Environmental Express Universal Solids Standard (High Range), 10pk

Universal Solids Standard (USS) provides known QC data for all solids procedures. USS is suitable for Total and Volatile Solids, Total and Volatile Suspended Solids. USS is supplied in glass vials with weights of dissolvable material and non-dissolvable material affixed. The volatile percentage of USS of each lot is supplied, along with directions for its use. USS enables laboratories to continually monitor the quality of their solids testing results. Concentration: 220-330mg