Are gages and test / inspection, including customer owned gages and equipment, checked by a documented system with a defined P/T ratio and are records maintained?

• 针对计量器具和测试/检验设备，包括顾客拥有的计量仪器，是否有一个规定明确的精确度与公差比例的文件化审核体系，并存有相应的记录？