What are the quality standards for sulfur-coated urea products?
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Dear forum members, what are the quality standards for sulfur-coated urea products?
Original poster, I’ve looked up a lot of information but still haven’t found the quality standards for sulfur-coated urea products. Is it possible that **such standards have not been issued yet?
Quality specifications for (sulfur-containing) large-grain urea: Nitrogen content: 42.3% – 46.3%; Sulfate content: 0% – 0.12%; Moisture content: < 0.3%; Dicyandiamide content: 0.6% – 0.8%; Formaldehyde content: 0.45%. Average particle size: 2–4, 4–8 mm; Crushing strength: 3 – 10 Kg. Last edited by dxbao on 2009-2-23 at 14:32
Standards provided by Dutch company Heijmans Technology
HG/T 3997-2008 Sulfur-coated urea is an industry standard for the chemical sector