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.

ARISTAR®, Erbium Standard Solutions for ICP-MS

Supplier: VWR Chemicals

Erbium Standard, 10 mg/L, VWR® ARISTAR®, Erbium, Matrix: 2-5% HNO₃, Application: ICP-MS standards

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2-Acetylpyridine, Reference Standard

Supplier: USP

USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

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VWR®, Density standards referenced at 60 °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® 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® AVS TITRINORM, Strontium Standard Solution, 1000 mg/L Sr in dil. Nitric Acid, Standard for AAS

Supplier: VWR Chemicals

Strontium Standard, 1000 mg/L, VWR® AVS TITRINORM, Strontium, Matrix: Nitric acid dil., Application: AAS standards

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

Supplier: VWR Chemicals

Citrate standard solution, 1000 mg/l, VWR®, Contents: C₆H₅O₇Na₃ in H₂O, Application: Ion chromatography standards

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

Supplier: VWR Chemicals

Acetate standard solution, 1000 mg/l, VWR®, Contents: CH₃COOH in H₂O, Application: Ion chromatography standards

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VWR® ARISTAR®, Sodium 1000 mg/L in Water Standard for Ion Chromatography

Supplier: VWR Chemicals

Sodium Standard, Sodium 1000 mg/l in water standard for ion chromatography, 1000 mg/L, VWR® ARISTAR®, Sodium, Matrix: H₂O, Application: Ion chromatography standards