Cleaning and calibrating a Brix refractometer every time it is used will ensure that colostrum quality is measured accurately and consistently. This will ...

J257 Refractometer offers full and Traceable Calibration The Rudolph J257 Refractometer offers 1 pt, 2 pt, or a full multi-point calibration.

Calibration is simple and the IP65 unit is dust-tight and water-resistant. The refractometer automatically shuts off after three minutes to save battery power.

The J457 Electronic, Laboratory Refractometer is the most capable instrument in the Rudolph Research Refractometer Product Line. 3 models/configurations are available.

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Warren P. Valentine began making refractometers when World War I limited the import of European instruments into the United States. By 1920 the National Bureau of Standards reported that Valentine's ...

Research details hyaluronic acid's properties through SEC-MALS and differential viscometry, highlighting its molecular weight and conformational behavior.