1.1 This practice establishes the minimum requirements for conducting liquid penetrant examination of nonporous metal and nonmetal components. NOTE 1—This practice replaces MIL-STD-6866.
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 inchpound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.5 All areas of this practice may be open to agreement between the cognizant engineering organization and the supplier, or specific direction from the cognizant engineering organization. NOTE 2—Throughout this document, the term blacklight has been changed to UV-A to conform with the latest terminology in Terminology E1316. Blacklight can mean a broad range of ultraviolet radiation; fluorescent penetrant examination only uses the UV-A range.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM E1417/E1417M-21 Referenced Document
ANSI/NCSL Z540.3 Requirements for the Calibration of Measuring and Test Equipment*, 2024-04-22 Update
ASTM D6304 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
ASTM D95 Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
ASTM E1135 Standard Test Method for Comparing the Brightness of Fluorescent Penetrants
ASTM E1316 Standard Terminology for Nondestructive Examinations*, 2024-02-01 Update
ASTM E165/E165M Standard Practice for Liquid Penetrant Testing for General Industry
ASTM E203 Standard Test Method for Water Using Volumetric Karl Fischer Titration
ASTM E2297 Standard Guide for Use of UV-A and Visible Light Sources and Meters used in the Liquid Penetrant and Magnetic Particle Methods*, 2023-01-15 Update
ASTM E3022 Standard Practice for Measurement of Emission Characteristics and Requirements for LED UV-A Lamps Used in Fluorescent Penetrant and Magnetic Particle Testing*, 2024-04-22 Update
ASTM E543 Standard Practice for Agencies Performing Nondestructive Testing
ISO 10012 Measurement management systems - Requirements for measurement processes and measuring equipment
ISO 9712 Non-destructive testing — Qualification and certification of NDT personnel*, 2021-12-21 Update
ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories [Standard in French]
SAE AMS2175 Castings, Classification and Inspection of