... share of sulphur, not less than, %99,90Ash content, %, not more than0,05Organic substances content, %, not more than0,06Acidity, %, not more than0 ... ,0015Moisture content, not more than, %0,5Mechanical contaminations (paper, wood, sand, etc) ... PURITY IS MINIMUM 99.80%, COMIDITY IS ACCEPTABLE BUT ANY MOISTURE IN EXCESS OF 0.5% TO BE PROPORTIONALLY REDUCED FROM ...