Product Short Description: Glycerol sulfate solution is used to maintain proper crystal size in pricipitation of SUFATE, during SULFATE TEST. As The resultant turbidity of solution is measured at a wave length sensitive to turbidity on a photometer. Product Description: Sulfate Standard solution is used to prepared sulfate calibration curve. As The resultant turbidity during sulfate test of sample solution result on photometer. Standardization of this solution directly proportionate to Calculation of Results. The sulfate concentration in parts per million as SO4 is obtained by reference to the prepared sulfate calibration curve. Click here for more Details of Testing Procedure ...