Calibration and Services – Refractometer Calibration
• Refractometer Calibration – Fluids
• Refractometer Calibration – Solids
• Refractometer Calibration – Sucrose
• Polarimeter Calibration – Quartz
Requires
a PDF reader Distilled Water
AG Fluids
Calibration Oils
Calibration Materials - Polarimeters
Testing Services
Instrument Repair and Calibration
On-site Verification & Commissioning
Solid test plates are precision ground optical components that can be placed on the prism of a refractometer to provide a reading of traceable value. Solid test plates are often used with optical instruments such as Abbe refractometers or optical hand held instruments as they are not effected by chemical or temperature change. In particular, hand held refractometers may be verified using a solid plate where the range of the instrument prevents the use of water for zero calibration (for example refractometers with a range of 10-30% water in honey).
Solid test plates are not generally suitable for use with digital refractometers as the prism surface is too small for good contact to be made and it is possible to generate small errors when using them on such instruments.
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Contact liquids are required for applying test plates or solid samples to refractometer prisms as below:
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Certification Service
All Solid Test Plates are supplied with a certificate of verification at point
of order, carried out at 589.3nm and at 20°C to any accuracy as described
in the table below:
Please note that only silica plates may be returned for recertification. Therefore customers wishing regular certification are advised to purchase a silica test plate.
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