BSAZ owns quite a number of advanced equipments as well as an equipment management system, represented by standard operation procedure. Rules and regulations are made about all equipments, instruments and measuring tools which will influence production quality characteristics. Degree of accuracy must be verified before using the equipments. Equipments should be placed appropriately and under protection before using again, and also be verified and calibrated regularly. Daily maintenance system is established and preventive equipment repairing plans are made to ensure accuracy and production capacity of equipments as well as continuous process capacity.