Quality Control Standard 2 for EPA 200.7 is a certified reference material traceable to NIST and manufactured in accordance with stringent quality assurance guidelines. One year expiration date. COA and MSDS are included.
Contains Mo, Ti 100ug/mL, SiO2, Sb 200ug/mL, Sn 500ug/mL, stabilized in 5% v/v nitric acid/trace hydrofluoric acid. 125 mL bottle.