## Description Single-use conductivity standards calibrate all conductivity meters and probes for maximum accuracy. Eliminate concern about external container contamination. Calibration is made in the standard vial. **Calibration within container — zero contamination** - Traceable to NIST (National Institute of Standards and Technology) - Accuracy: certificate stated uncertainty or ±0.25 microsiemen or ±0.25% - 100% compatible with all conductivity meters - A2LA accreditations ISO 34 and ISO 17025 plus ISO 9001 - Includes an individual temperature chart and step-by-step calibration instructions - Units labeled (micromhos/microsiemens, ohms, parts per million/TDS) - Single use Eliminates external contamination concerns Each standard contains 100mL ## Specifications ||| | ------------ | ------------ | |Packaging|6/Pk.| |Product Type|Conductivity Calibration Standard; Dissolved solids: 66ppm|