FLOW DETERMINATION BY CHEMICAL METHOD

In many instances, it is inconvenient to install a weir or other flow measuring devices to determine the mass flow rate of white water, thin stock, or various process waters. In such a case, a known salt solution, such as sodium thiosulfate, is introduced at a certain mass flow rate into an unknown flow. By determining the dilution of the salt in the unknown stream, the mass flow rate can be determined.

This Technical Information Paper (TIP) requires the use and disposal of chemicals which may present serious health hazards. Procedures for the handling of these chemicals are set forth on the Safety Data Sheets (SDS) issued by the chemical manufacturers and distributors. The users should follow the procedures specified on the SDS as well as the regulations by local, state, and federal for safe use and proper disposal of these chemicals.