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Status : Active
Standard Type : Main
Document No : ISO 19822:2018
Document Year : 2018
Pages : 16
Edition : 1
Section Volume : Fertilizers and soil conditioners (ISO/TC 134.)
This document specifies the procedure for the analysis of humic acids and hydrophobic fulvic acids which is applicable to dry and liquid materials used as ingredients in commercial fertilizers, soil amendments, and geological deposits.