1000 ppmC standard KHP, 100ml Back Catalog number: 511-946 Availability: In the manufacturer's stock Price on request - + Recommended 54501 Chloride (Cl-), 1000µg/mL in Water, 500ml Price on request VHG-PCRN-100 Cr, 1000 µg/mL in 5% HNO3, 100ml Price on request 59929 Fluoride (F-), 1.0µg/mL in Water, 500ml Price on request