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.

524 Results

Sort by

VWR®, Small sample viscosity standards

Supplier: VWR Chemicals

These standards are certified in strict accordance with ASTM D2162 at 40 and 100 °C under ISO 17025 and ISO 17034 accreditation, and have been manufactured specifically for the users of ASTM D7279, Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids by Automated Houillon Viscometer and other similar type test equipment.

Expand 1 Items

J.T.Baker® BAKER INSTRA-ANALYZED®, Copper Standard Solution, 1000 µg/l Cu, Reagent for AAS

Supplier: Avantor

Copper standard solution for AAS are prepared from metals and salts of 99,999% spectral purity.

Expand 1 Items

J.T.Baker® BAKER INSTRA-ANALYZED®, Aluminium AA Standard

Supplier: Avantor

The standard is prepared by the careful dilution of the metal or its salt, usually 99,99% pure as verified by arc emission spectrometry.

Expand 1 Items

VWR®, Fuel testing standards - gasoline

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.

Expand 2 Items

VWR®, ICP multi-element quality control standard 3 in dilute nitric acid ARISTAR® for ICP

Supplier: VWR Chemicals

In 5% nitric acid solution.

Expand 2 Items

VWR® ARISTAR®, ICP Quality Control Standard #1

Supplier: VWR Chemicals

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

Expand 2 Items

VWR® ARISTAR®, Multi-Element Calibration Standard 3 in Hydrochloric Acid 10% for ICP-MS

Supplier: VWR Chemicals

10 Elements in 10% Hydrochloric acid solution.

Expand 1 Items

J.T.Baker® BAKER INSTRA-ANALYZED®, Iron Standard Solution, 1,000 µg/l Fe, reagent for AAS

Supplier: Avantor

Iron standard solution for AAS are prepared from metals and salts of 99,999% spectral purity.

Expand 1 Items

J.T.Baker® BAKER INSTRA-ANALYZED®, Potassium Standard Solution reagent for AAS

Supplier: Avantor

Potassium standard solution for AAS are prepared from metals and salts of 99,999% spectral purity.

Expand 1 Items

VWR®, Diazinon 100 µg/ml in methanol, pesticide reference standard

Supplier: VWR Chemicals

Organic Standard, Diazinon 100 µg/ml in methanol, Pack type: Glass ampoule

Expand 1 Items

VWR®, Colour standard solutions ASTM

Supplier: VWR Chemicals

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

Expand 7 Items

VWR® ARISTAR®, Multi-Element Calibration Standard 4 in Water with a Trace of Hydrofluoric Acid for ICP-MS

Supplier: VWR Chemicals

(12 Elements in H₂O with trace of HF ).

Expand 1 Items

VWR®, Organic reference standard, Benzo[a]pyrene 50 µg/ml in toluene

Supplier: VWR Chemicals

Organic Standard, Benzo[a]pyrene 50 µg/ml in toluene, Pack type: Glass ampoule

Expand 1 Items

VWR®, Organic reference standard, Chloroethane 200 µg/ml in methanol

Supplier: VWR Chemicals

Organic Standard, Chloroethane 200 µg/ml in methanol, Pack type: Glass ampoule

Expand 1 Items

VWR® PESTINORM®, GC Multiresidue Pesticide Standard (Mix 2) - 40 components, CRM

Supplier: VWR Chemicals

A standard mixture, typically used for food testing, containing the following components: 100 ug/ml each of Aldrin [CAS:309-00-2] ; Alpha-HCH [CAS:319-84-6] ; Beta-HCH [CAS:319-85-7] ; Delta-HCH [CAS:319-86-8] ; Gamma-HCH (Lindane) [CAS:58-89-9] ; Chlorbenside [CAS:103-17-3] ; cis-Chlordane [CAS:5103-71-9] ; trans-Chlordane [CAS:5103-74-2] ; Chlorfenson [CAS:80-33-1] ; Chloroneb [CAS:2675-77-6] ; 2,4'-DDD [CAS:53-19-0] ; 4,4'-DDD (TDE) [CAS:72-54-8] ; 2,4'-DDE [CAS:3424-82-6] ; 4,4'-DDE [CAS:72-55-9] ; 2,4'-DDT [CAS:789-02-6] ; 4,4'-DDT [CAS:50-29-3] ; 4,4'-Dichlorobenzophenone [CAS:90-98-2] ; Dieldrin [CAS:60-57-1] ; Endosulfan-alpha [CAS:959-98-8] ; Endosulfan-beta [CAS:33213-65-9] ; Endosulfan-ether [CAS:3369-52-6] ; Endosulfan-total (sulfate) [CAS:1031-07-8] ; Endrin [CAS:72-20-8] ; Endrin aldehyde [CAS:7421-93-4] ; Endrin ketone [CAS:53494-70-5] ; Perthane [CAS:72-56-0] ; Fenson [CAS:80-38-6] ; Heptachlor [CAS:76-44-8] ; Heptachlor-exo-epoxide [CAS:1024-57-3] ; Hexachlorobenzene [CAS:118-74-1] ; Isodrin [CAS:465-73-6] ; o,p'-Methoxychlor-olefin [CAS:30667-99-3] ; 4,4'-Methoxychlor olefin [CAS:2132-70-9] ; Mirex [CAS:2385-85-5] ; cis-Nonachlor [CAS:5103-73-1] ; trans-Nonachlor [CAS:39765-80-5] ; Pentachloroanisole [CAS:1825-21-4] ; Pentachlorobenzene [CAS:608-93-5] ; Methyl-pentachlorophenyl sulfide [CAS:1825-19-0] ; Tetradifon [CAS:116-29-0] in Toluene