Standards

Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

VWR® PESTINORM®, Tetrahydrofuran (THF), Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR®, Standard solution (250 ppm NH₄) for the preparation of Ammonium standard solution (2.5 ppm NH₄) Reag.Ph.Eur.; 5000301

Supplier: VWR Chemicals

Ammonium Standard, Ammonium standard solution, 250 mg/L, VWR®, Matrix: H₂O

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VWR®, Conductivity standard solutions

Supplier: VWR Chemicals

A complete range of certified control standards with values ranging from 1,3 to 500000 µs to meet all the requirements for electrochemical analysis.

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VWR®, Colour reference solutions acc. to Ph. Eur., ready to use

Supplier: VWR Chemicals

These solutions are developed and produced according to chapter 2.2.2. 'Degree of colouration of liquids' of the European Pharmacopoeia. (brown, brown-yellow, green-yellow, red and yellow). These kits are ready to use, and are dedicated to help you save time and money because preparation of these solutions is very complex.

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VWR®, Potassium standard solution, 1,000 mg/L K in dilute nitric acid AVS TITRINORM standard for AAS

Supplier: VWR Chemicals

Potassium Standard, 1000 mg/L, VWR®, Potassium, Matrix: 2% HNO₃, Application: AAS standards

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VWR®, Perfluorooctane sulphonic acid, Certified Reference Material (CRM)

Supplier: VWR Chemicals

Per- and polyfluoroalkyl substances (PFAS) are amongst the primary emerging contaminants of concern. The detection and quantification of known PFAS and the discovery of unknown PFAS substances has never been more important.

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VWR®, Sulphate 1000 mg/L in water standard for ion chromatography

Supplier: VWR Chemicals

Sulphate standard solution, 1000 mg/L, VWR®, Contents: Na₂SO₄ in H₂O, Application: Ion chromatography standards

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VWR®, Perchlorate 1,000 mg/l in Water standard for ion chromatography

Supplier: VWR Chemicals

Perchlorate 1,000 mg/l in water standard for ion chromatography, 1000 mg/l, VWR®, Contents: KClO₄ in H₂O, Application: Ion chromatography standards

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VWR® AVS TITRINORM, Iron Standard Solution, 1000 mg/L Fe in 2% Hydrochloric Acid AVS TITRINORM Standard for AAS

Supplier: VWR Chemicals

Iron Standard, 1000 mg/L, VWR® AVS TITRINORM, Iron, Matrix: 2% HCl, Application: AAS standards

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VWR®, Standard solution (1000 ppm NO₃) for the preparation of nitrate standard solution (100 ppm NO₃) Reag. Ph. Eur.; 5002100

Supplier: VWR Chemicals

Nitrate standard solution, 1000 mg/l, VWR®, Contents: KNO₃ in H₂O, Application: Ion chromatography standards

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VWR®, Chlorate 1,000 mg/L in Water standard for ion chromatography

Supplier: VWR Chemicals

Chlorate standard solution, 1000 mg/l, VWR®, Contents: NaClO₃ in H₂O, Application: Ion chromatography standards

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VWR® AVS TITRINORM, Beryllium Standard Solution, 1000 mg/L Be in 2% Hydrochloric Acid, Standard for AAS

Supplier: VWR Chemicals

Beryllium Standard, 1000 mg/L, VWR® AVS TITRINORM, Beryllium, Matrix: 2% HCl, Application: AAS standards

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VWR®, Sulphur, Certified Reference Materials, in heavy mineral oil

Supplier: VWR Chemicals

Sulphur CRMs are suitable for calibration, verification or for use in quality control procedures used for analysing sulphur content in petroleum products.