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Manufactured from the highest purity water and analytically verified neat source materials. Our certified reference materials are ISO 17034 accredited.

Accuracy, homogeneity and performance of each lot is certified in our ISO 17025 accredited laboratory by the same methods you use.

Stable and Easy to Use
Certified stable for up to 2 years from manufacture. Supplied ready to use with no lengthy preparative steps. Just shake and pour.

The certified concentrations of all of our standards are traceable to SI through NIST test masses and/or SRMs. Manufactured and certified under our ISO 17034 accreditation.


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