T/CPFIA 0002-2022 Mineral-source fulvic acid potassium macronutrient water-soluble fertilizer

Scope

Scope: This document specifies the definition, requirements, test methods, inspection rules, and labeling, user manuals, packaging, transportation, and storage of mineral-source potassium humate-based macronutrient water-soluble fertilizers. This document applies to solid or liquid products primarily composed of mineral-source potassium humate and macronutrient water-soluble fertilizers; Main technical content: 4.1 A uniform appearance of solid or liquid products, with solids being granules or powders without visible mechanical impurities; liquids without obvious sediment or impurities. 4.2 Technical indicators: The technical indicators of mineral-source potassium humate-based macronutrient water-soluble fertilizers shall comply with Table 1. Table 1: Technical Indicators of Mineral-Source Potassium Humate-Based Macronutrient Water-Soluble Fertilizers Item Solid Products Liquid Products Macronutrient Content a ≥50.0% ≥400g/L Mineral Source Potassium Humate Content b ≥1.0% ≥10g/L Water Content c ≤3.0% / Water-insoluble Matter Content ≤1.0% ≤10g/L Urethane Dithiocarbamate Content d ≤0.9% Chloride Ion Content e ≤3.0% ≤30g/L Products labeled as "Chloride-Free (Low Chloride)" ≤15.0% ≤150g/L Products labeled as "Chloride-Free (Medium Chloride)" ≤30.0% ≤300g/L A. The total N, P2O5, and K2O content shall account for the sum of all macronutrients. The product shall contain at least two macronutrients, with the single macronutrient content not less than 4.0% or 40g/L. The absolute deviation between the measured and declared values of each single macronutrient shall not exceed 1.5% or 15g/L. B. The mineral-source potassium humate added to the product shall have an absolute deviation between the measured and declared values of not more than 0.5% or 5g/L. C. The water content shall be based on the factory inspection. D. Products with chloride ion content greater than 30.0% or

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