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BS EN 15900 is written to provide guidance to both customers and providers of energy efficiency services
— sampling strategy
single and multipin jam nut receptacles
petrochemical plants
or other devices specially designed to lift persons between two levels
Ultrasonics. Hydrophones - Calibration for ultrasonic fields up to 40 MHz Ingestion-build-44616 BS EN 15900 is written1 Scope This part of IEC 62127 specifies: absolute hydrophone calibration methods; relative (comparative) hydrophone calibration methods. Recommendations and references to accepted literature are made for the various relative and absolute calibration methods in the frequency range covered by this standard. This standard is applicable to hydrophones used for measurements made in water and in the ultrasonic frequency range up to 40 MHz; NOTE 1 Although