Inorganic Ventures' 1000 ppm Zinc for AA is a certified reference material set in a nitric acid matrix for stability. This zinc standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . Size: …

Inorganic Ventures' 1000 ppm Zirconium for AA is a certified reference material set in a water (tr. hydrofluoric acid) matrix for stability. This zirconium standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date…