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® ARISTAR®, Platinum Standard Solution, 1000 mg/L Pt in 10% Hydrochloric Acid (from Pt), Standard for ICP
Supplier: VWR Chemicals
Pt in HCl 10%.
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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® AVS TITRINORM, Lithium Standard Solution, 1000 mg/L Li in dil. Nitric Acid AVS TITRINORM Standard for AAS
Supplier: VWR Chemicals
Lithium Standard, 1000 mg/L, VWR® AVS TITRINORM, Lithium, Matrix: 2% HNO₃, Application: AAS standards
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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®, Residual solvent standards according to ICH guidelines
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.
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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® 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®, Palladium Standard Solution, 1000 mg/l Pd in 10% Hydrochloric Acid (from Pd), Standard for ICP
Supplier: VWR Chemicals
Pd in HCl 10%.
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ARISTAR®VWR® , Manganese Standard Solution, 1000 mg/L Mn in dil. Nitric Acid (from Mn(OAc)₂), Standard for ICP
Supplier: VWR Chemicals
Mn(C₂H₃O₂)₂ in HNO₃ 2 to 5%.
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VWR®, COD calibration standards
Supplier: VWR Chemicals
These standards are ideal to use as control standards for COD measurements to verify that correct analysis for COD has taken place.
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VWR® ARISTAR®, Thallium Standard Solution, 10000 mg/L Tl in dil. Nitric Acid (from Tl), Standard for ICP
Supplier: VWR Chemicals
Tl in HNO₃ 2 to 5%.
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VWR® ARISTAR®, Tin Standard Solution, 1000 mg/L Sn in dil. Nitric Acid with Hydrofluoric Acid (max. 1%) (from Sn), Standard for ICP
Supplier: VWR Chemicals
Sn in HNO₃ tr. HF.
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VWR®, Sucrose (Brix) standards, stabilised solutions for refractometry
Supplier: VWR Chemicals
A range of Brix/refractive index standards for ease of use when calibrating all types of refractometers.
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#: 20864.320
Supplier: VWR Chemicals
#: 83640.320
Supplier: VWR Chemicals
#: 31770.294
Supplier: VWR Chemicals
#: 83645.320
Supplier: VWR Chemicals