Inorganic Ventures' 1000 ppm Arsenic+3 for ICP is a certified reference material set in a hydrochloric (tr. sodium hydroxide & sodium bicarb.) matrix for stability. This arsenic+3 standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance …

Inorganic Ventures' 1000 ppm Arsenic+5 for ICP is a certified reference material set in a water matrix for stability. This arsenic+5 standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …