Product category:
Liquid Analysis: Spectroscopy, Colour
News Release from: Wilks Enterprise | Subject: InfraCal TOG/TPH Analyser, Model CVH
Edited by the Processingtalk Editorial
Team on 18 February 2008
Checking the cleaning of metal parts
using IR
The Wilks Enterprise InfraCal TOG/TPH Analyser can be used to test the solvent where metal parts to be tested are soaked, to confirm no grease has been found
For applications involving such items as gas regulators, space shuttle components, weaponry parts or oxygen sensors, it is critical that metal parts must be free of hydrocarbon (oil/grease) contamination before use To ensure cleaning efficiency, the metal part is soaked in a known volume of a solvent such as S-316, Hexane or Vertrel MCA and the solvent is then tested for its hydrocarbon content using a suitable portable Wilks Enterprise InfraCal TOG/TPH Analyser
This article was originally published on Processingtalk on 13 Jun 2008 at 8.00am (UK)
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When using an infrared transparent solvent such as S-316 that does not contain hydrocarbons, the solvent can be placed directly into a 10mm quartz cuvette cell and inserted into the cuvette holder of the InfraCal TOG/TPH Analyser, Model CVH.
The resulting absorbance at 3.4 microns correlates directly to the amount of hydrocarbon present in the sample.
This makes for a quick and easy analysis; however, the Model CVH is only usable with infrared transparent solvents.
If solvents such as Hexane or Vertrel MCA which contain hydrocarbons are used for cleaning, their hydrocarbon content will interfere with the infrared measurement using a 10mm quartz cuvette cell and analysis by traditional transmission infrared techniques.
The Wilks Enterprise InfraCal IR Platform Analyser, Model HATR-T2, permits the use and measurement of solvents that contain hydrocarbons.
The sample is placed on the analyser horizontal ATR crystal and the heat from the infrared source quickly evaporates off the solvent in 3-5 minutes.
The residual hydrocarbon film left on the crystal is measured by internal reflection techniques.
This method is as quick and simple as the transmission method. Request a free brochure from Wilks Enterprise ...
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