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Simon Löhe
Metallographer, group leader of Laboratory-Services Munich
Expert in failure analysis and metallography
+49 8106 9941 17


Schedule of service

Sample preparation

Samples for the particle analysis are often of different characters. Depending on the type of sample, the particles may be obtained by various methods. Particles in liquids are centrifuged and decanted or collected with nuclear pore filters (standard: 0.8 µm pore diameter, lightly gilded) by a vacuum filtration unit. Mineral oil samples for example are previously brought into solution using benzine. Powder samples are optionally dried in the oven and can usually be used directly for the subsequent analysis. Residues on solids (for example deposits) are gained separately from the test specimen, scraped or rinsed powdery (for example filter systems, smaller components, hoses, etc.). Also an examination directly from the component is possible. For the most part all sample types can be prepared. Depending on the initial state of the sample and the method of analysis, a specific preparation method can be developed.

Standard: AV 273

[Translate to English:] Goldkernporenfilter mit Partikelbelegung auf Kohlenstoffpad
[Translate to English:] Probenfiltration

Society for Materials Testing
Ensuring quality | Accompanying development | Analyzing damage | Passing on knowledge

GWP Gesellschaft für Werkstoffprüfung mbH
Georg-Wimmer-Ring 25
85604 Zorneding/München

Tel. +49 8106 994110
Fax +49 8106 994111

Handelsregister München
HRB 53245
USt.-IdNr. DE131179893

General Manager
Dr. Julius Nickl