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Standard Reference Instruments

NIST supports accurate and compatible measurements by producing and providing Standard Reference Instruments that transfer to customers the ability to make reference measurements or generate reference responses based on specific NIST reference instrument designs.

NIST Standard Reference Instruments (SRIs) are designed to help the manufacturers and users of precision instruments achieve the highest possible levels of measurement quality and productivity. They directly link a customer's precision equipment and transfer standards to national and international measurement standards.