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®, Gardner colour standards
Supplier: VWR Chemicals
Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis that are designed for grading the colour of similarly coloured liquids, such as resins, varnishes, lacquers, drying oils, fatty acids, lecithin's, sunflower and linseed oil.
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VWR® AVS TITRINORM, Iridium Standard Solution, 1,000 mg/L Ir in 10% Hydrochloric Acid AVS TITRINORM Standard for AAS
Supplier: VWR Chemicals
Iridium Standard, 1000 mg/L, VWR® AVS TITRINORM, Iridium, Matrix: 10% HCl, Application: AAS standards
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VWR® ARISTAR®, Rhodium Standard Solution, 1000 mg/l Rh in 10% Hydrochloric Acid (from RhCl3), Standard for ICP
Supplier: VWR Chemicals
RhCl₃.3H₂O in HCl 10%.
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VWR® ARISTAR®, Gadolinium Standard Solution, 1000 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® ARISTAR®, Boron Standard Solution, 10000 mg/L B in Ammonium Hydroxide Solution (max. 1%) (from B(OH₃)), Standard for ICP
Supplier: VWR Chemicals
H₃BO₃ in H₂O tr. NH₄OH.
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VWR®, Silicon standard solution, 10000 mg/L Si in water with hydrofluoric acid (max. 1%) (from (NH4)2SiF6) ARISTAR® standard for ICP
Supplier: VWR Chemicals
(NH₄)₂ SiF₆ in H₂O tr. HF.
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VWR® ARISTAR®, Niobium Standard Solution, 1000 mg/L Nb in Water with Hydrofluoric Acid (max. 1%) (from Nb₂O₅), Standard for ICP
Supplier: VWR Chemicals
Nb₂O₅ in H₂O tr. HF.
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VWR® AVS TITRINORM, Germanium Standard Solution, 1000 mg/L Ge in 5% Nitric Acid with hydrofluoric Acid (max. 1%) AVS TITRINORM Standard for AAS
Supplier: VWR Chemicals
Germanium Standard, 1000 mg/L, VWR® AVS TITRINORM, Germanium, Matrix: 5% HNO₃/tr HF, Application: AAS standards
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VWR®, B100 (biodiesel) blank, biodiesel 100
Supplier: VWR Chemicals
B100 (biodiesel) blank, VWR®, Glass bottle
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VWR®, Total Base Number (TBN) standards
Supplier: VWR Chemicals
Total Base Number (TBN) standards are specifically manufactured for the verification of analytical instruments used to determine base number by potentiometric titration. Each standard is certified in strict accordance with international test method protocols, ASTM D2896 / IP 276.
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VWR®, UV/Visible spectroscopy stray light standards
Supplier: VWR Chemicals
Stray light standards packed in permanently sealed UV cuvettes or 100 ml amber bottle.
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VWR®, 2,4-Dichlorophenoxyacetic acid, Certified Reference Material
Supplier: VWR Chemicals
Pesticides are usually chemical or biological substances that are used to prevent, destroy or mitigate any pests. Pesticides are released into the environemnet in order to eliminate these pests, but residues from these toxic chemicals also end up in the air, water, and even in food.
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VWR® ARISTAR®, Cobalt Standard Solutions for ICP-MS
Supplier: VWR Chemicals
Cobalt Standard, 10000 mg/L, VWR® ARISTAR®, Cobalt, Matrix: 2-5% HNO₃, Application: ICP-MS standards
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VWR®, Thiosulphate 1000 mg/L in amylic alcohol standard for ion chromatography
Supplier: VWR Chemicals
Thiosulphate standard solution, 1000 mg/L, VWR®, Matrix: Amyl Alcohol, Application: Ion chromatography standards
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VWR®, Low Temperature viscosity standards
Supplier: VWR Chemicals
Low Temperature viscosity standards have certified data for kinematic viscosity, dynamic viscosity and density for various low temperatures.
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VWR®, NexION Setup Solution, 8 Elements: 1 ug/l each of Be, Ce, Fe, in, Li, Mg, Pb, U in 1% HNO₃
Supplier: VWR Chemicals
Multi-Element Standard, NexION Setup Solution (8 Elements), VWR®, 1 ug/l each of Be, Ce, Fe, in, Li, Mg, Pb, U, Matrix: 1% HNO₃, Application: ICP-MS standards
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#: 20864.320
Supplier: VWR Chemicals
#: 83640.320
Supplier: VWR Chemicals
#: 31770.294
Supplier: VWR Chemicals
#: 83645.320
Supplier: VWR Chemicals
#: 20060.320
Supplier: VWR Chemicals