표준 물질

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®, 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®, Viscosity standards

Supplier: VWR Chemicals

These standards can be used for calibration, control, verification, qualification or method validation of kinematic and dynamic viscosity measurement instruments (both manual and automatic). Each standard is certified for kinematic viscosity (mm²/s, cSt), dynamic viscosity (cP) and density (g/ml) at a range of temperatures.

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80 °C 밀도 표준

Supplier: VWR Chemicals

이 제품은 pycnometric, 진동계 또는 비중계 기반 기술에 의한 밀도 측정을 위한 교정 표준으로 사용될 수 있습니다.

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VWR® ARISTAR®, Nitrate Standard Solution, 1000 mg/L NO₃ in Water (from NaNO₃) Standard for Ion Chromatography

Supplier: VWR Chemicals

NO₃ in H₂O.

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VWR®, Total Acid Number (TAN) standards

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.

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VWR® ARISTAR®, Terbium Standard Solution, 10000 mg/L Tb in dil. Nitric Acid (from Tb₄O₇), Standard for ICP

Supplier: VWR Chemicals

Tb₄O₇ in HNO₃ 2 to 5%.

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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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VWR® ARISTAR®, Multi-Element Quality Control Standard 100 mg/L, 9 Elements in Hydrochloric Acid 10% for ICP

Supplier: VWR Chemicals

Multi-Element Standard, Multi-element quality control standard 100 mg/L {Au; Ir; Pd; Pt; Rh; Ru; Os; Sn; Te} ARISTAR® for ICP, VWR® ARISTAR®, Matrix: 10% HCl, Application: ICP standards

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VWR®, Distillation standards for the petroleum industry, Certified Reference Materials

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.

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VWR® PESTINORM®, GC Multiresidue Pesticide Standard (Mix 9) - 8 components, CRM

Supplier: VWR Chemicals

A standard mixture, typically used for food testing, containing the following components: 100 ug/ml each of Disulfoton [CAS:298-04-4] ; Fonofos [CAS:944-22-9] ; Parathion-methyl [CAS:298-00-0] ; Mevinphos [CAS:7786-34-7] ; Parathion [CAS:56-38-2] ; Phorate [CAS:298-02-2] ; Piperonyl butoxide [CAS:51-03-6] ; Triazophos [CAS:24017-47-8] in Toluene