Ammonium Sulfate In Bags 50 Kg (Approximate Volume Per Month - 10,000 Kg) White Crystals; Mass Fraction Of Nitrogen In Terms Of Dry Matter: Not Less Than 21%; Mass Fraction Of Moisture: No More Than 0.3% Mass Fraction Of Sulfuric Acid: No More Than 0.05% Friability: No Less Than 100% Mass Fraction Of Sulfur: No Less Than 24%