ISO Standards ISO 748-2021 pdf free download – Hydrometry – Measurement of liquid flow in open channels – Velocity area methods using point velocity measurements (ISO 748:2021) ISO 748-2021 pdf free download - Hydrometry - Measurement of liquid flow in open channels - Velocity area methods using point velocity measurements (ISO 748:2021). A measuring site shall be chosen conforming to the specified requirements. The... 02-10 Download Now