AS/NZS 4059:1996

1 - AS/NZS 4059:1996 ANAESTHETIC MACHINES - NON-ELECTRICAL - FOR USE WITH HUMANS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
6 - 3.1 Anaesthetic machine
6 - 3.2 Anaesthetic vaporizer
6 - 3.3 Compliance
6 - 3.4 Flow control valve
7 - 3.5 Flowmeter
7 - 3.6 Fresh (common) gas outlet
7 - 3.7 Gas mixer
7 - 3.8 Machine gas piping
7 - 3.9 Minute volume
7 - 3.10 Pressure regulator
7 - 3.11 Vaporizer chamber
7 - 3.12 Working pressure
7 - 4 BASIC REQUIREMENTS FOR ANAESTHETIC MACHINES
7 - 4.1 General
7 - 4.2 Mobile anaesthetic machines
7 - 4.3 Controls and gauges
7 - 4.4 Colour coding
7 - 4.5 Built-in monitors
8 - 4.6 Material compatibility with gases and mixtures used in anaesthesia
8 - 4.7 Stability
8 - 4.8 Nominal working pressure
8 - 4.9 Percentage of oxygen when air is used
8 - 4.10 Supply of carbon dioxide
8 - 5 MEDICAL GAS CYLINDER CONNECTIONS
9 - 6 PIPELINE INLET CONNECTIONS
9 - 7 PRESSURE GAUGES AND PRESSURE INDICATORS
9 - 7.1 General
9 - 7.2 Gas cylinder yoke
9 - 7.3 Gases supplied by pipeline
9 - 7.4 Graduation
9 - 7.5 Maximum permitted error
9 - 7.6 Design and construction
10 - 7.7 Gauges with analogue scales
11 - 8 PRESSURE REGULATORS
11 - 8.1 General
11 - 8.2 Relief valve
11 - 8.3 Gas supply
11 - 8.4 Failure or malfunction
11 - 8.5 Diaphragm
11 - 9 MACHINE GAS PIPING
11 - 9.1 General
11 - 9.2 Leakage
12 - 9.3 Identification
12 - 9.4 Compatibility
12 - 10 FLOW CONTROL VALVES
12 - 10.1 General
12 - 10.2 Flow maintenance
12 - 10.3 Rotary flow adjustment controls
12 - 10.4 Leakage
12 - 10.5 Position
12 - 10.6 Identification
12 - 10.7 Safety
12 - 10.8 Flow control knobs
13 - 10.9 Flow control system with threaded needle valves
13 - 11 FLOWMETERS
13 - 11.1 General
13 - 11.2 Graduation
14 - 11.3 Accuracy of gradations
14 - 11.4 Delivery of gases into a common manifold
14 - 11.5 Position of oxygen flowmeter
14 - 11.6 Visibility of flowmeter floats
14 - 11.7 Point of reference
14 - 12 GAS MIXERS
14 - 12.1 General
14 - 12.2 Identification of gases
14 - 12.3 Cross-contamination
15 - 13 VAPORIZERS
15 - 13.1 General
15 - 13.2 Use of conical connectors
15 - 13.3 Direction of gas flow
15 - 13.4 Filling of vaporizers
15 - 13.5 Concentration-calibrated vaporizers
15 - 13.5.1 Gas flow
15 - 13.5.2 Control
15 - 13.5.3 Contamination
15 - 13.5.4 Liquid level indicator
15 - 13.5.5 Rotary dials
15 - 13.5.6 Vaporizer accuracy
15 - 13.5.6.1 Without applied back pressure
16 - 13.5.6.2 With applied back pressure
16 - 13.5.7 Discharge of liquid from filled vaporizer
16 - 13.5.8 Labelling
16 - 13.5.9 Marking
16 - 13.6 Non-calibrated vaporizers
16 - 14 FRESH (COMMON) GAS OUTLET
16 - 14.1 General
16 - 14.2 Supporting structures
16 - 14.2.1 For conical connectors
17 - 14.2.2 For screw-threaded weight-bearing connectors
17 - 15 GAS POWER OUTLETS
17 - 16 OXYGEN FLUSH
17 - 16.1 General
17 - 16.2 ‘Off’ position
17 - 16.3 Oxygen delivery
17 - 16.4 Oxygen flush control
17 - 17 OXYGEN SUPPLY FAILURE
17 - 17.1 Oxygen supply failure alarm
17 - 17.1.1 General
17 - 17.1.2 Shutting off or resetting alarm
17 - 17.1.3 Gas-powered alarm
17 - 17.1.4 Visual alarm
18 - 17.2 Cut- off devices for gases other than oxygen
18 - 18 INFORMATION TO BE SUPPLIED BY THE MANUFACTURER
18 - 19 INSTRUCTION MANUAL
20 - APPENDIX A - COLOURS FOR COLOUR CODING OF VAPORIZERS
20 - A1 SCOPE
20 - A2 COLOURS
21 - APPENDIX B - NOTES ON COMBUSTIBILITY AND COMPATIBILITY OF MATERIALS USED IN ANAESTHETIC MACHINES
21 - B1 SCOPE
21 - B2 COMBUSTIBILITY OF MATERIALS IN OXYGEN AND NITROUS OXIDE
21 - B3 COMPATIBILITY OF MATERIALS WITH ANAESTHETIC AGENTS
22 - APPENDIX C - METHOD OF TEST FOR STATIC STABILITY
22 - C1 SCOPE
22 - C2 PRINCIPLE
22 - C3 APPARATUS
22 - C4 PROCEDURE
22 - C5 REPORT
23 - APPENDIX D - METHOD OF TEST FOR MOBILE STABILITY
23 - D1 SCOPE
23 - D2 PRINCIPLE
23 - D3 APPARATUS
23 - D4 PROCEDURE
23 - D5 REPORT
24 - APPENDIX E - METHOD OF TEST FOR CROSS- CONTAMINATION
24 - E1 SCOPE
24 - E2 PRINCIPLE
24 - E3 APPARATUS
24 - E4 PROCEDURE
24 - E4.1 Cross-contamination from gas source 1 to gas source 2
25 - E4.2 Cross-contamination from gas source 2 to gas source 1
25 - E5 REPORT
26 - APPENDIX F - METHOD OF TEST FOR VAPORIZER ACCURACY WITHOUT APPLIED BACK PRESSURE
26 - F1 SCOPE
26 - F2 PRINCIPLE
26 - F3 APPARATUS AND MATERIALS
26 - F4 PROCEDURE
27 - F5 REPORT
28 - APPENDIX G - METHOD OF TEST FOR VAPORIZER ACCURACY WITH APPLIED BACK PRESSURE
28 - G1 SCOPE
28 - G2 PRINCIPLE
28 - G3 APPARATUS AND MATERIALS
28 - G4 PROCEDURE
29 - G5 REPORT
30 - APPENDIX H - METHOD OF FILLING THE VAPORIZER PRIOR TO TESTING FOR LIQUID DISCHARGE
30 - H1 SCOPE
30 - H2 PRINCIPLE
30 - H3 APPARATUS
30 - H4 PROCEDURE
30 - H4.1 Fillers into which anaesthetic agent is poured directly from a bottle
30 - H4.2 Fillers where the vaporizer is directly connected to the bottle of anaesthetic agent (agent-specific filling system)