TM 1-1520-265-23Change 2 1-27WARNINGTemperatures in excess of 49_C (120_F) may cause bursting of pressurized cans andinjury to personnel.e. Store all pressurized spray cans in a cool, dry area protected from direct sunlight. Avoidexposure of pressurized spray cans to open flame.WARNINGVolatile fumes may occur, creating both a fire and a health hazard.f. Exercise extreme caution when handling penetrants that have been heated to a point wheresome lighter constituents are driven off.1.4.7.2 Controlling Excess Fluorescent Penetrant. After fluorescent penetrant inspection, the partshall be thoroughly cleaned to ensure all excess penetrant is removed from the part. This shallinclude removing the penetrant from cracks as much as possible before disposition of the part. Thiscan be easily accomplished by performing cleaning operations under a black light.1.4.8 MagneticParticle(MT)Method.NOTEMagnetic particle inspection shall be performed in accordance with the generalapplication and techniques in TM 1-1500-335-23 (Nondestructive Inspection methodsmanual) and the specific requirements of this technical manual.NOTEDuring magnetic particle inspections performed with portable equipment, the operatorshall keep the can of magnetic particle media constantly agitated by continuouslyshaking the can prior to application.Magnetic particle is a method of detecting cracks or other flaws on the surface or near the surfaceof materials that are ferromagnetic. This method will produce good indications of discontinuities,provided the part is free from grease, oil, loose scale, or other surface contaminants. The inspectionis accomplished on either assembled or disassembled parts. As specified in the procedure, theinspection is accomplished by inducing a magnetic field in the part and applying a liquid suspensionof iron oxide particles to the surface to be inspected. By controlling the direction of the magnetic flux,the lines of magnetic force shall be positioned perpendicular to the crack or flaw. All magnetic particleinspections in this manual shall be of the wet continuous method using fluorescent magneticparticles.
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
