Environmental Express Oakton CERTIFIED CRM Conductivity and TDS Standard, Batch-Tested, 100,000 µS; 500 mL

Environmental Express Oakton CERTIFIED CRM Conductivity and TDS Standard, Batch-Tested, 100,000 µS; 500 mL

This certified reference material provides a stable, NIST‑traceable conductivity and TDS standard for calibrating laboratory and field instrumentation. Each batch is produced under ISO 17034 and ISO/IEC 17025 accredited processes, ensuring reliable, defensible measurements for regulatory and quality‑controlled applications.

Key Features

• Certified CRM for conductivity and TDS calibration.
• Batch‑tested with lot‑specific certification and traceability.
• Produced under ISO 17034 and ISO/IEC 17025 accredited quality systems.
• Includes temperature compensation chart and multi‑scale TDS conversion data.
• Supports calibration ranges from mid‑range to very high‑conductivity values.
• Unopened shelf life of one year; opened shelf life varies by solution value.

Applications

• Calibration of conductivity and TDS meters in environmental, industrial, and laboratory settings.
• Verification of conductivity cell constants.
• Regulatory compliance testing for Federal, State, and local agencies.
• Quality assurance programs requiring traceable reference materials.

Compliance & Certifications

• NIST‑traceable calibration certificate included.
• Manufactured under ISO 17034 and ISO/IEC 17025 accreditation.
• Meets method requirements for AOAC, EPA 120.1, APHA/AWWA/WEF 2510, ISO 7888, ASTM D1125, USP 645, and related standards.
• Supports A2LA/NVLAP accreditation and ISO 9001 quality manufacturing.

Specifications

• Catalog Number: 00652-34
• Conductivity Value: 100,000 µS/cm
• TDS Value: 66,000 ppm
• Volume: 500 mL (16 oz)
• 442 Conversion: 70,000 ppm
• KCl Conversion: 55,000 ppm
• NaCl Conversion: 50,000 ppm
• Reference Temperature: 25°C

Included Items

• Lot‑specific NIST‑traceable calibration certificate.
• Temperature compensation chart.
• TDS conversion chart (442, KCl, NaCl).