Drinking Water QC Knowns Inorganic Disinfection By-Products Concentrate CRM #QCI-017 $65.00 Add to cart Compare Catalog Number: QCI-017 view all details Related products Quick View Add to cart Compare $76.00 Drinking Water QC Knowns Perchlorate Whole Volume QC #QCI-194 Quick View Add to cart Compare $76.00 Drinking Water QC Knowns Uranium QC Concentrate CRM #QCI-143 Quick View Add to cart Compare $64.00 Drinking Water QC Knowns Vanadium QC Concentrate CRM #QCI-144 Quick View Add to cart Compare $44.00 Drinking Water QC Knowns Drinking Water pH QC #QCI-083