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Reference Standards


Peak Performance™ certified reference standards

Standardize Your Standards

CPI International provides a comprehensive portfolio of reference materials and standards to support analytical testing across industries. From inorganic and organic standards to cannabis, food safety, microbiology, and environmental solutions, our selection of standards is designed to meet the diverse needs of modern laboratories.

  • Certified Reference Materials (CRMs): Produced in ISO 17034–accredited facilities for accuracy and traceability.
  • Reference Materials (RMs): Manufactured and tested in ISO/IEC 17025–accredited laboratories.
  • Application-Specific Standards: Covering spectroscopy, chromatography, mass spectrometry, microbiology, and wet chemistry methods.
  • Custom Standards: Tailored formulations to reduce workload, improve efficiency, and support regulatory compliance in your industry.

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277.00 277.0 USD
Conductivity Standard 1,413 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
146.00 146.0 USD
121.00 121.0 USD
141.00 141.0 USD
Buffer Solution, pH 10.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
Buffer Solution, pH 12.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
Conductivity Standard 20,000 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
581.00 581.0 USD
259.00 259.0 USD
Buffer Solution, pH 4.01, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
41.00 41.0 USD
156.00 156.0 USD
78.00 78.0 USD
53.00 53.0 USD
Buffer Solution, pH 6.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20 options.
20.00 20.0 USD
32.00 32.0 USD
24.00 24.0 USD