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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.

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VWR® ARISTAR®, Multi-Element Quality Control Standard, 100 mg/L for 32 Elements in 5% Nitric Acid, for ICP

Supplier: VWR Chemicals

Multi-Element Standard, Multi-element quality control standard 100 mg/L {Ag; Al; Ba; Bi; Ca; Cd; Co; Cr; Cu; Fe; Ga; Ge; In; K; Li; Mg; Mn; Mo; Na; Nb; Ni; P; Pb; Re; Sb; Si; Sn; Ta; Ti; V; W; Zn} in nitric acid 5% ARISTAR® for ICP, VWR® ARISTAR®, Application: ICP standards

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

Supplier: VWR Chemicals

Cesium Standard, 1000 mg/L, VWR®, Cesium, Matrix: H₂O, Application: Ion chromatography standards

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VWR®, Gadolinium Standard Solution, 10000 mg/L Gd in dilute Nitric Acid (de Gd2O3), Standard for ICP

VWR®, Gadolinium Standard Solution, 10000 mg/L Gd in dilute Nitric Acid (de Gd₂O₃), Standard for ICP

Supplier: VWR Chemicals

Gd₂O₃ in HNO₃ 2 to 5%.

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VWR®, Holmium perchlorate standard solution for wavelength calibration of spectophotometers, Reag. Ph. Eur

Supplier: VWR Chemicals

Standard for spectrophotometer calibration, Holmium perchlorate standard solution, Reag. Ph. Eur, VWR®

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VWR® ARISTAR® Multi-Component Anion Mix 10, Avantor

Supplier: VWR Chemicals

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

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

Supplier: VWR Chemicals

Hafnium Standard, 1000 mg/L, VWR® ARISTAR®, Hafnium, Matrix: 2% HNO₃/0,5% HF, Application: ICP-MS standards

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VWR®, Small sample viscosity standards

Supplier: VWR Chemicals

These standards are certified in strict accordance with ASTM D2162 at 40 and 100 °C under ISO 17025 and ISO 17034 accreditation, and have been manufactured specifically for the users of ASTM D7279, Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids by Automated Houillon Viscometer and other similar type test equipment.

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VWR®, Organic reference standard, Benzo[a]pyrene 50 µg/ml in toluene

Supplier: VWR Chemicals

Organic Standard, Benzo[a]pyrene 50 µg/ml in toluene, 포장 유형: Glass ampoule

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VWR® ARISTAR®, Chloride Standard Solution, 200 mg/L Cl- in Water (from NaCl) Standard for Ion Chromatography

Supplier: VWR Chemicals

(Cl in H₂O).

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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® ARISTAR®, Silver Standard Solution, 10000 mg/L Ag in dil. Nitric Acid (from AgNO₃), Standard for ICP

Supplier: VWR Chemicals

AgNO₃ in HNO₃ 2 to 5%.

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VWR®, Organic reference standard, Aroclor 1242 (PCB-mixture, 42% chlorinated) 1000 µg/ml in hexane

Supplier: VWR Chemicals

Organic Standard, Aroclor 1242 (PCB-mixture, 42% chlorinated) 1,000 µg/ml in hexane, 포장 유형: Glass ampoule

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VWR® ARISTAR®, Arsenic Standard Solutions for ICP

Supplier: VWR Chemicals

As in HNO₃ 2 to 5%.

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VWR® ARISTAR®, Strontium Standard Solution, 10000 mg/L Sr in dil. Nitric Acid (from Sr(NO₃)₂), Standard for ICP

Supplier: VWR Chemicals

Sr(NO₃)₂ in HNO₃ 2 to 5%.

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VWR®, COD calibration standards, Certified Reference Materials (CRMs)

Supplier: VWR Chemicals

Avantor now offers a complete range of COD (Chemical Oxygen Demand) calibration standards (traceable to BAM) as CRM with concentrations between 20 and 10000 mg/L. Can be used to calibrate, control, verify or validate all COD test methods.