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.
Barium standard solution
Supplier: HACH
Standard solution for accuracy checks in barium determinations.
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VWR®, Viscosity check oils
Supplier: VWR Chemicals
The viscosity values for certified viscosity check oils have been tested and certified at typical blend targets. These check oils are for validating the performance of cold cranking simulator and kinematic viscometers by measuring commercially available formulated engine oils.
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VWR®, Flash point reference standard, Abel Closed Cup, jet aviation fuel
Supplier: VWR Chemicals
Flash point Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Abel Closed Cup (IP 170, ISO 13736).
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VWR®, Tuning solution 1 in dil. nitric acid ARISTAR® for ICP-MS
Supplier: VWR Chemicals
8 Components in 2% HNO₃.
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VWR® ARISTAR®, Tuning Solution 2 in dil. Nitric Acid for ICP-MS
Supplier: VWR Chemicals
13 Components in 2% HNO₃.
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Nitrogen-ammonia standard solutions
Supplier: HACH
For accuracy checks in ammonia nitrogen determinations.
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VWR®, ICP multi-element solution
Supplier: VWR Chemicals
ICP solution of eight elements in 7% nitric acid.
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VWR®, Polynuclear Aromatic Hydrocarbons (PAH) Mix 3
Supplier: VWR Chemicals
PAH mix in acetonitrile, 16 components, VWR®
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Colour standards
Supplier: HACH
For accuracy checks in colour determinations.
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Total organic carbon standards
Supplier: HACH
For accuracy checks in total organic carbon (TOC) determinations. Available as 20 ml sealed ampules.
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Phosphorus standard solution
Supplier: HACH
Standard solution for accuracy checks in phosphorus determinations.
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Phosphate standard solutions
Supplier: HACH
Standard solution for accuracy checks in phosphate (phosphorus) determinations.
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VWR®, Smoke Point standard
Supplier: VWR Chemicals
Fuel testing Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Smoke Point ASTM D1322 / IP 57.
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Sodium Chloride Standard Solution, 491 mg/L NaCl (1000 µS/cm)
Supplier: HACH
Standard solution for standardisation and accuracy check in conductivity measurements.
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Standard solution set (potassium dichromate solutions) for calibration of UV/Visible spectrophotometers
Supplier: VWR Chemicals
A set for linearity check of the absorbance of spectrophotometers.
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VWR® ARISTAR®, ICP Multi-Element Solution, 4 Elements in Nitric Acid 7%
Supplier: VWR Chemicals
ICP multi-element solution according to USP 232 dietary supplements.
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Catalog #: 83639.320
Supplier: VWR Chemicals
Catalog #: 20864.320
Supplier: VWR Chemicals
Catalog #: 83640.320
Supplier: VWR Chemicals
Catalog #: 83645.320
Supplier: VWR Chemicals
Catalog #: 20060.320
Supplier: VWR Chemicals