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.

$VWR®, Refractive index standard kits for calibration according to Ph. Eur. 2.2.6$

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® ARISTAR®, Tin Standard Solution, 10000 mg/L Sn in dil. Nitric Acid with Hydrofluoric Acid (max. 1%) (from Sn), Standard for ICP

Supplier: VWR Chemicals

Sn in HNO₃ tr. HF.

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VWR®, Conductivity standard 1000 µS/cm (25 °C; 0,007 mol/L; KCl) for conductivity measurement

Supplier: VWR Chemicals

Directly traceable to NIST, tested and certified to ISO17025.

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VWR® ARISTAR®, Multi-Element Quality Control Standard, 10 mg/L for 36 Elements in 2% Nitric Acid , for ICP-MS

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

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VWR®, Relative Density standards within the range of 15 to 25 °C

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.

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VWR® ARISTAR®, ICP Multi-Element Calibration Standard 3 in dilute Nitric Acid

Supplier: VWR Chemicals

In 2% nitric acid solution.

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VWR® ARISTAR®, Cobalt Standard Solution, for ICP, 1000 mg/L Co in dil. Nitric Acid (from Co)

Supplier: VWR Chemicals

Co in HNO₃ 2 to 5%.

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VWR® PESTINORM®, GC Multiresidue Pesticide Standard (Mix 3) - 25 components, CRM

Supplier: VWR Chemicals

A standard mixture, typically used for food testing, containing the following components: 100 ug/ml each of Benfluralin [CAS:1861-40-1] ; Biphenyl [CAS:92-52-4] ; Chlorothalonil [CAS:1897-45-6] ; Dichlofluanid [CAS:1085-98-9] ; Dicloran [CAS:99-30-9] ; 3,4-Dichloroaniline [CAS:95-76-1] ; Dichlobenil [CAS:1194-65-6] ; Diphenylamine [CAS:122-39-4] ; Ethalfluralin [CAS:55283-68-6] ; Fluchloralin [CAS:33245-39-5] ; Isopropalin [CAS:33820-53-0] ; Nitralin [CAS:4726-14-1] ; Nitrofen [CAS:1836-75-5] ; Oxyfluorfen [CAS:42874-03-3] ; Pendimethalin [CAS:40487-42-1] ; Pentachloroaniline [CAS:527-20-8] ; Pentachlorobenzonitrile [CAS:20925-85-3] ; Quintozene [CAS:82-68-8] ; Prodiamine [CAS:29091-21-2] ; Profluralin [CAS:26399-36-0] ; 2,3,5,6-Tetrachloroaniline [CAS:3481-20-7] ; Tecnazene [CAS:117-18-0] ; cis-1,2,3,6-Tetrahydrophthalimide [CAS:1469-48-3] ; Tolylfluanid [CAS:731-27-1] ; Trifluralin [CAS:1582-09-8] in Toluene / Acetonitrile (99/1)

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VWR®, Organic reference standard, Phenol Mix 1, EPA 604

Supplier: VWR Chemicals

Organic Standard, Phenol Mix 1, EPA 604, Pack type: Vial

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VWR®, Titanium standard solution, 1000 mg/L Ti in water with hydrofluoric acid (max. 1%) (from (NH4)2TiF6) ARISTAR® standard for ICP

VWR®, Titanium standard solution, 1000 mg/L Ti in water with hydrofluoric acid (max. 1%) (from (NH₄)₂TiF₆) ARISTAR® standard for ICP

Supplier: VWR Chemicals

(NH₄)₂ TiF₆ in H₂O tr. HF.

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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® PESTINORM®, LC Multiresidue Pesticide Standard (Mix 5) - 30 components, CRM

Supplier: VWR Chemicals

A standard mixture, typically used for food testing, containing the following components: 100 ug/ml each of Acibenzolar-S-methyl [CAS:135158-54-2] ; Bupirimate [CAS:41483-43-6] ; Buprofezin [CAS:69327-76-0] ; Carboxin [CAS:5234-68-4] ; Clethodim [CAS:99129-21-2] ; Clothianidin [CAS:210880-92-5] ; Cyazofamid [CAS:120116-88-3] ; Ethiprole [CAS:181587-01-9] ; Ethofumesate [CAS:26225-79-6] ; Fenamidone [CAS:161326-34-7] ; Fipronil [CAS:120068-37-3] ; Flubendiamide [CAS:272451-65-7] ; Flufenacet [CAS:142459-58-3] ; Hexythiazox [CAS:78587-05-0] ; Mefenacet [CAS:73250-68-7] ; Mesotrione [CAS:104206-82-8] ; Methoprotryne [CAS:841-06-5] ; Metribuzin [CAS:21087-64-9] ; Prometryn [CAS:7287-19-6] ; Propargite [CAS:2312-35-8] ; Prothioconazole [CAS:178928-70-6] ; Pyridaben [CAS:96489-71-3] ; Simetryn [CAS:1014-70-6] ; Sulfentrazone [CAS:122836-35-5] ; Terbutryn [CAS:886-50-0] ; Thiabendazole [CAS:148-79-8] ; Thiacloprid [CAS:111988-49-9] ; Thiamethoxam [CAS:153719-23-4] ; Thiofanox [CAS:39196-18-4] ; Tricyclazole [CAS:41814-78-2] in Acetonitrile