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®, 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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Hardness standard solution, APA6000

Supplier: HACH

Hardness standard solution, 0,50 mg/l as CaCO₃ traceable to NIST.

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Standards for the ammonia and monochloramine analyser, APA6000

Supplier: HACH

These are used as part of the standard kit for both APA 6000 ammonia and ammonia/monochloramine analyser instruments.

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Arsenic standard solution

Supplier: HACH

Standard solution for accuracy checks in arsenic determinations.

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VWR® ARISTAR® Multi-Component Anion Mix 9, Avantor

Supplier: VWR Chemicals

Two solutions - a nitrite standard solution and a 6 component multi-element standard solution.

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J.T.Baker® BAKER INSTRA-ANALYZED®, Aluminium AA Standard

Supplier: Avantor

The standard is prepared by the careful dilution of the metal or its salt, usually 99,99% pure as verified by arc emission spectrometry.

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J.T.Baker® BAKERBOND Speedisk®, Oil and Grease Standards Kit

Supplier: Avantor

Mixture (51 ml/bottle) of 2 mg/ml stearic acid and 2 mg/ml n-hexadecane in ULTRA RESIANALYZED acetone.

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VWR® Nitrosamines Standards

Supplier: VWR Collection

VWR range of Nitrosamine Reference Materials: Nitrosamines are a class of chemical compounds, some of which are considered carcinogenic, and are found as impurities in various products, including pharmaceuticals and food. Reference materials for nitrosamines are crucial for research, quality control, and regulatory compliance in industries such as pharmaceuticals and food production. These Reference materials are used to develop and validate analytical methods for detecting and quantifying nitrosamines.

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Volatile acid standards

Supplier: HACH

Acetate standard solution for accuracy checks in volatile acids determinations.

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VWR® ARISTAR®, Multi-Element Calibration Standard 1 in dil. Nitric Acid for ICP-MS

Supplier: VWR Chemicals

17 Elements in 5% nitric acid solution.

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COD calibration standard solutions (NIST traceable)

Supplier: HACH

COD standard solution (NIST), 300 mg/l

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VWR®, Colour standards, Saybolt

Supplier: VWR Chemicals

Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis.

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Tubidity standards for 2100A

Supplier: HACH

Stablcal Stabilised Formazin Turbidity Standards are true formazin dilutions developed for use in any turbidimeter.

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VWR®, Benzene 200 µg/ml in methanol, organic reference standard

Supplier: VWR Chemicals

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

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VWR®, Chlorpyrifos, pesticide reference standard, 100 µg/ml in methanol

Supplier: VWR Chemicals

Organic Standard, Chlorpyrifos 100 µg/ml in methanol, Pack type: Glass ampoule

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VWR®, Primary colour solutions, Reagent Ph. Eur.

Supplier: VWR Chemicals

Complete range of reagents and standard solutions in Chapters 2 and 4 of the current European Pharmacopoeia.
All are manufactured and tested in compliance with the Ph. Eur. and are supplied with detailed Certificates of Analysis showing batch number, and expiry date.