Itemspecification Appearancewhite granule Nitrogen(n), 20.5% Moisture(h2o)¤1.5% Free acid( h2so4 )¤0.4% Granule size(mm) 2-5mm 90% Certification of steel grade: Inspection itemsrequirementinspection resultsconclusion or not N content %, 20.520.8conformed Moisture %¤1.00.6conformed Free acid %¤0.20.09conformed S content%, 23.623.9
