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® PESTINORM®, 2,2,4-Trimethylpentane, Secondary Reference Standard for GC
Supplier: VWR Chemicals
A secondary GC solvent reference standard for various chromatographic and analytical applications.
Expand 1 Items
VWR® ARISTAR®, Selenium Standard Solution, 10000 mg/L Se in dil. Nitric Acid (from Se), Standard for ICP
Supplier: VWR Chemicals
Se in HNO₃ 2 to 5%.
Expand 1 Items
VWR® ARISTAR®, Tungsten Standard Solutions for ICP-MS
Supplier: VWR Chemicals
Tungsten Standard, 10 ppm, VWR® ARISTAR®, Tungsten, Matrix: H₂O/tr.NH₄OH, Application: ICP-MS standards
Expand 2 Items
VWR®, Endosulfan mixed isomers neat Certified Reference Material
Supplier: VWR Chemicals
Organic Standard, Endosulfan, mixed isomers neat CRM, 포장 유형: Glass ampoule
Expand 1 Items
VWR® ARISTAR®, Potassium Standard Solution, 1000 mg/L K in dilute Nitric Acid (from K), Standard for Ion Chromatography
Supplier: VWR Chemicals
K in H₂O tr.HNO₃.
Expand 1 Items
VWR®, Cation multi component standard 1 in water with a trace of nitric acid ARISTAR® for ion chromatography
Supplier: VWR Chemicals
Cation in dilute HNO₃.
Expand 1 Items
VWR® AVS TITRINORM, Zinc Standard Solution, 1000 mg/L Zn in dil. Nitric Acid, Standard for AAS
Supplier: VWR Chemicals
Zinc Standard, 1000 mg/L, VWR® AVS TITRINORM, Zinc, Matrix: 2% HNO₃, Application: AAS standards
Expand 2 Items
VWR®, Hydrazine standard solutions in water
Supplier: VWR Chemicals
Standard solution hydrazine, VWR®, 100 mg/l
Expand 1 Items
VWR®, Refractive index standards
Supplier: VWR Chemicals
Refractive index of each standard is verified using a calibrated and temperature controlled refractometer.
Expand 25 Items
VWR®, Benzoate 1,000 mg/L in Water standard for ion chromatography
Supplier: VWR Chemicals
Benzoate standard solution, 1000 mg/l, VWR®, Contents: C₆H₅COOH in H₂O, Application: Ion chromatography standards
Expand 1 Items
VWR® AVS TITRINORM, Hafnium Standard Solution, 1000 mg/L Hf in Dilute Nitric Acid with hydrofluoric Acid (max. 1%) AVS TITRINORM Standard for AAS
Supplier: VWR Chemicals
Hafnium Standard, 1000 mg/L, VWR® AVS TITRINORM, Hafnium, Matrix: Nitric acid dil., Application: AAS standards
Expand 2 Items
VWR® AVS TITRINORM, Vanadium Standard Solution, 1000 mg/L V in 2% sulphuric Acid, Standard for AAS
Supplier: VWR Chemicals
Vanadium Standard, 1000 mg/L, VWR® AVS TITRINORM, Vanadium, Matrix: 2% H₂SO₄, Application: AAS standards
Expand 2 Items
VWR® AVS TITRINORM, Sodium Standard Solution, 1000 mg/L Na in dil. Nitric Acid, Standard for AAS
Supplier: VWR Chemicals
Sodium Standard, 1000 mg/L, VWR® AVS TITRINORM, Sodium, Matrix: 2% HNO₃, Application: AAS standards
Expand 2 Items
20 °C 밀도 표준
Supplier: VWR Chemicals
이 제품은 pycnometric, 진동계 또는 비중계 기반 기술에 의한 밀도 측정을 위한 교정 표준으로 사용될 수 있습니다.
Expand 26 Items
VWR®, Colour standards, Saybolt
Supplier: VWR Chemicals
Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis.
Expand 14 Items
VWR®, Phosphorus standard solution, 1,000 mg/L P in water AVS TITRINORM standard for AAS
Supplier: VWR Chemicals
Phosphorus Standard, 1000 mg/L, VWR®, Phosphorus, Matrix: H₂O, Application: AAS standards
Expand 2 Items
Recommendations will be personalized based on your shopping preferences only if you have given your consent by enabling "Enhance my Shopping Experience" on the "Personal Info page".
Otherwise, you will receive generic recommendations.
Catalog #: 83639.320
Supplier: VWR Chemicals
Catalog #: 20864.320
Supplier: VWR Chemicals
Catalog #: 83640.320
Supplier: VWR Chemicals
Catalog #: 31770.294
Supplier: VWR Chemicals
Catalog #: 83645.320
Supplier: VWR Chemicals
Catalog #: 20060.320
Supplier: VWR Chemicals