You searched for: Standards

Supplier: VWR Chemicals

Linearity standards packed in permanently sealed UV cuvettes or 100 ml amber bottles.

Supplier: VWR Chemicals

Multi-component standard with 0,1 mg/ml of each component in methanol.

Supplier: VWR Chemicals

Multi-Element Standard, Multi-element quality control standard 100 mg/L {Ag; Al; Ba; Bi; Ca; Cd; Co; Cr; Cu; Fe; Ga; Ge; In; K; Li; Mg; Mn; Mo; Na; Nb; Ni; P; Pb; Re; Sb; Si; Sn; Ta; Ti; V; W; Zn} in nitric acid 5% ARISTAR® for ICP, VWR® ARISTAR®, Application: ICP standards

Supplier: VWR Chemicals

Organic Standard, Malathion (1,2-Bis(ethoxycarbonyl)ethyl O,O-dimethyl phosphorodithioate) 100 µg/ml in methanol, Pack type: Glass ampoule

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.

Supplier: VWR Chemicals

23 Elements 5% nitric acid solution with trace of HF.

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

Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis.

Supplier: VWR Chemicals

Pour Point Certified Reference Materials for the verification of laboratory instruments used in testing petroleum and derivative products for Pour Point to ASTM D97, IP 15, ISO 3016 and other equivalent international test methodologies.

Supplier: VWR Chemicals

Total Acid Number (TAN) standards are specifically manufactured for the verification of analytical instruments used to determine acid number by potentiometric titration. Each standard is certified in strict accordance with international test method protocols, ASTM D664 / IP 177.

Supplier: VWR Chemicals

In 5% nitric acid solution with trace of HF.

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.

Supplier: VWR Chemicals

Fuel testing Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Octane Number.

Supplier: VWR Chemicals

17 components.

Supplier: VWR Chemicals

Directly traceable to NIST, tested and certified to ISO17025.

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

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

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

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.'

Supplier: VWR Chemicals

Multi-Element Standard, Multi-element quality control standard 10 mg/L {Al; Ag; As; B; Ba; Ca; Cd; Ce; Co; Cr; Cu; Dy; Er; Eu; Fe; Gd; Ho; K; La; Li; Lu; Mg; Mn; Na; Nd; Ni; P; Pb; Rb; Se; Sm; Sr; Tl; Tm; V; Zn} in nitric acid 2% ARISTAR® for ICP-MS, VWR® ARISTAR®, Application: ICP-MS standards

Supplier: VWR Chemicals

6 components: Lithium (Li+) 50 mg/l, Sodium (Na+) 200 mg/l, Ammonium (NH4+) 250 mg/l, Potassium (K+) 500 mg/l, Calcium (Ca2+) 500 mg/l, Magnesium (Mg2+) 250 mg/l in H₂O

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

Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis.

Supplier: VWR Chemicals

Wavelength standards (certified at 0,1; 0,2; 0,5; 1 and 2 nm slit widths) packed in six permanently sealed UV cuvettes or 100 ml amber bottles.

Supplier: MACRON AVANTOR BRAND

Corrosive.

Supplier: VWR Chemicals

The level of volatile organic solvents in pharmaceutical raw materials or finished product is defined and monitored. Residual solvents are classified according to their risk assessment classes. A selection of residual solvent standards is now available from Avantor.

Supplier: VWR Chemicals

Organic Standard, α-Endosulfan Certified Reference Material, Pack type: Glass ampoule

Supplier: VWR Chemicals

7 components: 100 mg/l each of Chlorides (Cl-), Fluorides (F-), Sulphates (SO42-), Nitrates (NO3-), Nitrites (NO2-), Bromides (Br-), Phosphates (PO43-) in H₂O

Supplier: VWR Chemicals

Fuel testing Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Cetane Number ISO 5165 / EN 61715.

Supplier: VWR Chemicals

Due to its excellent separation capacity and its high sensitivity gas chromatography is a widely used technique for analytical purposes. In order to get proper identification and quantification results of the analysed compounds, reference standards are needed. These PESTINORM® reference substances can be used for the characterisation of GC column properties. In addition they may also be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis.