Analytics

The Analytics division of RMI performs analytical tests on raw materials and coatings, e.g. paints, plasters, lacquers, varnishes, structural protection products and heat insulation. The tests comprise determining and assessing the materials, their composition and their environmental properties.

To our customers, we offer a range of tests using various analytical methods concerning the world of coatings. An overview of our test methods can be found in the directory of services.

RMI analytics offers the following methods of analysis:

• Gas chromatography coupled with mass spectrometry (GC/MS)

• Gas chromatography coupled with flame ionisation detection (GC/FID)

• Thermal desorption gas chromatography coupled with mass spectrometry (TDS/GC/MS)

• Pyrolysis gas chromatography

• High performance liquid chromatography coupled with diode array detection (HPLC/DAD)

• High performance liquid chromatography coupled with a triple quadruple mass  spectrometer (LC/MS/MS)

• Ion chromatography

• Fourier transform infrared (FTIR) spectroscopy

• Microscopy

• UV/VIS photometry

• Karl Fischer coulometry

RMI analytics is accredited according to DIN EN ISO 17025 for the following tests:

• Determination of solid matter content

• Determination of cristal water content, of ignition loss and of ash content

• FTIR spectroscopy of raw materials and coating materials

• Gas chromatographic analysis with ALS injection system and MS detector (SVOC)

• Gas chromatographic analysis with headspace sampler and FID detector (VOC)

• Emissions measurements on coating materials – test chamber procedure

Ion chromatography to determine the content of anions and cations

Ion chromatography can be used to determine salts in materials, e.g. as assessment criterium for the substrate when selecting materials for further coatings such as plaster or paint. Salts which damage buildings such as nitrate, sulphate and chloride dissolve easily in water. Via weathering, they can be transported into building materials, where they can cause damage or further moisture penetration because of their hygroscopic behaviour.

Additionally, the chromate content in cement-based systems such as e.g. tile adhesives or plasters can be measured by ion chromatography. These building materials must be free from chromate because chromium (VI) compounds can cause skin diseases.

Furthermore, the quantitative determination of anions and certain cations in paints and varnishes can be used for pigment analysis.