total organic carbon std 100 ml 1000 µg/ml in water , tr h2so4
TOC STANDARD, METHOD 5310, EPA SERIES 415, POTASSIUM HYDROGEN PHTHALATE, 100ML
Components:
Water CAS# 7732-18-5 (99.79%)
Potassium hydrogen phthalate cas# 877-24-7 (0.21%)
Sulfuric acid cas# 7664-93-9 (TRACE)