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Inorganic Standards


Peak Performance™ certified reference standards

Standardize Your Standards

CPI International’s Peak Performance™ Inorganic Certified Reference Materials are manufactured for accuracy, consistency, and traceability — delivering reliable results for ICP, ICP-MS, and Atomic Absorption applications.

Set up Auto-ship and relax in the knowledge that you'll never run out of your critical standards again!


Started with Precision

 - High-purity starting materials
 - Sub-boiling distilled acids
 - 18 MΩ de-ionized water

Packaged for Reliability

 - Pre-cleaned, pre-leached HDPE
or LDPE bottles
 - Heat-shrink seals

Engineered for Accuracy

 - Class A volumetric glassware
 - Accurate to ±0.3%
(single-element standards)
 -
Certified against NIST SRM 3100 series

Backed by Integrity

 - NIST-traceable balances
 - Minimum 12-mo. shelf life
 - CoA with every standard


Built on Quality

 - Made in U.S.A.
 - Produced in ISO 17034–accredited facility
 - Tested in ISO/IEC 17025–accredited lab

We'll Mix Customs for YOU!

 - Tailored by your matrix & method
 - Lower your cost per test
 - Warehouse stocking options available


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