You searched for: Standards

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.

Supplier: VWR Chemicals

Ho₂O₃ in HNO₃ 2 to 5%.

Supplier: VWR Chemicals

Sr(NO₃)₂ in HNO₃ 2 to 5%.

Supplier: VWR Chemicals

Sc₂O₃ in HNO₃ 2 to 5%.

Supplier: VWR Chemicals

PO₄ in H₂O.

Supplier: VWR Chemicals

CRM's - secondary reference materials intended for standardisation of volumetric solutions in accordance with the Pharmacopoeia (Ph. Eur. and USP). These volumetric standards are prepared from high purity salts. Certified mass fraction is determined by classical analysis according to ISO/IEC 17025. Homogeneity and stability studies have been performed according to the requirements of ISO 17034 and ISO Guide 35. All volumetric standards are traceable to SI (NIST or BAM).

Supplier: VWR Chemicals

Fuel testing Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products. This includes, but is not limited to, the analysis and measurement of: Acidity content, sulphur content, aniline point, Fluorescent Indicator Adsorption (FIA) aromatics, freezing point.

Supplier: VWR Chemicals

Chromate (in Cr(VI)) standard solution, 1000 mg/l, VWR®, Matrix: H₂O, Contents: (NH₄)₂Cr₂O₇ in water, Application: Ion chromatography standards

Supplier: VWR Chemicals

Cloud Point Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for Cloud Point according to IP 219, ISO 3015, EN 23015, ASTM D2500 and other equivalent test methodology.

Supplier: VWR Chemicals

Cation in dilute HNO₃.

Supplier: VWR Chemicals

29 Elements in 5% nitric acid solution.

Supplier: VWR Chemicals

Stabilised with BHT (2,6-Di-tert-butyl-p-cresol, 2,6-Di-tert-butyl-4-methylphenol, Ionol) 20 ppm. A secondary GC solvent reference standard for various chromatographic and analytical applications.

Supplier: VWR Chemicals

These standards can be used with any melting point apparatus and are prepared using pure raw materials. Melting points are determined using a high accuracy Differential Scanning Calorimeter (DSC) system that is calibrated to the ITS 90 International Temperature Scale.

Supplier: Avantor

Prepared by dissolution of platinum metal of 99,98% spectral purity

Supplier: VWR Chemicals

Distillation Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for distillation at atmospheric pressure according to ASTM D86, IP 123, ISO 3405 and other such equivalent international methodology.

Supplier: VWR Chemicals

33 elements 100 mg/L: Al, Ag, As, B, Ba, Be, Bi, Ca, Cd, Cs, Co, Cr, Cu, Fe, In, K, Li, Mg, Mn, Mo, Na, Ni, Nb, Pb, Rb, Sb, Se, Sr, Ti, Tl, V, U, Zn.

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.

Supplier: VWR Chemicals

Density Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for density in accordance with methodology, but not limited to, such as ASTM D4052, IP 365 and other equivalent international methodology.

Supplier: MACRON AVANTOR BRAND

Corrosive.

Supplier: VWR Chemicals

VWR® offers a complete range of products for the determination of the hydrocarbon oil index (HOI) in accordance with EN ISO 9377-2 (DIN H53).

Supplier: VWR Chemicals

This range of relative density standards are certified in accordance with primary level ASTM D1480 methodology, and are dual-certified to ISO 17025 / ISO 17034 under UKAS accreditation. Relative Density standards are designed for the calibration or verification of instruments used to measure density and relative density of materials at the desired test temperature within the range of 15 to 25 °C.

Supplier: VWR Chemicals

Silicone Rotational viscosity standards are specifically formulated for use with equipment with minimal temperature control. Supplied in 600 ml 'ready to use' packs specially designed to eliminate cleaning of laboratory glassware, which is inherently difficult due to the nature of silicone.

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.

Supplier: VWR Chemicals

28 elements 1 mg/L: Al, Ag, As, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn.

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).

Supplier: VWR Chemicals

KCl 0,01 mol/L, VWR®, 1,41 mS/cm, Reference temperature: 25 °C

Supplier: VWR Chemicals

Cold Filter Plugging Point (CFPP) Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for Cold Filter Plugging Point (CFPP) according to IP 309, EN 116 and ASTM D6371 also other equivalent test methodology.

Supplier: VWR Chemicals

Flow Cup viscosity standards are specifically formulated for use with viscosity flow cups such as Ford, Shell and Zahn.

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.

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.