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1.1 This practice establishes the minimum requirements for conducting liquid penetrant examination of nonporous metal, and nonmetal components.Note 1-When coordinated through the Department of Defense (DoD) this practice will be a direct replacement of MIL-STD-6866.
1.2 The penetrant examination processes described in this practice are applicable to in-process, final, and maintenance (in-service) inspections. 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 inspection materials are harmful to the components to be examined.
1.4 The values stated in inch-pound units are regarded as standard. The SI units given in parentheses are for information only.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Notes 3 and 4.
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
Military StandardsMIL-STD-45662 Calibration System Requirements
ANSI/ISO/AIA StandardsNAS410 Certification and Qualification of Nondestructive Test Personnel
SAE StandardAMS2175A Castings, Classification and Inspection of
ICS Number Code 19.040 (Environmental testing)
UNSPSC Code 73121614(Non destructive testing service)