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Reference Materials Guaranteed for Life

Now covered by a lifetime guarantee, proprietary heat-sealed certified reference materials (CRM) for spectrophotometry are available for validating wavelength accuracy, absorbance accuracy, stray light and resolution in the UV and visible regions. The items are traceable to NIST primary standards via an ISO 17025 accredited process. If the parameter value of any CRM moves outside the specified uncertainty budget—provided the failure is not because of physical damage or abuse and the references have been routinely recertified by the manufacturer—the CRM will be replaced free of charge.
Starna Cells, Inc.
P.O. Box 1919
Atascadero , CA, 93423