1.Measuring bowl volume:7000ml±25ml 

2.Aerosol content range:0%-10 

3.Aggregate particle size:≤40mm 

4.Test error: 1%-4%±0.15%, 5%-7%±0.2%, 8%- 10%±0.25%. 

5.Pressure gauge range: 0.25Mpa; precision 0.00025Mpa 

6.Allowable error of test: direct reading ±0.25%; non-direct reading ±0.5% 

7.Initial pressure point (direct reading method): 5 (according to its environment and operator can choose) 

8.Initial pressure point (non-direct reading method): 0.1Mpa 

9.Test exhaust method: manual slide valve