Traceable^® pH Standards, Certified Reference Materials, are 100% compatible with all instruments and probes. Accuracy for the Traceable^® Buffer at 25°C is ±0.010 pH—the most precise available.

Certified Reference Materials meet Federal/State/local agencies’ strictest mandates and deliver exact calibration results for any pH meter.

A2LA ISO/IEC 17025:2005 (1750.01) (Calibration Laboratory) and ISO 17034 (formerly ISO Guide 34) (Certified Reference Material Producer) provide highest achievable levels of product production, documentation, and accuracy. Additional accreditations include ISO 31 (content) and ISO 35 (statistical analysis). ISO 9001 ensures that world-class product standards for Materials are always met.

To assure accuracy an individually serial-numbered Traceable^® Certificate is supplied to indicate traceability to standards provided by NIST (National Institute of Standards and Technology) and/or a National Standards Laboratory.

Each 100 ml container is supplied with an individual temperature compensation chart, traceability information and traceable certificate to indicate traceability to standards provided by NIST.