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.
VWR®, Refractive index standard kits for calibration according to Ph. Eur. 2.2.6
Supplier: VWR Chemicals
These standards are for the calibration of refractometers prior to use.
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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, 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, Pack type: Glass ampoule
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VWR®, Density standards, Certified Reference Materials, referenced at 15 °C
Supplier: VWR Chemicals
VWR® Chemicals ISO 17025/ISO 17034 dual certified-density standards are for the verification of instruments used to measure the density of materials which are fluid at the desired test temperature.
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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® AVS TITRINORM, Ruthenium Standard Solution, 1000 mg/L Ru in 5% Hydrochloric Acid, Standard for AAS
Supplier: VWR Chemicals
Ruthenium Standard, 1000 mg/L, VWR® AVS TITRINORM, Ruthenium, Matrix: 5% HCl, Application: AAS standards
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VWR®, Platinum standard solution, 1,000 mg/L Pt in 10% hydrochloric acid AVS TITRINORM standard for AAS
Supplier: VWR Chemicals
Platinum Standard, 1000 mg/L, VWR®, Platinum, Matrix: 10% HCl, Application: AAS standards
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VWR® ARISTAR®, Hafnium Standard Solutions for ICP-MS
Supplier: VWR Chemicals
Hafnium Standard, 10 mg/L, VWR® ARISTAR®, Hafnium, Matrix: 2% HNO₃/0,5% HF, Application: ICP-MS standards
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VWR®, Lithium 1000 mg/L in water standard for ion chromatography
Supplier: VWR Chemicals
Lithium Standard, 1000 mg/L, VWR®, Lithium, Matrix: H₂O, Application: Ion chromatography standards
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VWR® ARISTAR®, Multi-Element Standards, Cationic for Ion Chromatography
Supplier: VWR Chemicals
Multi-Element Standard, Ion chromatography cation multi-element standard solution VI, 10 - 100 mg/L
NH₄+, K+, Na+, Ca2+, Mg2+, VWR® ARISTAR®, Application: Ion chromatography standards
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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®, Organic reference standard, Chloroethylene 200 µg/ml in methanol
Supplier: VWR Chemicals
Organic Standard, Chloroethylene 200 µg/ml in methanol, Pack type: Glass ampoule
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VWR® ARISTAR®, Barium Standard Solution, 10000 mg/L Ba in dil. Nitric Acid (from Ba(NO₃)₂), Standard for ICP
Supplier: VWR Chemicals
Ba(NO₃)₂ in HNO₃ 2 to 5%.
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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®, N,N-Dimethylformamide, secondary reference standard for GC, PESTINORM®
Supplier: VWR Chemicals
A secondary GC solvent reference standard for various chromatographic and analytical applications.
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VWR®, Certified Reference Material, Cleveland Open Cup 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. COC flash point standards are tested and certified in accordance with ASTM D92 'Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester.'