GB/T 15063-2020: Translated English of Chinese Standard. (GBT15063-2020): Compound fertilizer
www.ChineseStandard.net, 4 giu 2022 - 27 pagine
This standard specifies the terms and definitions, technical requirements, sampling, test methods, inspection rules, marking and quality certificates, packaging, transportation, storage of compound fertilizers. This standard applies to compound fertilizers (including ternary or binary solid fertilizers, which use nitrogen, phosphorus, potassium as basic nutrients, under various names). This standard does not apply to compound fertilizer products, such as monoammonium phosphate and diammonium phosphate.
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1.00 mm aperture accordance with GB/T accurate aperture test sieve Appendix applicable available calcium available magnesium available phosphorus batch of products beaker boiling bottle calcium and available calcium and magnesium calculation result carried Chemical chloride ion content citric acid compound fertilizers constant temperature Cool Cover curve Determination of available determination results difference difficult to pulverize expressed Extraction filter formula grams g gravimetric method ground indicators less manufacturer marked mass concentration mass fraction materials measuring medium elements mL volumetric flask nitrate nitrogen nitric acid solution nitrogen content number of bags NY/T packaging container parallel determination particle passes Place potassium precipitate prepared provisions of GB/T quinoline phosphomolybdate reagent requirements sample is difficult sampling bags silver nitrate single specimen solution standard solution Table Take Technical total nitrogen total nutrients trace element Transfer type inspection ultrasonic water to dilute water-soluble phosphorus Weigh