If a mixing tank is used for different reagents, and if a hazard exists, the tank and distribution lines should be flushed after mixing each reagent.
Ariz. Admin. Code § R11-1-2036
If a mixing tank is used for different reagents, and if a hazard exists, the tank and distribution lines should be flushed after mixing each reagent.
Ariz. Admin. Code § R11-1-2036