VWR®, Osmolality standards

供应商: Avantor
VWRC88272.001EA 1326 CNY
VWRC88272.001 VWRC88280.001 VWRC88277.001 VWRC88279.001 VWRC88275.001 VWRC88282.001 VWRC88271.001 VWRC88278.001 VWRC88273.001 VWRC88276.001 VWRC88281.001 VWRC88274.001 VWRC88283.001 VWRC88270.001
VWR®, Osmolality standards
标准品 Osmolality Standards
Avantor now offers a comprehensive range of osmolality standards as Certified Reference Materials (CRM) for the calibration of osmometers.

Intended use:

  • Calibration of osmometers
  • Validation of analytical methods
  • Preparation of 'working reference samples'
  • Detection limit and linearity studies

Osmolality standards (compatible with all osmometers) are aqueous solutions of known osmolality containing high purity sodium chloride dissolved in 18 MOhm deionised water (filtered through a 0,22 µm filter). Metrological traceability is assured through calibration on a osmometer. The calibration curve is drawn using standard solutions prepared gravimetrically acc. to table 2.2.35-1 from European Pharmacopoeia. All contributions in relation to the preparation of standard solutions are considered when evaluating the uncertainty.

Measurement results are traceable to SI. All analytical balances used for the preparation of the solution are calibrated yearly under an in-house procedure with Class E1 and Class E2 analytical weights, traceable to DKD that are checked daily. Class A laboratory glassware is used. The results from temperature measurement are traceable to SI. The thermometers used for the solution's calibration are calibrated from an ISO 17025 accredited laboratory. Ambient conditions are controlled with a hygrometer calibrated from an ISO 17025 accredited laboratory.

Certifications: All products are CRM acc. ISO 17025 and ISO 17034.
According to Ph. Eur. 2.2.35 (for 100, 200, 300, 400, 500, 600 and 700 mOsm/kg).

Delivery information: Supplied in handy sets of 12×5 ml (3 packs of 4×5 ml). 24 months shelf life.

Packaging: Ready to use in convenient ampoules.

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