ISO 3455:2021(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical

Scope-Lays down the gauging practice for inspection of plain workpieces with dimensions fess than 500 mm. This standard also gives the manufacturing tolerances and the permissible wear limit of the gauges.

This document specifies a calibration method for mechanical type, electromagnetic type and acoustic type hydrometric current-meters used for point velocity measurement of flowing water. The method requires towing the instrument through still water in a straight open tank.

This third edition cancels and replaces the second edition (ISO 3455:2007), which has been technically revised. The main changes compared to the previous editions are as follows: — a subclause for calibration of acoustic current-meters for …

INTERNATIONAL STANDARD ISO 3455:2007(E) © ISO 2007 – All rights reserved 1 Hydrometry — Calibration of current-meters in straight open tanks 1 Scope This International Standard specifies the procedure of calibration of current-meters of rotating-element type as well as stationary-sensor type (electromagnetic type) in straight open tanks.

This document specifies a calibration method for mechanical type, electromagnetic type and acoustic type hydrometric current-meters used for point velocity measurement of flowing water. The method requires towing the instrument through still water in a straight open tank.

ISO 3455:2021 Hydrometry — Calibration of current-meters in straight open tanks. Abstract Preview. This document specifies a calibration method for mechanical type, electromagnetic type and acoustic type hydrometric current-meters used for point velocity measurement of flowing water. The method requires towing the instrument through still ...

2025年3月10日 · 本标准规定了用于流水点速度测量的机械式、电磁式和声学式水文流量计的校准方法。 该方法需要将仪器拖过直开式水箱中的静水中。 它包括测量设备、校准程序、呈现结果的方法以及与该方法相关的不确定性。 BS ISO 3455:2007 液体比重测定法. 敞口直立水箱中流速计校准 ISO 3455:2007 液体比重测定法. 敞口直立水箱中流速计校准 BS ISO 3455:2021 液体比重测定法 敞口直立水箱中流速计校准 CSN ISO 3455:1994 明渠 液流 量 测 量．. 敞口直立水箱中 转 …

This document specifies a calibration method for mechanical type, electromagnetic type and acoustic type hydrometric current-meters used for point velocity measurement of flowing water. The method requires towing the instrument through still water in a straight open tank.

INTERNATIONAL STANDARD ISO 3455:2021(E) Hydrometry — Calibration of current-meters in straight open tanks 1 Scope This document specifies a calibration method for mechanical type, electromagnetic type and acoustic type hydrometric current-meters used for point velocity measurement of flowing water. The method