Specifies methods for the measurement of water flow in open channels using rectangular and triangular-notch (V-notch) thin-plate weirs. The flow conditions considered are limited to steady, free and fully ventilated discharge. Recommended discharge coefficients are applicable to water only in the approximate range of temperatures from 5 to 30 °C.
Revises
ISO 1438:1975
WITHDRAWN
ISO 1438-1:1980
95.99
Withdrawal of Standard
Apr 2, 2008
Amended by
ISO 1438-1:1980/Amd 1:1998
WITHDRAWN
ISO 1438:2008
Only informative sections of projects are publicly available. To view the full content, you will need to members of the committee. If you are a member, please log in to your account by clicking on the "Log in" button.