Multi-Parameter Refractive Index & Density Certified Reference Material

The product offers traceability of measurement to recognized national standards, and to units of measurement realized at the National Physical Laboratory (NPL) or other recognized national standards laboratories. Both density and refractive index values are fully traceable to National Institute Standards and Technology (NIST) and international protocols.

The combined refractive index and density CRM (nominal RI value 1.5463 at 20 °C) is used to calibrate and verify refractometers such as handheld, Abbe and high-accuracy digital instruments.

• CRM certified in strict adherence to ISO 17025 / ISO 17034 under UKAS accreditation
• density measured and qualified in accordance with ASTM D1480
• ensures full compliance to ASTM and IP test method protocols
• low levels of uncertainty, guaranteeing maximum accuracy of data and dependable results
• supplied in 30 mL volume sealed glass vials for ample measurement readings
• 12-months shelf life as stated in the certificate of analysis (CoA)