Phosphate Buffer, pH 7, for Amperometric D

Phosphate Buffer, (Certified pH 7), for Amperometric Determination of Residual Chlorine and Chlorine Dioxide, Concentration pH 7, CAS Number 7732-18-5; 7558-79-4; 7778-77-0APHA 4500-ClO2 C, Container Size 4L, Container Material Poly Natural, Calibration Certificate NIST SRM 185 & 186, Shelf Life 24 Months