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Paragon Scientific Limited specialise in the production of premium quality reference materials that include Density, Flash Point, Liquid Colour, Refractive Index, TAN/TBN and Viscosity standards.

Founded in 1994, Paragon have developed an international reputation synonymous with quality, prompt delivery, affordability, and first class customer service. A combination of advanced manufacturing techniques, the use of Primary laboratory test equipment and acute attention to detail enables Paragons to produce reference materials with some of the lowest levels of uncertainty of measurement available. Paragon's products are used in multiple industries throughout the world.


Paragon's viscosity standards, viscometer calibration, density standards and sucrose RI standards are all covered by the United Kingdom Accreditation Service (UKAS) accreditation to the International Standard BS/EN/ISO/IEC 17025 - 2005, in addition to this Paragon's Refractive Index standards are manufactured conforming to ICUMSA (1974). For more information about UKAS and to view Paragon's scope of accreditation (Calibration Laboratory number 0649) please visit www.ukas.org/calibration

 Paragon Scientific 2018 Catalogue      Paragon Scientific Refractive Index Certified Reference Materials     Paragon Scientific Certified pH Buffer Solutions   Paragon Scientific Refractive Index and Density Multi-Parameter Certified Reference Materials

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Density Standard 1.1283 g/mL at 15°C

Part Number: PGN-DEN15-12-500mL
Pack Size: 500mL
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UKAS ISO 17025 / ISO Guide 34 Certified

Cone & Plate Viscosity Standard CRM, 351.1 mPa.s (25°C)

Part Number: PGN-2162/8
Pack Size: 500mL
UKAS ISO 17025 / ISO Guide 34 Certified

Flash Point Standard, Cleveland Open Cup, ASTM D 92 (85°C)

Part Number: PGN-FP-COC-1
Pack Size: 3 x 80mL
UKAS ISO 17025 / ISO Guide 34 Certified

Cloud Point Standard, Diesel, ASTM D 2500; NF EN23015 (-6.6°C)

Part Number: PGN-CRM-CPGO
Pack Size: 250mL
Round Robin Certification

Low Temperature Viscosity Standard, ASTM D 2162 traceable

Part Number: PGN-N400B -5L
Pack Size: 5L
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UKAS ISO 17025 / ISO Guide 34 Certified