You searched for: 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.
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®, Redox (ORP) Standards
Supplier: VWR Chemicals
Avantor offers a wide range of REDOX (ORP) standards, which are produced from high quality reagents.These reference materials can be used as control standards to check the functionality of both the elextrodes and the measuring instruments. The values are temperature dependent, so it is important to control the environment of the measurement. A table of temperatue and corresponding Redox value is available on both the label and the batch specific certificate.
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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® Conductivity standard, CRM, 5000 μS/cm
Supplier: VWR Chemicals
Directly traceable to NIST, tested and certified to ISO17025 and ISO 17034
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VWR®, Conductivity standards at 25 °C, potassium chloride solutions
Supplier: VWR Chemicals
KCl 0,01 mol/L, VWR®, 1,41 mS/cm, Reference temperature: 25 °C
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VWR®MCT 100 and MCP 100, Reference standard kits for chlorine photometers
Supplier: VWR Chemicals
The reference standards are designed to check the accuracy and the reliability of the results. They are meant to provide reassurance that the photometer is working correctly.
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VWR®, Colour reference solutions acc. to Ph. Eur., ready to use
Supplier: VWR Chemicals
These solutions are developed and produced according to chapter 2.2.2. 'Degree of colouration of liquids' of the European Pharmacopoeia. (brown, brown-yellow, green-yellow, red and yellow). These kits are ready to use, and are dedicated to help you save time and money because preparation of these solutions is very complex.
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VWR®, Primary colour solutions, Reagent Ph. Eur.
Supplier: VWR Chemicals
Complete range of reagents and standard solutions in Chapters 2 and 4 of the current European Pharmacopoeia.
All are manufactured and tested in compliance with the Ph. Eur. and are supplied with detailed Certificates of Analysis showing batch number, and expiry date.
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VWR®, Colour standard solutions, Reag. Ph. Eur.
Supplier: VWR Chemicals
Ready to use colour solutions according to Reag. Ph. Eur.
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VWR®, Certified Reference Material, Pensky Martens 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. PMCC flash point standards are tested and certified in accordance with ASTM D93 'Standard Test Method for Flash Point by Pensky Martens Closed Cup Tester - Procedure A'
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VWR®, Sulphur, Certified Reference Materials, in synthetic diesel
Supplier: VWR Chemicals
Sulphur CRMs are suitable for calibration, verification or for use in quality control procedures used for analysing sulphur content in petroleum products.
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VWR®, Sulphur, Certified Reference Materials, in isooctane
Supplier: VWR Chemicals
Sulphur CRMs are suitable for calibration, verification, or for use in quality control procedures used for analysing sulphur content in petroleum products.
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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.'
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VWR®, Sulphur, Certified Reference Materials, in light mineral oil
Supplier: VWR Chemicals
Sulphur CRMs are suitable for calibration, verification, or for use in quality control procedures used for analysing sulphur content in petroleum products.
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VWR®, Sulphur, Certified Reference Materials, in heavy mineral oil
Supplier: VWR Chemicals
Sulphur CRMs are suitable for calibration, verification or for use in quality control procedures used for analysing sulphur content in petroleum products.
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VWR®, Synthetic Sea Water Analytical Reagent manufactured in accordance with ASTM D665 / IP 135
Supplier: VWR Chemicals
A high quality analytical reagent manufactured and certified compliant for use in ASTM D 665 / IP 135 the Standard Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water.
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VWR®, Sulphur, Certified Reference Materials, in odourless kerosene
Supplier: VWR Chemicals
Sulphur CRMs are suitable for calibration, verification or for use in quality control procedures used for analysing sulphur content in petroleum products.
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VWR®, Refractive index Certified Reference Material at 20, 25 and 30 °C
Supplier: VWR Chemicals
Refractive index Certified Reference Materials (CRMs) are ideal for verification and calibration of temperature controlled refractometers, with each CRM providing certified values for refractive index measurements at 20, 25 and 30 °C.
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VWR®, Polysulphide, Certified Reference Materials, in light, mineral oil
Supplier: VWR Chemicals
Polysulphide CRMs are suitable for calibration, verification, or for use in quality control procedures used for analysing sulphur content in petroleum products.
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VWR®, Multi-Parameter Refractive Index and Density Certified Reference Material At 15, 20 and 25 °C
Supplier: VWR Chemicals
The Refractive Index and Density Certified Reference Materials provide a flexible, cost-effective and efficient solution to any laboratory calibrating and/or verifying refractive index and density measurements – all from a single material.
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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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VWR®, Diesel and lubricant, multi-parameter Certified Reference Materials (MPCRM)
Supplier: VWR Chemicals
MPCRM’s provide both calibration and verification options for laboratory test equipment, all from the same sample, with their values certified to the highest level of accreditation integrity available globally.
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Supplier: VWR Collection
Supplier: VWR Collection
Supplier: VWR Collection
Supplier: VWR Collection