High-end solution for most challenging tasks. The perfect partner not only for MS coupling.

KNAUER freezing point osmometer K-7400S allows the easy and fast determination of the osmolality of various aqueous solutions. Also, the freezing point depression of the samples can be read. The proven technology of freezing point determination in combination with the robust and intelligent design of the device allows reproducible measurements. The instrument is equipped with a peltier cooler and an integrated microprocessor controlling the automated measurement. The freezing point osmometer is a standalone device that optionally can be equipped with a printer. Furthermore, the device can be controlled via the EuroOsmo 7400 software. The software automatically plots the temperature curve for each measurement and calibration and allows saving of the measured values. In addition, the data can optionally be exported into various file formats for archival storage.

The measurement specifications of the KNAUER Semi-Micro Osmometer K-7400S comply with the requirements of the European Pharmacopoeia for osmolality (Ph. Eur. 2.2.35, 10/2021) in the pharmaceutically relevant range of 0-400 mOsmol/kg.

The Diaphragm Vacuum Pump is a chemically resistant, oil-free diaphragm vacuum pump used for a wide range of laboratory applications. 

All-glass assemblies are ideal for biodiesel testing, aggressive solvents, and applications where you need to minimize the materials that contact sample or filtrate. Filter holder mounts on filtration flask using a ground glass joint; order standard 47-mm filter paper separately below.

The Koehler Benchtop EDXRF Elemental Analyzer can be used to determine the amount of sulfur in petroleum and petroleum products that are single-phase. This product may be used to determine the amount of lead in gasoline as well.

The Copper Strip Tarnish Test assesses the relative degree of corrosivity of petroleum products, including aviation fuels, automotive gasoline, natural gasoline, solvents, kerosene, diesel fuel, distillate fuel oil, lubricating oil and other products. A polished copper strip is immersed in 30mL of sample at elevated temperature. After the test period, the strip is examined for evidence of corrosion and a classification number from 1-4 is assigned based on a comparison with the ASTM Copper Strip Corrosion Standards. For aviation fuels and natural gasoline the sample tube is placed inside a stainless steel pressure vessel during testing.

Fully insulated, thermostatically controlled water bath with constant water level device. Use together with K25370 Bath Conversion Kit to immerse six 350mL test tubes for silver strip corrosion tests. Stainless steel inner wall and powder coated steel outer wall construction.

Koehler Automated Flash Point Analyzers represent a perfect union of next-generation technology with traditional robust quality. The system software runs on an integrated processor PC running the latest Windows operating system.