You searched for: 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®, 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® 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®, Density standards referenced at 50 °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®, Density standards referenced at 15 °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®, Density standards referenced at 20 °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®, Hydrogen sulphite 1,000 mg/L in Water standard for ion chromatography

Supplier: VWR Chemicals

Hydrogenphthalate standard solution, 1000 mg/l, VWR®, Contents: KC₈H₅O₄ in H₂O, Application: Ion chromatography standards

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VWR® PESTINORM®, 1,4-Dioxane, Stabilised, Secondary Reference Standard for GC

Supplier: VWR Chemicals

Stabilised with BHT (2,6-Di-tert-butyl-p-cresol, 2,6-Di-tert-butyl-4-methylphenol, Ionol) 20 ppm. A secondary GC solvent reference standard for various chromatographic and analytical applications.

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

Supplier: VWR Chemicals

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

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VWR®, Sulphite (in HSO³⁻) 1000 mg/L in Water standard for ion chromatography

Supplier: VWR Chemicals

Sulphite (HSO₃^-) standard solution, 1000 mg/L, VWR®, Contents: NaHSO₃HCOH in H₂O, Application: Ion chromatography standards

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VWR® PESTINORM®, Di-isopropyl Ether, Stabilised, Secondary Reference Standard for GC

Supplier: VWR Chemicals

Stabilised with BHT (2,6-Di-tert-butyl-p-cresol, 2,6-Di-tert-butyl-4-methylphenol, Ionol) 40 ppm. A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR®, Residual solvent standards, Class 3

Supplier: VWR Chemicals

The level of volatile organic solvents in pharmaceutical raw materials or finished product is defined and monitored in accordance with ICH guidelines. Residual solvents are classified according to their risk assessment classes. A selection of residual solvent standards is now available from Avantor.

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

Supplier: VWR Chemicals

Phosphate standard solution, 1000 mg/l, VWR®, Contents: NH₄H₂PO₄ in H₂O, Application: Ion chromatography standards

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VWR®, Perchlorate 1,000 mg/l in Water standard for ion chromatography

Supplier: VWR Chemicals

Perchlorate 1,000 mg/l in water standard for ion chromatography, 1000 mg/l, VWR®, Contents: KClO₄ in H₂O, Application: Ion chromatography standards

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VWR® PESTINORM®, LC Multiresidue Pesticide Standard (Mix 10) - 1 component, CRM

Supplier: VWR Chemicals

A standard, typically used in food testing, Carbendazim [CAS:10605-21-7] 100 ug/ml in Methanol

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VWR®, Neodymium standard solution, 1000 mg/L Nd in dil. nitric acid (from Nd₂O₃) ARISTAR® standard for ICP

Supplier: VWR Chemicals

Nd₂O₃ in HNO₃ 2 to 5%.

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VWR® PESTINORM®, GC Multiresidue Pesticide Standard (Mix 7) - 10 components, CRM

Supplier: VWR Chemicals

A standard mixture, typically used for food testing, containing the following components: 100 ug/ml each of Acequinocyl [CAS:57960-19-7] ; Bromopropylate [CAS:18181-80-1] ; Carfentrazone-ethyl [CAS:128639-02-1] ; Chlorobenzilate [CAS:510-15-6] ; Chlorpropham [CAS:101-21-3] ; Chlozolinate [CAS:84332-86-5] ; Chlorthal-dimethyl [CAS:1861-32-1] ; Fluazifop-P-butyl [CAS:79241-46-6] ; Metalaxyl [CAS:57837-19-1] ; 2-Phenylphenol [CAS:90-43-7] in Toluene

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

Supplier: VWR Chemicals

Methanesulphonate 1,000 mg/l in water standard for ion chromatography, 1000 mg/l, VWR®, Contents: CH₃SO₃H in H₂O, Application: Ion chromatography standards

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VWR® ARISTAR®, Multi-Element Calibration Standard IV in dil. Nitric Acid for ICP

Supplier: VWR Chemicals

Multi-Element Standard, Multi-element calibration standard IV in dil. nitric acid for ICP, VWR® ARISTAR®, Application: ICP standards

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VWR®, Standard solution (1000 ppm SO₄) for the preparation of sulphate standard solution (10 ppm SO₄) R1 Reag. Ph. Eur. 5002801

Supplier: VWR Chemicals

Standard solution (1000 ppm SO₄) R1 Reag. Ph. Eur. 5002801, 1000 mg/l, VWR®, Contents: K₂SO₄ in H₂O, Application: Pharmaceutical standards

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VWR® ARISTAR®, Tungsten Standard Solution, 10000 mg/L W in Water (from W), Standard for ICP

Supplier: VWR Chemicals

W in H₂O tr.NH₄OH.

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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®, Low Temperature viscosity standards

Supplier: VWR Chemicals

Low Temperature viscosity standards have certified data for kinematic viscosity, dynamic viscosity and density for various low temperatures.

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VWR®, Turbidity standards Set

Supplier: VWR Chemicals

Turbidity standards in kit form or alternatively as formazine stock solutions which allows users to create their own defined standards.

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J.T.Baker® BAKER INSTRA-ANALYZED®, Copper Standard Solution, 1000 µg/l Cu, Reagent for AAS

Supplier: Avantor

Copper standard solution for AAS are prepared from metals and salts of 99,999% spectral purity.

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VWR®, Thiocyanate 1000 mg/L in Water standard for ion chromatography

Supplier: VWR Chemicals

Thiocyanate 1,000 mg/l in water standard for ion chromatography, 1000 mg/l, VWR®, Contents: NH₄SCN in H₂O, Application: Ion chromatography standards

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VWR® ARISTAR®, Nitrite Standard Solution, 1000 mg/L NO₂- in Water (from NaNO₂) Standard for Ion Chromatography

Supplier: VWR Chemicals

(NO₂ in H₂O).

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VWR® ARISTAR®, Phosphorus Standard Solution, 10000 mg/L P in Water (from (NH₄)PO₄H₂), Standard for ICP

Supplier: VWR Chemicals

NH₄H₂PO₄ in H₂O.

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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®, High temperature viscosity standards

Supplier: VWR Chemicals

High Temperature viscosity standards are ideal for the calibration and verification of glass capillary viscometers and other viscosity measuring equipment where operating temperature is controlled precisely.