1 Scope
This standard specifies test methods for determination of content and pH of water insoluble matter in water-soluble fertilizers.
This standard is applicable to the determination of content and pH of water insoluble matter in liquid or solid water-soluble fertilizers.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the dated versions are applicable to this Standard. For undated references, the latest edition of the normative document (include all the amendments) is applicable to this Standard.
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgment of Limiting Values
HG/T 2843 Chemical Fertilizer Products Standard Volumetric, Standard, Reagent and Indicator Solutions for Chemical Analysis
NY/T 887 Density Testing of Liquid Fertilizer
3 Determination of Water Insoluble Matter Content
Foreword I
1 Scope
2 Normative References
3 Determination of Water Insoluble Matter Content
4 pH Determination
