Cart 0 Product Products (empty)
No products
To be determined Shipping
$0.00 Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart. There is 1 item in your cart.
Total products
Total shipping To be determined
Total
New Sale! 
View larger
View larger ISO 9123:2001
New product
ISO 9123:2001 Measurement of liquid flow in open channels - Stage-fall-discharge relationships
standard by International Organization for Standardization, 11/01/2001
More info
Full Description
This International Standard specifies methods for determining stage-fall-discharge relationships for a stream reach where variable backwater occurs either intermittently or continuously. Two gauging stations, a base reference gauge and an auxiliary gauge are required for gauge height measurements. A number of discharge measurements are required in order to calibrate the rating to the accuracy required by this International Standard.
The preparation of rating curves is not described in detail in this International Standard.