18583 Results for: "Certified Reference Materials, KLEN"

Supplier: AccuStandard

Organic Standard, Suspended solids certified reference material

Supplier: CPACHEM

Iron(II)ethylenediammonium sulfate tetrahydrate - certified reference material for standardisation of volumetric solutions.

Supplier: VKI WATER QUALITY INSTITUTE

Certified Reference Materials (CRMs), produced by VKI, are designed to provide appropriate homogenous stable reference materials for quality control of environmental analyses. Certification is carried out in accordance with ISO Guide 30, 31, 33, 34, 35, ISO 5725 and ISO/REMCO N 37. All CRMs are traceable to a National Standard, or verified by a group of internationally recognised laboratories, and come with a Certificate of Analysis which states the certified value and the uncertainty at a stated level of confidence.

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.

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.

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.

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.

Supplier: VWR Chemicals

Flash point Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for TAG Closed Cup (ASTM D56).

Supplier: VWR Chemicals

Spill Control, Mobile Spill-X®, Eye and hand protection accessories kit

Supplier: Merck

Colour standard, ASTM Colour 5, Supelco®

Supplier: LGC Standards PROMOCHEM

This product is intended for the calibration and/or verification of equipment used for the measurement of colour of liquid samples. This product may also be used for visual based methodology.

Supplier: CPACHEM

Holmium oxide solution for wavelength control acc. 2.2.25 of Ph Eur

Supplier: VWR Chemicals

Fuel testing Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Smoke Point ASTM D1322 / IP 57.

Supplier: DIDALAB

Educational Materials, Accessories, Application: Physics, Lens holder, Ø 80 mm

Supplier: asecos

Spill Control, Ramp, 450×1120 mm

Supplier: G-Biosciences

This lab activity is designed to demonstrate the different classes of protein molecules and their classification based on solubility. Students learn fractionation of soluble, insoluble membrane proteins, and cytoskeleton proteins from a tissue sample. The insoluble protein fraction is further fractionated into hydrophilic and hydrophobic membrane proteins. Cell membrane structure and the role of hydrophobic membrane proteins are considered. This lab activity also provides an opportunity to understand characteristics of various classes of detergents and the role of detergents in solubilisation of hydrophobic membrane proteins.

Supplier: EKSIGENT

Standards chemical kit with low and high concentrations of polypropylene glycol polymers (PPGs).

Supplier: CPACHEM

2×10 ml Potassium dichromate solution for absorbance control 235 - 350 nm and 6×10 ml

Supplier: Thermo Fisher Scientific

Reserpine standard for LC-MS is a precise concentration of reserpine specifically designed for performance evaluation of mass spectrometers.

Supplier: Merck

AOCS-Tintometer Colour Standard for routine calibration of colour measuring instruments and verification of test data. Process industries throughout the world use colorimeters for colour control of products such as edible and industrial oils, fuels, chemicals, pharmaceuticals, paints and coatings.

Supplier: VWR Chemicals

Fuel testing Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Cetane Number ISO 5165 / EN 61715.

Supplier: AccuStandard

Total residual chlorine standard certified reference material, : N/A

Supplier: LGC Standards PROMOCHEM

Organic Standard, Venlafaxine impurity standard

Supplier: G-Biosciences

The physical properties of proteins kit is a lab activity that enables students to investigate the physical properties of several different proteins. Students will learn about protein solubility and how it is affected by various parameters; including temperature, pH, salt and dielectric constant. They will understand about protein precipitation due to pH, high salt and in the presence of organic solvents and about protein denaturation as a result of high temperature. In addition, the kit will demonstrate how non-protein agents, such as detergents drastically alter the physical properties of protein molecules and as a result, understand the importance of detergents in protein solubilisation. This lab activity involves analysis of three different types of pure proteins and then students alter some of those properties with a detergent and re-examine physical properties of those proteins. Students are challenged to consider how physical properties of protein molecules can be exploited for purification and characterisation of proteins and apply their findings on a test sample of complex tissue extract.

Supplier: EDVOTEK

Kit for teaching students how to use a micropipette with ease and accuracy using multi-coloured dyes.

Supplier: VWR Chemicals

Avantor offers a comprehensive range of conductivity standards as Certified Reference Materials with the primary use calibrating of conductivity meters.

Supplier: NEUBERT VOLUME GLASSWAERE

Educational Materials, Accessories, Application: Physics, Platinum electrode, with NR gray plug

Supplier: VWR Chemicals

Flash point Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for Abel Closed Cup (IP 170, ISO 13736).

Supplier: asecos

Spill Control, Rack with cutting edge for rolls which need to be ready at hand, up to 40 cm width

Supplier: VWR Chemicals

Cold Filter Plugging Point (CFPP) Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for Cold Filter Plugging Point (CFPP) according to IP 309, EN 116 and ASTM D6371 also other equivalent test methodology.