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® Conductivity standard, CRM, 5000 μS/cm

Supplier: VWR Chemicals

Directly traceable to NIST, tested and certified to ISO17025 and ISO 17034

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VWR® ARISTAR®, Nitrite Standard Solution, 200 mg/L Nitrite in Water (from NaNO₂) Standard for Ion Chromatography

Supplier: VWR Chemicals

NO₂ in H₂O.

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VWR® ARISTAR®, Selenium Standard Solutions for ICP-MS

Supplier: VWR Chemicals

Selenium Standard, 1000 mg/L, VWR® ARISTAR®, Selenium, Matrix: 2-5% HNO₃, Application: ICP-MS standards

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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®, Mineral Oil Rotational viscosity standards

Supplier: VWR Chemicals

Mineral Oil Rotational viscosity standards are specifically formulated for use with rotational viscometers and are dual-certified to ISO 17025 and ISO 17034 under UKAS.

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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®, Ethyl Acetate, 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®, Tin Standard Solution, 1000 mg/L Sn in dil. Nitric Acid with Hydrofluoric Acid (max. 1%) (from Sn), Standard for ICP

Supplier: VWR Chemicals

Sn in HNO₃ tr. HF.

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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® ARISTAR®, Boron Standard Solution, 1000 mg/L B in Ammonium Hydroxide Solution (max. 1%) (from B(OH₃)), Standard for ICP

Supplier: VWR Chemicals

B(OH)₃ in H₂O tr.NH₄OH.

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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®, 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® 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®, Cadmium Standard Solution, 1000 mg/L Cd in dil. Nitric Acid (from Cd), Standard for ICP

Supplier: VWR Chemicals

Cd in HNO₃ 2 to 5%.

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VWR® ARISTAR®, Platinum Standard Solution, 1000 mg/L Pt in 10% Hydrochloric Acid (from Pt), Standard for ICP

Supplier: VWR Chemicals

Pt in HCl 10%.

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VWR®, Residual solvent standards according to ICH guidelines

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.