2019DIN EN ISO 6416:2019-03 Hydrometry - Measurement of discharge by the ultrasonic transit time (time of flight) method (ISO 6416:2017); German version EN ISO 6416:2017
2019DIN EN ISO 6416:2019 Hydrometry - Measurement of discharge by the ultrasonic transit time (time of flight) method (ISO 6416:2017)
2005DIN EN ISO 6416:2005 Hydrometry - Measurement of discharge by the ultrasonic (acoustic) method (ISO 6416:2004); English version of DIN EN ISO 6416:2005