BS EN ISO 12706:2001 pdf download – Non-destructive testing – Terminology – Terms used in penetrant testing.
2.7 dip rinse Means of removing excess penetrant in which the test parts are dipped into a tank of water which may be agitated. 2.8 dry developer Developer in the form of a fine dry powder used mainly with fluorescent penetrants. 2.9 dual purpose penetrant Penetrant that gives indications which are capable of being viewed either under visible light or UV-A-radiation. 2.10 electrostatic spraying Application of eletrically charged particles to an earthed test surface. 2.11 emulsification of penetrant Action of emulsifiers on post emulsifiable pene- trants to render them water-washable. 2.12 emulsification time Period of time that an emulsifier is used to render the post emulsifiable penetrant water-washable.
2.20 peelable developer Liquid developer which, on evaporation, leaves a thin removable film which retains any indication and can be used to obtain archivable replicas. 2.21 penetration time Interval comprising penetrant application time plus drain time, during which the penetrant is in direct contact with the test surface. 2.22 penetrant Liquid which when applied to a component is designed to find its way into surface discontinui- ties and to remain there in detectable amounts during the subsequent removal of excess penetrant from the surface. 2.23 penetrant materials (testing products) Cleaners, penetrants, removers and developers used in penetrant testing. 2.24 post cleaning The removal of penetrant material residues from the test part after the penetrant testing process has been completed.
2.31 sensitivity level (of a penetrant inspection process) Grading of sensitivity of a given penetrant testing process. 2.32 solvent based developer ; Nonaqueous wet developer Developer consisting of fine particles in a solution with a volatile solvent. 2.33 solvent-removable penetrant Penetrant that requires the application of a suitable solvent to remove the excess surface. 2.34 solvent remover Organlc liquld used to remove excess penetrant from the test surface. 2.35 water soluble developer (aqueous) Product dissolved in water which when dry forms an absorbant coating. 2.36 water suspendable developer (aqueous) Product dispersed in water, which dries to an absorptive coating.
BS EN ISO 12706:2001 pdf download – Non-destructive testing – Terminology – Terms used in penetrant testing
