Hydrometric determinations. Flow measurement in open channels using structures. Flat-V weirs
Edition 2012-08-31

Hydrometry. Position fixing equipment for hydrometric boats
Edition 2016-10-31

Hydrometric determinations. Flow measurements in open channels using structures. Guidelines for selection of structure
Edition 2019-11-20

Code of practice for the management of observed hydrometric data
Edition 2014-12-31

Hydrometry. Hydrometric data transmission systems. Specification of system requirements
Edition 2016-02-29

Hydrometric uncertainty guidance (HUG)
Edition 2023-02-01

Hydrometric uncertainty guidance (HUG) (ISO 25377:2020)
Edition 2024-03-20

Measurement of water flow in open channels, Part 6.8: Measuring devices, instruments and equipment - Position fixing equipment for hydrometric boats (ISO 6420:2016, IDT)
Edition 2023

Hydrometric uncertainty guidance (HUG) (ISO 25377:2020); German version EN ISO 25377:2022
Edition 2024-02

Measurement of liquid flow in open channels - Method of specifying performance of hydrometric equipment
Edition 1995-06