ASTM D2034 1968 Edition, September 13, 1968
Standard Method for OPEN CHANNEL FLOW MEASUREMENT OF INDUSTRIAL WATER AND INDUSTRIAL WASTE WATER BY WEIRS
Includes all amendments and changes through Reapproval Notice , 1975
Additional Comments: W/D NO S/S
Published By:ASTM International (ASTM)
This method covers the measurement of the rate of flow <;Jf water and waste water in open channels or streams at or near the ground surface using the triangular (V-notch), rectangular and trapezoidal type weirs having end and bottom contractions.
Weirs are particularly applicable where there is low head flow at liquid ·discharge outlets for relatively clear water containing a minimum of suspended solids which, on low flows, tend to settle out upstream.