This standard specifies the magnetic particle inspection and assessment methods for internal combustion engine connecting rods. This standard is applicable to the magnetic particle inspection and evaluation of forged steel connecting rods of reciprocating piston internal combustion engines with a cylinder diameter less than or equal to 200mm.
JB/T 6722-1993 history
2007JB/T 6721.2-2007 Internal combustion engines.connecting-rods.Part 2: Magnetic particle inspection
1993JB/T 6722-1993 Internal Combustion Engine Connecting Rod Magnetic Particle Inspection
JB/T 6722-1993 Internal Combustion Engine Connecting Rod Magnetic Particle Inspection was changed to JB/T 6721.2-2007 Internal combustion engines.connecting-rods.Part 2: Magnetic particle inspection.