Refractometer
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      USP 831 Refractometer Training

      Short 5 minute video on how to perform the USP 831 temperature validation and how to use the temperature validation tool.

      This process applies to J257 and J357 refractometers with serial numbers equal to or greater than 16xxx and all J457 refractometers. Please review the short 5 minute training video in its entirety.