1 Scope
1.1 Scope
This Standard covers clamp-on water submeters designed for installation on the exterior of existing piping systems without pipe penetration or modification. These submeters are intended for secondary water measurement applications where sub-billing based on usage allocation, or non-billing monitoring, is required beyond the point of primary metering.
The Standard establishes minimum requirements for materials, supported pipe types and sizes, accuracy classifications, performance testing, data accessibility, environmental operating conditions, and product marking.
This Standard does not apply to inline or insertion-style water meters, which serve as primary meters for utility billing.
Devices that only output instantaneous flow rate do not meet the requirements of this Standard.
