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Certified Reference Materials, Rocklabs"에 대한 1265개의 결과

1265 검색 결과: “Certified Reference Materials, Rocklabs”

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Standard solution set (potassium dichromate solutions) for calibration of UV/Visible spectrophotometers

Standard solution set (potassium dichromate solutions) for calibration of UV/Visible spectrophotometers

Supplier: VWR Chemicals

A set for linearity check of the absorbance of spectrophotometers.

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VWR®, UV/Visible spectroscopy wavelength standards

VWR®, UV/Visible spectroscopy wavelength standards

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.

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VWR®, Yeast nitrogen base (YNB)

VWR®, Yeast nitrogen base (YNB)

Supplier: VWR Chemicals

Yeast Nitrogen Base (YNB) is a base medium for preparation of minimal and synthetic defined yeast media.

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VWR®, Multi-Parameter Refractive Index and Density Certified Reference Material At 15, 20 and 25 °C

VWR®, Multi-Parameter Refractive Index and Density Certified Reference Material At 15, 20 and 25 °C

Supplier: VWR Chemicals

The Refractive Index and Density Certified Reference Materials provide a flexible, cost-effective and efficient solution to any laboratory calibrating and/or verifying refractive index and density measurements – all from a single material.

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VWR®, Boron standard solution, 5000 mg/L B in water

VWR®, Boron standard solution, 5000 mg/L B in water

Supplier: VWR Chemicals

This certified reference material is produced using a high-purity starting material, acid from sub-boiling and 18 MOhm deionised water.

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VWR®, Endosulfan mixed isomers neat Certified Reference Material

VWR®, Endosulfan mixed isomers neat Certified Reference Material

Supplier: VWR Chemicals

Organic Standard, Endosulfan, mixed isomers neat CRM, 포장 유형: Glass ampoule

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VWR®, UV/Visible spectroscopy linearity standards at 235, 257, 313 and 350 nm

VWR®, UV/Visible spectroscopy linearity standards at 235, 257, 313 and 350 nm

Supplier: VWR Chemicals

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

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VWR®, Propyzamide neat Certified Reference Material

VWR®, Propyzamide neat Certified Reference Material

Supplier: VWR Chemicals

Organic Standard, Propyzamide neat Certified Reference Material, 포장 유형: Glass ampoule

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VWR®, Certified Reference Material, Cleveland Open Cup flash point

VWR®, Certified Reference Material, Cleveland Open Cup flash point

Supplier: VWR Chemicals

Flash point Certified Reference Materials are for the verification of laboratory flash point instruments that are used in testing petroleum and derivative products. 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.'

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VWR®, Colour standard solutions, Reag. Ph. Eur.

VWR®, Colour standard solutions, Reag. Ph. Eur.

Supplier: VWR Chemicals

Ready to use colour solutions according to Reag. Ph. Eur.

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Macron Fine Chemicals™ StandARd®, Platinum Cobalt Colour Standard (APHA 500)
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VWR®, UV spectroscopy bandwidth standards

VWR®, UV spectroscopy bandwidth standards

Supplier: VWR Chemicals

Bandwidth standards.

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VWR®, α-Endosulfan Certified Reference Material

VWR®, α-Endosulfan Certified Reference Material

Supplier: VWR Chemicals

Organic Standard, α-Endosulfan Certified Reference Material, 포장 유형: Glass ampoule

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VWR®, Refractive index Certified Reference Material at 20, 25 and 30 °C

VWR®, Refractive index Certified Reference Material at 20, 25 and 30 °C

Supplier: VWR Chemicals

Refractive index Certified Reference Materials (CRMs) are ideal for verification and calibration of temperature controlled refractometers, with each CRM providing certified values for refractive index measurements at 20, 25 and 30 °C.

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VWR®, Certified Reference Material, Pensky Martens flash point

VWR®, Certified Reference Material, Pensky Martens flash point

Supplier: VWR Chemicals

Flash point Certified Reference Materials are for the verification of laboratory flash point instruments that are used in testing petroleum and derivative products. PMCC flash point standards are tested and certified in accordance with ASTM D93 'Standard Test Method for Flash Point by Pensky Martens Closed Cup Tester - Procedure A'

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VWR®, Colour standards, Saybolt

VWR®, Colour standards, Saybolt

Supplier: VWR Chemicals

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

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VWR®, Colour reference solutions acc. to Ph. Eur., ready to use

VWR®, Colour reference solutions acc. to Ph. Eur., ready to use

Supplier: VWR Chemicals

These solutions are developed and produced according to chapter 2.2.2. 'Degree of colouration of liquids' of the European Pharmacopoeia. (brown, brown-yellow, green-yellow, red and yellow). These kits are ready to use, and are dedicated to help you save time and money because preparation of these solutions is very complex.

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VWR®, Cloud Point standard, Certified Reference Material

VWR®, Cloud Point standard, Certified Reference Material

Supplier: VWR Chemicals

Cloud Point Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for Cloud Point according to IP 219, ISO 3015, EN 23015, ASTM D2500 and other equivalent test methodology.

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VWR Chemicals, Base Materials for Dehydrated Media

VWR Chemicals, Base Materials for Dehydrated Media

Supplier: VWR Chemicals

The ingredients used to prepare culture media are very important, because ultimately the results depend on the quality of these compounds. Raw materials should be stored at 10 to 30 °C unless otherwise stated, in their closed containers in a dry environment.

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VWR®, Base materials

VWR®, Base materials

Supplier: VWR Chemicals

VWR® is a manufacturer and supplier of high quality biochemicals and reagents for molecular biology, life sciences, proteomics, clinical and histology areas of research.

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VWR®, Colour standard solutions ASTM

VWR®, Colour standard solutions ASTM

Supplier: VWR Chemicals

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

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VWR®, Holmium perchlorate standard solution for wavelength calibration of spectophotometers, Reag. Ph. Eur

VWR®, Holmium perchlorate standard solution for wavelength calibration of spectophotometers, Reag. Ph. Eur

Supplier: VWR Chemicals

Standard for spectrophotometer calibration, Holmium perchlorate standard solution, Reag. Ph. Eur, VWR®

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VWR®, UV/Visible standards

VWR®, UV/Visible standards

Supplier: VWR Chemicals

For spectrophotometer calibration according to European Pharmacopoeia (Ph. Eur.)

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VWR®, Certified Reference Materials  for the standardisation of volumetric solutions

VWR®, Certified Reference Materials for the standardisation of volumetric solutions

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).

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VWR®, Sulphur, Certified Reference Materials, in heavy mineral oil

VWR®, Sulphur, Certified Reference Materials, in heavy mineral oil

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®, Perfluorooctane sulphonic acid, Certified Reference Material (CRM)

VWR®, Perfluorooctane sulphonic acid, Certified Reference Material (CRM)

Supplier: VWR Chemicals

Per- and polyfluoroalkyl substances (PFAS) are amongst the primary emerging contaminants of concern. The detection and quantification of known PFAS and the discovery of unknown PFAS substances has never been more important.

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VWR®, Total Nitrogen Standards (CRMs)

VWR®, Total Nitrogen Standards (CRMs)

Supplier: VWR Chemicals

Certified reference materials for use as standards for Total Nitrogen, typically used as standards for Kjeldahl nitrogen determination.

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VWR®, Polysulphide, Certified Reference Materials, in light, mineral oil

VWR®, Polysulphide, Certified Reference Materials, in light, mineral oil

Supplier: VWR Chemicals

Polysulphide 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® ARISTAR®, Ion chromatography anion multi-element standard solution, Certified Reference Material

VWR® ARISTAR®, Ion chromatography anion multi-element standard solution, Certified Reference Material

Supplier: VWR Chemicals

This certified reference material is produced using a high purity starting material, acid from sub-boiling and 18 MOhm deionized water and filtered through a 0.2 micron filter.

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VWR®, Gardner colour standards

VWR®, Gardner colour standards

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.

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