ISO quality managing system promoted by Geological Bureau of Coal Mine in Shandong Province has gained certain effects,but still have some problems,such as system running can not be confirm with present condition,standard is not strict in carrying out system.According to the cause of problems,in order to guarantee the exertion of quality managing system,three basic work should be paid more attention.They are: frequency and harsher measures of internal investigation should be strengthened,internal investigat...