Detail of NY 481-2002

Introduction of NY 481-2002

1 Scope This standard specifies technical requirements, test methods, inspection rules, marking, packaging, transportation and storage for organic-inorganic compound fertilizers. This standard is applicable to organic-inorganic compound fertilizers made from organic materials such as livestock and poultry manure, animal and plant residues, as main raw materials, through fermentation and decomposition treatment, and addition of inorganic fertilizers. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies. GB/T 1250 Rules for expression and judgment of limiting values GB/T 6274 Fertilizers and soil conditioners—Vocabulary GB/T 6679 General rules for sampling solid chemical products GB 8172 Control STANDARDs for urban wastes for agricultural use GB 8569 Packing of solid chemical fertilizers GB/T 8571 Preparation of laboratory samples for compound fertilizers GB/T 8573 Determination of available phosphorus content for compound fertilizers GB/T 8576 Determination of free water for compound fertilizers—Vacuum oven method GB/T 17767.1 Determination of total nitrogen content for organic-inorganic compound fertilizers GB/T 17767.3 Determination of total potassium content for organic-inorganic compound fertilizers GB 18382 Fertilizer marking—Presentation and declaration GB 15063-2001 Compound fertilizer (Complex fertilizer) HG/T 2843 Chemical fertilizer products—Standard volumetric, standard, reagent and indicator solutions for chemical analysis 3 Terms and definitions For the purposes of this standard, the terms and definitions given in GB/T 6274 and the followings apply. organic-inorganic compound fertilizer product derived from organic and inorganic substances with declared nutrients, and made by mixing and/or combining organic and inorganic fertilizers.

Contents of NY 481-2002

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 5 Test methods 6 Inspection rules 7 Marking 8 Packaging, transportation and storage