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Significance and Use
4.1 This practice establishes the basic parameters for controlling the application of the liquid penetrant method. This practice is written so it can be specified on the engineering drawing, specification, or contract. It is not a detailed how-to procedure to be used by the inspector and, therefore, must be supplemented by a detailed procedure that conforms to the requirements of this practice. Specification E165 contains information to help develop detailed requirements.
1.2 The penetrant examination processes described in this practice are applicable to in-process, final, and maintenance (in-service) examinations. These processes are applicable for the detection of discontinuities, such as lack of fusion, corrosion, cracks, laps, cold shuts, and porosity, that are open or connected to the surface of the component under examination.
1.3 Caution must be exercised in the usage of elevated temperature with components manufactured from thermoplastic materials. Also, some cleaners, penetrants, and developers can have a deleterious effect on nonmetallic materials such as plastics. Prior to examination, tests should be conducted to ensure that none of the cleaning or examination materials are harmful to the components to be examined.
1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
D2512 Test Method for Compatibility of Materials with Liquid Oxygen (Impact Sensitivity Threshold and Pass-Fail Techniques)
D6304 Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
E165 Practice for Liquid Penetrant Examination for General Industry
E543 Specification for Agencies Performing Nondestructive Testing
E1135 Test Method for Comparing the Brightness of Fluorescent Penetrants
E1316 Terminology for Nondestructive Examinations
E2297 Guide for Use of UV-A and Visible Light Sources and Meters used in the Liquid Penetrant and Magnetic Particle Methods
ASNT StandardsANSI/ASNT-CP-189 Standard for Qualification and Certification of Nondestructive Testing Personnel SNT-TC-1A Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing
Military StandardsMIL-STD-45662 Calibration System Requirements MIL-STD-792 Identification Marking Requirements for Special Purpose Components QPL-AMS-2644 Qualified Products List, Inspection Material, Penetrant
ICS Number Code 19.040 (Environmental testing)
UNSPSC Code 73121614(Non destructive testing service)
ASTM E1417 / E1417M-13, Standard Practice for Liquid Penetrant Testing, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top