B-5
O2 flush 35 to 75 L/min
Flowmeter
Electronic flowmeters
Air range: 0 to 10 L/min
O2 range: 0 to 10 L/min
N2O range: 0 to 10 L/min
Accuracy: < ±10% of the indicated value (under 20
℃ and 101.3 kPa, for flow between 10% of full scale or 300
mL/min (whichever is greater) and full scale)
Total flowmeter
Type: Rotameter
Range: 0 to 10 L/min
Accuracy: < ±10% of the indicated value (under
20 ℃ and 101.3 kPa, for flow between 10% of full scale or 300
mL/min (whichever is greater) and full scale (calibrated at 100%
O2))
Auxiliary O2 supply
Gas supply: O2 in the system
Flow: 0 to 10 L/min
Accuracy: ±5% of full range (under 20 ℃ and
101.3 kPa, for flow between 10% of full scale or 300 mL/min
(whichever is greater) and full scale (calibrated at 100% O2));
pressure compensation not provided
O2-N2O link system
Type Mechanical proportion control device
Range O2 concentration not lower than 25%
B.6 Breathing System Specifications
System leakage and system compliance
System leakage Not greater than 150 mL/min at 3 kPa
System compliance ≤4 mL/100Pa in adult mode
Sodalime canister
leakage
Not greater than 50 mL/min at 3 kPa
APL valve leakage Not greater than 50 mL/min（The scale of APL valve is 75 cmH
2
O）
CO
2
absorber canister
Volume Approximately 1350 ml
Water collection cup
Type Can be disassembled independently
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