Solid Calibration Standards

Published data for silica and crystalline solids gives accuracy to at least the 5th decimal place of RI. Achievable accuracy will depend upon the specification of the refractometer being checked.

Supplied as 10mm diameter x 5mm thick discs to suit all Index Instruments automatic digital refractometers or any refractometer with a circular prism of more than 10mm diameter. Full details and procedures for the use of solid test pieces areprovided with the test pieces, together with recommendations as to whichcontact fluids are suitablefor each application. All standard test pieces are supplied with a statement ofRefractive Index.

Glass solid test pieces are available in many different values to order. The accuracy will, however, depend on the material. Contact us for further details.







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