TERMIUM Plus^®

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Record number: 1, Textual support number: 1 CONT

Analytical ferrography is among the most powerful diagnostic tools in oil analysis. The test is qualitative, because it relies on the skill and knowledge of the ferrographic analyst.... A sample of the machine's lubricating oil is taken and diluted, then run across a glass slide. This glass slide is then placed on a magnetic cylinder that attracts the contaminants. Non-magnetic contaminants remain distributed across the slide from the wash. These contaminants are then washed, to remove excess oil, heated to 315 °C(600 °F) for 2 minutes and the slide is analysed under a microscope. After analysis, the particles will be ranked according to size. Particles larger than 30 μm in size are considered "abnormal" and indicate severe wear.  2, fiche 1, Anglais, - analytical%20ferrography

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Direct-reading ferrography magnetically separates wear particles and optically measures the quantity of large and small particles present in the oil sample. Using results from direct-reading ferrography that indicate the rate, intensity and severity of wear..., machine wear baselines can be established and trends in wear conditions can be monitored. If there is a significant increase in the wear trend levels, a detailed analytical ferrography should be performed.  1, fiche 2, Anglais, - direct%2Dreading%20ferrography

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol