Measuring instruments are used in a variety of fields such as research & development, production, and testing. Even with highly reliable instruments accuracy can decline with long-term use, and so periodic calibration is important. Yokogawa has been certified as meeting the ISO9001 and ISO14000 global quality standards as well as the ISO/IEC 17025 (Guide 25) international calibration standard. Yokogawa does all calibration as well as instrument repair, remodeling and overhaul according to its exacting standards.