| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: method involves the following steps: preparation of a initial solution (1) and a control solution (2) from water, preparation (3) of a washing solution by adding a fresh solvent to the initial solution, filling (4) the article to be tested with the washing solution, wetting (5) the entire inner surface of the article with the washing solution, draining (6) the washing solution from the article, preparation (7) of a test solution by adding the washing solution to the initial solution, comparing (8) the test solution to the control solution and analysis (9) of turbidity arising in the zone for mixing the washing solution and the initial solution, which serves as proof (10a, 10b) of presence of lubricants on the surface of the article. ^ EFFECT: possibility of analysing surfaces which are difficult to access without increasing expenses on equipment. ^ 8 cl, 1 dwg |
