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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.

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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$VWR®, Refractive index Certified Reference Material at 20, 25 and 30 °C$

VWR®, Refractive index Certified Reference Material at 20, 25 and 30 °C

Supplier: VWR Chemicals

Refractive index Certified Reference Materials (CRMs) are ideal for verification and calibration of temperature controlled refractometers, with each CRM providing certified values for refractive index measurements at 20, 25 and 30 °C.

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VWR®, Fuel testing standards - jet aviation fuel

Supplier: VWR Chemicals

Fuel testing Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products. This includes, but is not limited to, the analysis and measurement of: Acidity content, sulphur content, aniline point, Fluorescent Indicator Adsorption (FIA) aromatics, freezing point.

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VWR®, Pour Point standards

Supplier: VWR Chemicals

Pour Point Certified Reference Materials for the verification of laboratory instruments used in testing petroleum and derivative products for Pour Point to ASTM D97, IP 15, ISO 3016 and other equivalent international test methodologies.

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ARISTAR®VWR® , Potassium Standard Solution, 10000 mg/l K in dil. Nitric Acid (from KNO3), Standard for ICP

ARISTAR®VWR® , Potassium Standard Solution, 10000 mg/l K in dil. Nitric Acid (from KNO₃), Standard for ICP

Supplier: VWR Chemicals

KNO₃ in HNO₃ 2 to 5%.

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ARISTAR®VWR® , Indium Standard Solution, 10000 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®, 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.

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VWR®, Flash point reference standard, Abel Closed Cup, jet aviation fuel

Supplier: VWR Chemicals

Flash point Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Abel Closed Cup (IP 170, ISO 13736).

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VWR®, Certified Reference Material, Pensky Martens flash point

Supplier: VWR Chemicals

Flash point Certified Reference Materials are for the verification of laboratory flash point instruments that are used in testing petroleum and derivative products. 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®, 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.