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Custom Reference Standards

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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Conductivity Standard 12,880 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Buffer Solution, pH 13.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Conductivity Standard 50 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Conductivity Standard 700 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Buffer Solution, pH 12.45, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Buffer Solution, pH 1.68, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Conductivity Standard 1,413 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Buffer Solution, pH 10.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Buffer Solution, pH 12.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Conductivity Standard 20,000 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Buffer Solution, pH 4.01, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Contract Laboratory Program (CLP) Instrument Calibration Standard #3
Item No.: 4400-ICAL3-100
Al 2000, Cu 250, Ba 2000, Fe 1000, Be 50, V 500, Co 50in 5% HNO3. 100 mL
214.00 214.0 USD
Buffer Solution, pH 6.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20 options.
0.0 USD
Conductivity Standard 2,000 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Conductivity Standard 70 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Conductivity Standard 25 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD
Contract Laboratory Program (CLP) Instrument Calibration Standard #1, HNO3, 100mL
Item No.: 4400-ICAL1-100
5,000 µg/mL Ca, K, Mg, Nain 5% HNO3
183.00 183.0 USD
Contract Required Detection Limit (CRDL) Standard, HNO3,0mL
Item No.: 4400-CRDL1-100
See Product Description for full details.
303.00 303.0 USD
258.00 258.0 USD
Conductivity Standard 7,000 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
0.0 USD