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®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®, 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®, 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® AVS TITRINORM, Bismuth Standard Solution, 1000 mg/L Bi in 10% Nitric Acid, Standard for AAS

Supplier: VWR Chemicals

Bismuth Standard, 1000 mg/L, VWR® AVS TITRINORM, Bismuth, Matrix: 10% HNO₃, Application: AAS standards

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VWR®, Organic reference standard, Chloroethane 200 µg/ml in methanol

Supplier: VWR Chemicals

Organic Standard, Chloroethane 200 µg/ml in methanol, Pack type: Glass ampoule

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VWR®, UV/Visible spectroscopy linearity standards at 235, 257, 313 and 350 nm

Supplier: VWR Chemicals

Linearity standards packed in permanently sealed UV cuvettes or 100 ml amber bottles.

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VWR®, Glycolate 1,000 mg/L in water standard for ion chromatography

Supplier: VWR Chemicals

Glycolate standard solution, 1000 mg/l, VWR®, Matrix: H₂O, Application: Ion chromatography standards

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VWR®, 3-Methoxypropylamine 1,000 mg/l in water standard for ion chromatography

Supplier: VWR Chemicals

3-Methoxypropylamine Standard, 3-methoxypropylamine standard, 1000 mg/L, VWR®, Matrix: H₂O, Application: Ion chromatography standards

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VWR®, COD calibration standards

Supplier: VWR Chemicals

These standards are ideal to use as control standards for COD measurements to verify that correct analysis for COD has taken place.

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VWR®, Redox (ORP) Standards

Supplier: VWR Chemicals

Avantor offers a wide range of REDOX (ORP) standards, which are produced from high quality reagents.These reference materials can be used as control standards to check the functionality of both the elextrodes and the measuring instruments. The values are temperature dependent, so it is important to control the environment of the measurement. A table of temperatue and corresponding Redox value is available on both the label and the batch specific certificate.

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$VWR®, Sucrose (Brix) standards, stabilised solutions for refractometry$

VWR®, Sucrose (Brix) standards, stabilised solutions for refractometry

Supplier: VWR Chemicals

A range of Brix/refractive index standards for ease of use when calibrating all types of refractometers.

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VWR® PESTINORM®, Methanol, 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®, Flash point reference standard, Pensky Martens

Supplier: VWR Chemicals

PMCC flash point standards are tested and certified in accordance with ASTM D93 'Standard Test Method for Flash Point by Pensky Martens Closed Cup Tester - Procedure A'

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VWR® PESTINORM®, 2-Propanol, 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®, 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® ARISTAR®, Multi-Element Standards, Anionic for Ion Chromatography

Supplier: VWR Chemicals

Ion chromatography anion multi-element standard solution I, 1000 mg/L, VWR® ARISTAR®, Matrix: H₂O, Contents: F, Br, PO₄ in water, Application: Ion chromatography standards