NY 1110-2010Water-soluble fertilizers. Content-limits of mercury, cadmium, lead and chromium (English PDF)

3.1 Water-soluble Fertilizers

Water-soluble fertilizers refer to liquid or solid fertilizers that are dissolved or diluted with water for the purposes of irrigation, fertilization, foliar fertilization, soilless cultivation, seed soaking, etc.

6.3 The sampling of solid or bulk products shall comply with the stipulations in GB/T

6679. The sampling of fluid products shall comply with the stipulations in GB/T 6680.

6.4 The sample shall be placed in a clean and dry container, mixed promptly. Take 600 g of solid sample of 600 mL of fluid sample; divide it into 2 clean and dry containers;

seal them up and put on a label. Indicate the name of manufacturer, the name of product, batch number or date of production, date of sampling and the name of sampler.

6.5 After several divisions of solid sample, take out around 100 g. Then, promptly grind it till it can completely pass through 0.50 mm sieve (if the sample is moist, it can pass through 1.00 mm sieve). Mix it up, then, place it in a clean and dry container; reserve it for determination.

6.7 When manufacturing enterprise conducts the exit-factory inspection, if one or more

indicators in the inspection result cannot comply with the requirements of this Standard, then, re-take a sample from the doubled sampling batch, and conduct re-inspection. If one or more indexes in the re-inspection result cannot comply with the requirements in this Standard, the whole batch of products shall not be considered as qualified in acceptance check.

6.8 In the determination of product quality, adopt “rounding-off comparison method” in

GB/T 8170.

6.10 When there is dispute between the supply side and the demand side about product quality and demand arbitration, it shall be executed in accordance with the stipulations in Product Quality Arbitration, Inspection and Product Quality Assessment

Management Measures.