NY/T 525-2021 - organic fertilizer

Scope: This document specifies the scope, terms and definitions of organic fertilizers, requirements, inspection rules, packaging, labeling, transportation and storage. This document applies to commercial organic fertilizers made from organic waste such as livestock and poultry manure and straw after fermentation and decomposition. This document does not apply to green manure, farmyard manure and other organic fertilizers.

NY/T 525-2021 Referenced Document

GB/T 6682 Water for analytical laboratory use.Specification and test methods
HG/T 2843 Chemical fertilezer products-standard volumetrie,standard,reagent and indicator solutions for chemical analysis
NY/T 1978 Determination of mercury, arsenic, cadmium, lead, chromium and nickel content in fertilizers*， 2022-07-11 Update
NY/T 2540 Fertilizers.Determination of potassium content
NY/T 3442 Technical Specifications for Composting of Livestock and Poultry Manure