Anions, Environmental Reference Materials, Inorganics, Water Chemistry CRMsFluoride CRM #IS-016$33.00 – $51.001000mg/L in Water. Derived from high purity Sodium fluoride, NIST traceable. read moreOptions Choose an option125 mL500 mLClear Add to cart Compare Catalog Number:IS-016.Options125 mL, 500 mLRelated products Quick View Add to cart Compare $59.00 Environmental Reference Materials Chlorite – 125mL #IC-016 Quick View Add to cart Compare $59.00 Environmental Reference Materials Ammonium – 125mL #IC-001 Quick View Add to cart Compare $59.00 Environmental Reference Materials Nitrate – 125mL #IC-025 Quick View Add to cart Compare $59.00 Environmental Reference Materials Perchlorate CRM #IC-037