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      This standard specifies the technical requirements, performance testing and calibration methods of Abbe refractometers. It covers the design principle, operation process and Measurement accuracy of Abbe refractometers, aiming to ensure their accuracy and Reliability in Optical inspection property measurement, and provide effective tools and bases for materials science and chemical analysis.

      This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
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