Method for detecting residues on a component

G - Physics – 01 – N

Patent

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G01N 31/02 (2006.01) G01N 21/82 (2006.01)

Patent

CA 2622540

The present invention relates to a method for detecting residues on a component and particularly on the surface of the component. In order to also allow the testing of surfaces which are difficult to access, without the apparatus outlay growing, the method according to the present invention comprises the following steps: producing a base solution (1) and a reference solution (2) from water, producing (3) a washing solution by adding fresh solvent to the base solution, filling (4) the component to be tested with the washing solution, wetting (5) the entire inner surface of the component with the washing solution, draining (6) the washing solution out of the component, producing (7) a test solution by adding the washing solution to the base solution, comparing (8) the test solution to the reference solution, and testing (9) whether a turbidity occurs in the mixing zone between the washing solution and the base solution, as proof (10a, 10b) for lubricant on the surface of the component.

L'invention concerne une méthode pour détecter la présence de résidus sur un composant, et en particulier sur la surface de ce composant. La méthode de l'invention est également destinée à permettre de tester des surfaces qui sont difficiles d'accès, sans qu'il soit nécessaire d'augmenter le volume d'appareillage. La méthode de l'invention comprend les étapes consistant à: produire une solution de base (1) et une solution de référence (2) à partir d'eau, produire (3) une solution de lavage par l'ajout d'un solvant frais à la solution de base, remplir (4) le composant à tester à l'aide de la solution de lavage, humidifier (5) toute la surface intérieure du composant à l'aide de la solution de lavage, drainer (6) la solution de lavage hors du composant, produire (7) une solution test par l'ajout de la solution de lavage à la solution de base, comparer (8) la solution test à la solution de référence, et tester (9) si une turbidité se produit dans la zone de mélange située entre la solution de lavage et la solution de base, ceci mettant en évidence (10a, 10b) la présence de lubrifiant sur la surface du composant.

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