NY 2266-2012Water-soluble fertilizers containing calcium and magnesium (English PDF)

1 Scope

This Standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage for water-soluble fertilizers containing calcium and magnesium.

This Standard is applicable to solid or liquid water-soluble fertilizers produced and sold within the People’s Republic of China that contain the secondary nutrients calcium and magnesium as their main components.

2 Normative References

The following documents are indispensable for the application of this document. In terms of references with a specified date, only the version with that specific date is applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document.

GB 190 Packing symbol of dangerous goods

GB/T 191 Packaging - Pictorial marking for handling of goods

GB/T 6679 General rules for sampling 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

GB 8569 Packing of solid chemical fertilizers [Translator’s note. Renamed to GB/T 8569]

GB/T 8576 Determination of free water for compound fertilizers - Vacuum oven method

GB/T 8577 Determination of free water for compound fertilizers - Karl Fischer method

NY/T 887 Liquid fertilizers - Determination of density

NY/T 1108 Liquid fertilizers - Tech-regulations of package

NY 1110 Water-soluble fertilizers - Content-limits of mercury, arsenic, cadmium, lead and chromium

NY/T 1117 Water-soluble fertilizers - Determination of calcium, magnesium, sulphur and chlorine content

NY/T 1972 Water-soluble fertilizers - Determination of sodium, selenium, silicon content

NY/T 1973 Water-soluble fertilizers - Determination of water insoluble matter content and pH

NY/T 1974 Water-soluble fertilizers - Determination of copper, iron, manganese, zinc, boron, molybdenum content

NY/T 1978 Fertilizers - Determination of mercury, arsenic, cadmium, lead and chromium content

NY 1979 Fertilizer registration - Tech-regulations of fertilizer labels

Administrative Measures for Product Quality Arbitration Inspection and Product Quality

Appraisal

Administrative Measures for Metrological Supervision of Quantitatively Packaged

Commodities

3 Terms and Definitions

The following terms and definitions are applicable to this document.

4 Requirements

4.1 The appearance shall be a uniform solid or liquid.

5 Test Methods

6 Inspection Rules

6.1 Products shall be inspected by the manufacturer’s quality supervision department; the manufacturer shall ensure that all products sold comply with the requirements of this Standard.

Each batch of products shall be accompanied by a certificate of quality, the content of which shall comply with marking provisions.

6.2 Products shall be inspected by batch; a single mixing operation constitutes a batch, with a maximum batch size of 50 t.

6.3 Sampling of solid or bulk products shall be performed in accordance with the provisions of

GB/T 6679.Sampling of liquid products shall be performed in accordance with the provisions of GB/T 6680.

6.4 Place the collected samples into a clean, dry container and mix thoroughly and rapidly. Take

600 g of solid sample or 600 mL of liquid sample, divide it into two clean, dry containers, seal them, and affix labels indicating the manufacturer’s name, product name, batch number or date of manufacture, sampling date, and sampler’s name. One container shall be used for product quality analysis, while the other shall be retained for at least two months for re-inspection purposes.

6.5 After the solid sample has undergone repeated subdivision, take approximately 100 g and rapidly grind it until it passes entirely through a 0.50 mm aperture sieve (if the sample is moist, a 1.00 mm sieve may be used); mix thoroughly and place in a clean, dry container for determination.

6.6 After the liquid sample has been shaken repeatedly, rapidly take approximately 100 mL and place it in a clean, dry container for determination.

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