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.

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

Supplier: VWR Chemicals

In in HNO₃ 2 to 5%.

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VWR® ARISTAR®, Mercury Standard Solution, 10000 mg/l Hg in dil. Nitric Acid (from Hg), Standard for ICP

Supplier: VWR Chemicals

Hg in HNO₃ 10%.

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VWR® ARISTAR®, Cerium Standard Solution, 1000 mg/L Ce in dil. Nitric Acid (from (NH₄)₂Ce(NO₃)₆), Standard for ICP

Supplier: VWR Chemicals

(NH₄)₂ Ce(NO₃)₆ in HNO₃ 2 to 5%.

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VWR®, Lanthanum standard solution, 10000 mg/L La in dil. nitric acid (from La₂O₃) ARISTAR® standard for ICP

Supplier: VWR Chemicals

La₂O₃ in HNO₃ 2 to 5%.

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VWR® ARISTAR®, Tantalum Standard Solution, 1000 mg/L Ta in Water with Hydrofluoric Acid (max. 1%) (from Ta), Standard for ICP

Supplier: VWR Chemicals

Ta in H₂O tr. HF.

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VWR® ARISTAR®, Lutetium Standard Solution, 1000 mg/L Lu in dil. Nitric Acid (from Lu₂O₃), Standard for ICP

Supplier: VWR Chemicals

Lu₂O₃ in HNO₃ 2 to 5%.

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VWR®, Distillation standards for the petroleum industry, Certified Reference Materials

Supplier: VWR Chemicals

Distillation Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for distillation at atmospheric pressure according to ASTM D86, IP 123, ISO 3405 and other such equivalent international methodology.

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VWR®, Density standards referenced at 40 °C

Supplier: VWR Chemicals

These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.

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VWR® PESTINORM®, Dimethylsulphoxide (DMSO), 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® PESTINORM®, N,N-Dimethylacetamide, 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® ARISTAR®, Nickel Standard Solution, 1000 mg/L Ni in dil. Nitric Acid (from Ni), Standard for ICP

Supplier: VWR Chemicals

Ni in HNO₃ 2 to 5%.

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VWR®, Titanium standard solution, 1000 mg/L Ti in water with hydrofluoric acid (max. 1%) (from (NH4)2TiF6) ARISTAR® standard for ICP

VWR®, Titanium standard solution, 1000 mg/L Ti in water with hydrofluoric acid (max. 1%) (from (NH₄)₂TiF₆) ARISTAR® standard for ICP

Supplier: VWR Chemicals

(NH₄)₂ TiF₆ in H₂O tr. HF.

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VWR®, Sulphur, Certified Reference Materials, in odourless kerosene

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.