NYT1971-2010)

NY/T 1971-2010 English PDF (NYT1971-2010)

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NY/T 1971-2010: Water-soluble fertilizers - Determination of humic-acids content
This standard specifies the test method for the determination of humic-acid content, in water-soluble fertilizers, by redox titration after acid precipitation. This standard applies to the determination of humic-acid content in liquid or solid water-soluble fertilizers.

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