MIL-STD-1907 (NOTICE 1), MILITARY STANDARD: INSPECTION, LIQUID PENETRANT AND MAGNETIC PARTICLE, SOUNDNESS REQUIREMENTS FOR MATERIALS, PARTS AND WELDMENTS (22 MAR 1990)
MIL-STD-1907 (NOTICE 1), MILITARY STANDARD: INSPECTION, LIQUID PENETRANT AND MAGNETIC PARTICLE, SOUNDNESS REQUIREMENTS FOR MATERIALS, PARTS AND WELDMENTS (22 MAR 1990).