GB/T 20937-2007 (English Version) PDF

Standard No.: GB/T 20937-2007
Language: Chinese, Available in English version
Release Date: 2007
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-12
Replace By: GB/T 20937-2018
Latest: GB/T 20937-2018

Scope: This standard specifies the requirements, test methods, inspection rules, labeling, packaging, transportation and storage of potassium and magnesium sulfate fertilizers. This standard applies to potassium and magnesium sulfate fertilizer products containing magnesium, sulfur and other moderate elements, which are produced from salt lake brine or solid potassium and magnesium salt mines only through physical extraction or direct removal of impurities, and does not apply to potassium sulfate and magnesium compounds. blended products.

GB/T 20937-2007 Referenced Document

GB 15063-2001 Compound fertilizer(Complex fertilizer)
GB 18382 Fertilizer marking—Presentation and declaration*， 2021-04-30 Update
GB 8569 Packing of solid chemical fertilizers*， 2009-11-30 Update
GB/T 1250 Rules for expression and judgement of limiting values
GB/T 19203 Determination of calcium,magnesium and sulphur content for compound fertilizer
GB/T 6679 General rules for sampling solid chemical products
GB/T 8576 Determination of free water for compound fertilizers.Vacuum oven method*， 2010-09-26 Update
GB/T 8577 Determination of free water for compound fertilizers.Karl Fischer method*， 2010-09-26 Update
HG/T 2843 Chemical fertilezer products-standard volumetrie,standard,reagent and indicator solutions for chemical analysis