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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.

VWR® PESTINORM®, iso-Butyl Methyl Ketone, 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®, Trimethylamine 1000 mg/l in water standard for ion chromatography

Supplier: VWR Chemicals

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

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VWR® ARISTAR®, Multi-Element Quality Control Standard 100 mg/L, 22 Elements in Nitric Acid 5% for ICP

Supplier: VWR Chemicals

22 elements 100 mg/L: As, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn.

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VWR® ARISTAR®, Osmium Standard Solution for ICP

Supplier: VWR Chemicals

Osmium Standard, 1000 mg/L, VWR® ARISTAR®, Osmium, Matrix: 2% HCl, Application: ICP standards, ICP-MS standards

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VWR® ARISTAR®, Potassium Standard Solution, 1000 mg/L K in dilute Nitric Acid (from KNO₃), Standard for ICP

Supplier: VWR Chemicals

KNO₃ in HNO₃ 2 to 5%.

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

Supplier: VWR Chemicals

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

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VWR® ARISTAR®, Phosphorus Standard Solution, 1000 mg/L P in Water (from (NH₄)PO₄H₂), Standard for ICP

Supplier: VWR Chemicals

NH₄H₂PO₄ in H₂O.

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VWR® ARISTAR®, Sulphur Standard Solution, 10000 mg/l S in Water (from (NH₄)₂SO₄), Standard for ICP

Supplier: VWR Chemicals

(NH₄)₂SO₄ in H₂O.

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

Supplier: VWR Chemicals

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

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VWR®, Melting point standards

Supplier: VWR Chemicals

These standards can be used with any melting point apparatus and are prepared using pure raw materials. Melting points are determined using a high accuracy Differential Scanning Calorimeter (DSC) system that is calibrated to the ITS 90 International Temperature Scale.