Certified pH Buffers SPEX CertiPrep pH Buffers are accurate and certified to ISO/IEC 17025:2005 and ISO 17034:2016 requirements. Buffers pH 2 through pH 12 are conveniently packaged in 500 mL bottles. Certified pH buffers are made using high purity starting materials and ASTM Type I Water and are thoroughly analyzed for certified value and homogeneity. Buffers are accurate, premium grade for calibration and quality control checks.
Application: For Calibration of Meters & Determining Cell Constants
- Inorganic certified reference materials