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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.

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VWR® PESTINORM®, tert-Butyl Methyl Ether, 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®, UV spectroscopy bandwidth standards

Supplier: VWR Chemicals

Bandwidth standards.

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VWR®, General purpose viscosity standards

Supplier: VWR Chemicals

These ISO 17025 and ISO 17034 certified general purpose viscosity standards provide certified kinematic viscosity, dynamic viscosity and density data across temperature ranges from 20 to 100 °C.

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ARISTAR®VWR® , Gallium Standard Solution, 1000 mg/L Ga in dilute Nitric Acid (from Ga), Standard for ICP

Supplier: VWR Chemicals

Ga in HNO₃ 2 to 5%.

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VWR® AVS TITRINORM, Calcium Standard Solution, 1000 mg/L Ca in dil. Nitric Acid (from Ca(NO₃)₂), Standard for AAS

Supplier: VWR Chemicals

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

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VWR® AVS TITRINORM, Cadmium Standard Solution, 1000 mg/L Cd in dil. Nitric Acid, Standard for AAS

Supplier: VWR Chemicals

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

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VWR®, Diethanolamine 1000 mg/l in water standard for ion chromatography

Supplier: VWR Chemicals

Amine Standard, Diethanolamine standard, 1000 mg/L, VWR®, Matrix: H₂O, Application: Ion chromatography standards

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VWR®, TOC standard solutions

Supplier: VWR Chemicals

Potassium hydrogen phthalate solutions.

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VWR® AVS TITRINORM, Silicon Standard Solution, 1000 mg/L Si in Water, Standard for AAS

Supplier: VWR Chemicals

Silicium Standard, 1000 mg/L, VWR® AVS TITRINORM, Silicon, Matrix: H₂O, Application: AAS standards

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VWR®, Chlorite 1,000 mg/L in NaOH solution standard for ion chromatography

Supplier: VWR Chemicals

Chlorite standard solution, 1000 mg/L, VWR®, Contents: NaClO₂ in 0,1% NaOH, Application: Ion chromatography standards

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VWR®, Mixed Anions Standard, 7 components in H₂O

Supplier: VWR Chemicals

7 components: Fluorides (F-) 2ppm, Phosphates (PO43-) 10ppm, Nitrites (NO2-) 5ppm, Nitrates (NO3-) 10ppm, Bromides (Br-) 10ppm, Chlorides (Cl-) 5ppm, Sulphates (SO42-) 10ppm in H₂O

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VWR® AVS TITRINORM, Chromium Standard Solution, 1000 mg/L Cr in dil. Nitric Acid, Standard for AAS

Supplier: VWR Chemicals

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

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VWR® ARISTAR®, Cyanide 1000 mg/L Standard for ion chromatography in 0.1% KOH, Certified Reference Material

Supplier: VWR Chemicals

This certified reference material is produced using a high purity starting material, acid from sub-boiling and 18 MOhm deionized water and filtered through a 0.2 micron filter.