Alkalinity/Hardness, Environmental Reference Materials, Inorganics, Water Chemistry CRMs Chlorate CRM #IS-032 This product is available for purchase on our new website at zeptometrix.com. Order online today or call our team at +1.800.274.5487. Catalog Number: IS-032 Options 125mL, 500mL Related products Quick View Add to cart Compare Environmental Reference Materials TOX #IS-022 Quick View Add to cart Compare Environmental Wastewater Standards Mid-Level Solids CRM #QCI-055 Quick View Add to cart Compare Environmental Reference Materials 7 Anion Standard 2 – 125mL #IC-7-2 Quick View Add to cart Compare Environmental Reference Materials 7 Anion Standard 1 – 125mL #IC-7-1