GB/T 3598-1983
Abolished
GB/T 34766-2017
Active
National standards
GB/T 34766-2017 Determination of total humic acid content from mineral source
GB/T 34766-2017 Determination of total humic acid content from mineral source
Basic Information
Standard Code:
GB/T 34766-2017
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Fertilizers and pesticides
ICS Name:
Fertilizer
Publish Date:
2017-11-01
Implement Date:
2018-05-01
Pages:
6 pages
Scope
This standard specifies the method for determining the total humic acid in mineral sources. This standard is applicable to the determination of the total humic acid content in humic acid raw materials from mineral sources such as weathered coal, lignite, and peat, as well as solid fertilizers containing humic acid from mineral sources. The results are expressed in terms of carbon content.
Development Information
Referenced Standards
Related Standards
GB 8569-1997
Replaced
GB 8569-1997 Packing of solid chemical fertilizers
GB/T 8570.1-1988
Replaced
GB/T 8570.1-1988 Liquefied anhydrous ammonia—Taking a laboratory sample
GB/T 8570.2-1988
Replaced
GB/T 8570.2-1988 Liquefied anhydrous ammonia—Estimating of ammonia content
GB/T 8570.3-1988
Replaced
GB/T 8570.3-1988 Liquefied anhydrous ammonia—Determination of residue content—Gravimetric method
GB/T 8570.4-1988
Replaced