1 Scope
This standard specifies limit regulation, test methods, inspection rules and identification of product for mercury, arsenic, cadmium, lead and chromium in water-soluble fertilizer.
This standard is applicable to liquid or solid water-soluble fertilizer produced and sold within the territory of People's Republic of China.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, only the dated versions apply to this standard. For undated references, the latest edition of the normative document (include all the amendments) is applicable to this standard.
GB/T 6679 General Rules for Sampling of Solid Chemical Products
GB/T 6680 General Rules for Sampling Liquid Chemical Products
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgement of Limiting Values
NY/T 1978 Fertilizers-Content-Limits of Mercury, Arsenic, Cadmium, Lead and Chromium
NY 1979 Fertilizer Registration-Tech-regulations of Fertilizer Labels
"Product Quality Arbitration Inspection and Product Quality Assessment Management Method"
3 Term and Definition
For the purpose of this document, the following term and definition applies.
3.1
Water-soluble fertilizers
Liquid or solid fertilizers, dissolved or diluted by water, used for such purposes as fertigation, foliage dressing, soilless culture and seed soaking and root dipping.
