AS 3778.4.1:2022 PDF

AS 3778.4.1:2022 PDF

AS 3778.4.1:2022 identically adopts ISO 1438:2017, which defines the requirements for the use of rectangular and triangular (V-notch) thin-plate weirs for the measurement of flow of clear water in open channels under free flow conditions. It includes the requirements for the use of full-width rectangular thin-plate weirs in submerged (drowned) flow conditions.

This Australian Standard ® was prepared by CE-024, Measurement Of Water Flow In Open Channels and Closed Conduits. It was approved on behalf of the Council of Standards Australia on 30 May 2022.

This Standard was published on 10 June 2022.

The following are represented on Committee CE-024:

Australian Bureau of Meteorology

Australian Hydrographers Association

Australian Industry Group

Department of Planning, Industry and Environment, NSW.

Engineers Australia

Institute of Instrumentation, Control & Automation Australia

Irrigation Australia

Joint Accreditation System of Australia & New Zealand

National Measurement Institute

Water NSW

This Standard was issued in draft form for comment as DR AS 3778.4.1:2022.