This standard specifies the requirements, test methods, inspection rules and labeling, packaging, transportation and storage of soil conditioner-phosphogypsum. This standard applies to phosphogypsum used to improve soil produced using industrial by-products from the production of high-concentration phosphate fertilizers as raw materials. This product is mainly used for alkaline soil improvement and cannot be mistakenly used as phosphate fertilizer.
DB42/T 281-2004 Referenced Document
GB/T 1250-1989 Rules for expression and judgement of limiting values
GB/T 14539.1-1993 Determination of arsenic, cadmiun and lead content for compound fertilizers. Preparation of test sample solution
GB/T 14539.2-1993 Determination of arsenic element content for compound fertilizers
GB/T 14539.3-1993 Determination of cadmiun element content for compound fertilizers
GB/T 14539.4-1993 Determination of lead element content for compound fertilizers