![]() ![]() EUROPEAN COMMITTEE FOR STANDARDIZATION (CEN).ISO 23277, Non-destructive testing of welds – Penetrant testing of welds – Acceptance levels.ISO 12706, Non-destructive testing – Penetrant testing – Vocabulary.ISO 3059, Non-destructive testing – Penetrant testing.ISO 3452-1, 2, 3, 4, 5, & 6: Non-destructive testing – Penetrant testing.The following dye penetrant test standards provide guidelines for the test: Also, while using solvent remover and lint-free cloth, care must be exercised not to spray the solvent on the test surface directly, because this can remove the penetrant from the flaws. The excess penetrant has to be removed thoroughly otherwise, on the application of the developer, it may leave a background in the developed area that can mask indications or defects. Emulsifiers are used for the highest sensitivity level, and it chemically reacts with the oily penetrant, thus making it easier to remove using water spray. Depending on the dye penetrant type, The removal method is selected from water-washable, solvent-removable, lipophilic post-emulsifiable, or hydrophilic post-emulsifiable, etc. The excess penetrant needs to be removed from the sample surface. the pressure of the entrapped gas in the flaw by the penetrant. ![]() the atmospheric and capillary pressure of the defect opening.the surface tension, contact angle, dynamic viscosity, specific gravity, and microstructural properties of the penetrant. ![]()
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