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Optical Measurement
Refractive Index Standards
Paragon Scientific produces a range of refractive index standards for use in the calibration and verification of all types of refractometer e.g. handheld, Abbe and high accuracy digital instruments.
Colour Standards
These range of liquid colour standards includes AOCS-Tintometer, ASTM, Gardner, Lovibond RYBN, Pt-Co and Saybolt Colour, the key colour scales applied to oils, fuels & chemicals.
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- Calibration Standards
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- General Purpose Viscosity Reference Standards
- Cold Cranking Simulator Viscosity
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- High Temperature Viscosity
- High Temperature Viscosity Standards - 100 to 150 °C
- Medical Viscosity
- Mineral Oil Rotational Viscosity
- Pure Water Viscosity Standard
- Silicone Rotational Viscosity
- Small Sample Viscosity
- Special Blend Viscosity
- Colour Standards
- Conductivity Standards
- Density Standards
- Refractive Index Standards
- Relative Density Standards
- Secondary Working Flash Point Standards
- Sulfur Standards
- Total Acid Number (TAN) Standards
- Total Base Number (TBN) Standards
- Viscosity Check Oils
- Certified Ethanol Standards - % ABV (Alcohol by Volume)
- Smoke Point Reference Fuel Blends (RFBs)
- Viscosity Standards
- Certified Reference Materials
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- Calibration Standards
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- Colour Measurement
- Cloud Point & Pour Point Measurement
- Cold Filter Plugging Point (CFPP) Measurement
- Flash & Fire Point Measurement
- Foaming, Air Release & Emulsification
- H₂S and Particle Count
- Laboratory Baths & Circulators
- Refractometers
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