Six Jar Tests to a Full-Scale Setpoint: Calibration Arithmetic and Its Traps

The bench at a 300 m³/day leachate plant holds six 500 mL beakers and a rack of doses: 8, 12, 16, 20, 24 and 28 kg/m³. The run is 400 rpm for 60 seconds, then 60 rpm for 120 seconds, graded at five and thirty minutes. The curve knees at 18 kg/m³. Production runs at 21, the knee plus a 15 percent mar…