Environmental Express® Oakton® CERTIFIED CRM One-Shot™ Buffer Solution Kit

Environmental Express Oakton pH buffers are Certified Reference Materials, making them one of the most accurate solutions available.

• pH buffer solutions are NIST-traceable reference materials

• Individually packed in foil pouch to prevent UV exposure that may degrade accuracy
• Buffer solution lets you calibrate pH instruments to ensure accuracy
• Convenient kit includes the most common calibration values

Convenient, single-use vials eliminate concerns of cross-contamination; each pack contains six polyethylene vials with 100 ml of pH buffer per vial. If unopened, shelf life is two years; once opened, use pH 4 and pH 7 within 90 days, pH 10 within 30 days.

Environmental Express Oakton One-Shot™ pH buffer solutions are supplied with NIST-traceable calibration reports stating accuracy at 25 °C to ±0.010 pH, in addition to conversion values for pH/temperature - for the most accurate calibrations.

Certifications: Certified reference material meets test requirements for Federal, State, and local agencies, CAP, ASTM, NCCLS, CLSI, ACS, CLIA, AOAC, EPA, APHA, AWWA, WEF, USGS, USP, and ISO. Traceable® Conductivity Standards complies with and is essential for use in these official methods: AOAC 973.40, EPA 120.1, Standard Method 2510 (APHA, AWWA, WEF), ISO 7888, DIN 38404, ASTM D1125, USGS I-1780, USP 645, and for A2LA/NVLAP accreditations/ISO 9000 certifications. Material may be used to calibrate all conductivity meters and to determine all conductivity cell constants.

Delivery information: Supplied with calibration report from an ISO 17034 and ISO 17025 accredited laboratory.   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. A2LA accredited certification provides the highest achievable level of quality assurance, documentation, and accuracy. Additional certifications include ISO 31 (certificate content) and ISO 35 (statistical analysis), plus ISO 9001 (certified quality manufacturer).