STM PDF

Measurement of liquid flow in open channels by weirs and flumes - End depth method for estimation of flow in non-rectangular channels with a free overfall (approximate method). Original standard ISO 4371-1984 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 18481-2017

Hydrometry - Water level measuring devices. Original standard ISO 4373-2022 in PDF full version. Additional info + preview on request

Document status: Active

Liquid flow measurement in open channels - Round-nose horizontal broad-crested weirs. Original standard ISO 4374-1990 in PDF full version. Additional info + preview on request

Document status: Active

Hydrometry - Cableway systems for stream gauging. Original standard ISO 4375-2014 in PDF full version. Additional info + preview on request

Document status: Active

Cycle energy requirement - Test method. Original standard ISO 4376-2024 in PDF full version. Additional info + preview on request

Document status: Active

Hydrometric determinations - Flow measurement in open channels using structures - Flat-V weirs. Original standard ISO 4377-2012 in PDF full version. Additional info + preview on request

Document status: Active