MilliporeSigma 595 N. Harrison Road , Bellefonte , Pennsylvania 16823-0048 USA About Solutions products applications industries services training Publications videos articles Latest news Downloads Companies MilliporeSigma Products Model 48948 - EPA 524 Internal Standard Mix Model 48948 - EPA 524 Internal Standard Mix From Drinking Water Reference Standards 0 Share EPA 524 Internal Standard Mix 2000 µg/mL each component in methanol, ampule of 1 mL. Most popular related searches water reference standard drinking water reference standard EPA standard reference standard water standard drinking water standard drinking water water mixing Customer reviews No reviews were found for Model 48948 - EPA 524 Internal Standard Mix. Be the first to review! Add your review Publish your review Great! review successfully added!