This CRM is intended for the examination of the degree of colouration of liquids related to USP <631>.
Certification
This CRM has been manufactured and tested in accordance with Ph. Eur. 2.2.2 using a sample of this lot taken at the time of manufacture. This solution meets the requirements of USP <631> for Color and Achromicity.
Metrological Traceability
Measurements are derived from and traceable to the SI system of units through the use of balances calibrated against NPL’s
national standard for mass. The balances used in this process are calibrated on a regular basis with the calibration being
traceable to National Institute Standards and Technology (NIST) and other recognised national standards laboratories. This
certificate provides traceability of measurement to recognised national standards, and to units of measurement recognised at
National Institute Standards and Technology (NIST) and other recognised national standards laboratories
All temperature measurements are traceable to the International Temperature Scale 1990 and were made using
thermometers with calibrations traceable to the National Physical Laboratory (NPL), the National Institute of Standards and
Technology (NIST), or other recognised national standards laboratories
Where required Class A laboratory glassware is used.
LGC Paragon Scientific, a trusted producer of premium quality reference materials since 1994, joined the LGC family in 2021, strengthening the global reference material offering for both businesses through strongly complementary product portfolios. Paragon Scientific manufactures a wide selection of high-quality reference materials, including Density, Flash Point, Liquid Colour, Refractive Index, Sulfur, TAN/TBN, and Viscosity standards. Leveraging advanced manufacturing techniques and primary laboratory testing equipment, the company achieves remarkably low levels of measurement uncertainty in their products which has earned them trust across multiple industries worldwide including petrochemical, pharmaceutical, clinical, environmental and more.