AS/NZS 4774.2:2019
Work in compressed air and hyperbaric facilities Part 2: Hyperbaric Oxygen facilities
This standard provides designers, manufacturers, operators and maintainers of hyperbaric Oxygen facilities with requirements and recommendations so that safe hyperbaric exposures of all persons involved in the operation of such facilities may be conducted.
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AS/NZS 4774.2:2019 WORK IN COMPRESSED AIR AND HYPERBARIC FACILITIES - HYPERBARIC OXYGEN FACILITIES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 REFERENCED DOCUMENTS
1.4 RELATED DOCUMENTS
1.5 DEFINITIONS
1.5.1 Air environment
1.5.2 Competent person
1.5.3 Control panel
1.5.4 Hyperbaric attendant
1.5.5 Hyperbaric chamber
1.5.6 Hyperbaric chamber supervisor
1.5.7 Hyperbaric safety director
1.5.8 Monoplace chamber
1.5.9 Multilock chamber
1.5.10 Multiplace chamber
1.5.11 Multiplace hyperbaric chamber operator (MHCO)
1.5.12 Oxygen-enriched environment
1.5.13 Patient
1.5.14 Pressure measuring device
1.5.15 Registered medical practitioner
1.5.16 Shall
1.5.17 Should
1.5.18 Single lock chamber
1.6 RELATIONSHIP WITH LEGISLATION
SECTION 2 CHAMBER FACILITY
2.1 GENERAL
2.2 CHAMBER FACILITY FIRE PROTECTION
2.3 EMERGENCY SYSTEMS
2.4 PATIENT SUPPORT CONSIDERATIONS
2.5 OTHER SPACE CONSIDERATIONS
SECTION 3 MULTIPLACE CHAMBER OPERATIONAL SYSTEMS
3.1 GENERAL
3.1.1 Pressure vessel (chamber)
3.1.2 Viewports (windows)
3.1.3 Chamber entry and exit
3.1.4 Penetrators
3.1.5 Fitting, furniture and fixtures
3.1.6 Pressure relief
3.1.7 Pressure measuring
3.1.8 Control panel
3.1.9 Exhaust
3.1.10 Pipe threads and tube sizes
3.2 AIR PRESSURIZATION SYSTEM
3.2.1 General
3.2.2 Air purity standards
3.2.3 Air compressor intake
3.2.4 Filtration and monitoring
3.2.5 Air storage system
3.2.6 Air piping systems
3.3 OXYGEN SUPPLY SYSTEM
3.4 MEDICAL GAS SYSTEMS
3.4.1 Breathing
3.4.2 Gas analysis system
3.5 ENVIRONMENTAL CONDITIONING SYSTEM
3.6 COMMUNICATION SYSTEM
3.6.1 Voice
3.6.2 Visual
3.7 PATIENT MONITORING SYSTEM
3.8 LIGHTING SYSTEM
3.9 ELECTRICAL SYSTEMS
3.10 FIRE SUPPRESSION SYSTEM
3.11 SOUND ATTENUATION
3.12 CLOTHING AND TEXTILES
3.13 PROHIBITED AND RESTRICTED MATERIALS
3.13.1 General
3.13.2 Flammable gases, vapours or liquids
3.13.3 Mercury
3.13.4 Chemicals, drugs, pharmaceuticals, medical materials and surgical dressings
3.13.5 Alloys
3.13.6 Oil-based toiletries and cosmetics
3.13.7 Paper products
3.13.8 Lithium batteries
SECTION 4 MONOPLACE CHAMBERS
4.1 GENERAL
4.1.1 Pressure vessel (monoplace chamber)
4.1.2 Viewports (windows)
4.1.3 Chamber access
4.1.4 Penetrators
4.1.5 Fitting, furniture and fixtures
4.1.6 Pressure relief
4.1.7 Pressure measurement
4.1.8 Control panel
4.1.9 Exhaust
4.1.10 Pipe threads and tube sizes
4.2 OXYGEN PRESSURIZATION SYSTEM
4.2.1 General
4.2.2 Oxygen purity standards
4.2.3 Filtration and monitoring
4.2.4 Oxygen storage system
4.2.5 Oxygen piping systems
4.3 AIR PRESSURIZATION SYSTEM (if used)
4.3.1 General
4.3.2 Air purity standards
4.3.3 Air compressor intake
4.3.4 Filtration and monitoring
4.3.5 Air storage system
4.3.6 Air piping systems
4.4 MEDICAL GAS SYSTEMS
4.4.1 Breathing
4.4.2 Gas analysis system
4.5 ENVIRONMENTAL CONDITIONING SYSTEM
4.6 COMMUNICATION SYSTEM
4.6.1 Voice
4.6.2 Visual
4.7 PATIENT MONITORING SYSTEM
4.8 LIGHTING SYSTEM
4.9 ELECTRICAL SYSTEMS
4.10 FIRE SUPPRESSION SYSTEM
4.11 SOUND ATTENUATION
4.12 CLOTHING AND TEXTILES
4.13 PROHIBITED AND RESTRICTED MATERIALS
4.13.1 General
4.13.2 Flammable gases, vapours or liquids
4.13.3 Mercury
4.13.4 Chemicals, drugs, pharmaceuticals, medical materials and surgical dressings
4.13.5 Alloys
4.13.6 Oil-based toiletries and cosmetics
4.13.7 Paper products
4.13.8 Lithium batteries
SECTION 5 PREVENTIVE MAINTENANCE AND CLEANING
5.1 SYSTEM MAINTENANCE
5.2 CHAMBER CLEANING
5.3 LUBRICANTS
5.4 CONTAMINATION
SECTION 6 RISK MANAGEMENT FOR HYPERBARIC FACILITIES
6.1 GENERAL
6.2 HAZARD IDENTIFICATION
6.3 RISK ASSESSMENT
6.4 RISK CONTROL
6.5 EMERGENCY PROCEDURES
6.6 REGULAR REVIEW OF EMERGENCY PROCEDURES
SECTION 7 PERSONNEL FOR HYPERBARIC FACILITIES
7.1 GENERAL
7.2 MEDICAL PRACTITIONERS
7.2.1 General
7.2.2 Senior hyperbaric medical practitioner (SHMP)
7.2.3 Hyperbaric medical practitioner (HMP)
7.2.4 Hyperbaric medical officer (HMO)
7.3 HYPERBARIC ATTENDANT
7.4 SUPERVISION AND OPERATION OF HYPERBARIC CHAMBERS
7.4.1 Hyperbaric chamber supervisor (HCS)
7.4.2 Multiplace hyperbaric chamber operator (MHCO)
7.4.3 Monoplace chamber operator (MPO)
7.5 MINIMUM STAFF QUALIFICATIONS
SECTION 8 STAFFING OF HYPERBARIC FACILITIES
8.1 DETERMINATION OF APPROPRIATE STAFFING
8.2 HYPERBARIC SAFETY DIRECTOR
8.3 HYPERBARIC CHAMBER SUPERVISOR
8.4 PATIENT CARE
8.5 EQUIPMENT-SPECIFIC TRAINING
8.6 ALLOCATION OF ROLES
8.7 FACILITY MANAGEMENT
8.7.1 Medical director
8.7.2 Hyperbaric nursing manager
8.7.3 Senior hyperbaric chamber supervisor
8.8 PATIENT MANAGEMENT AND CHAMBER OPERATION
8.8.1 Attending medical officer
8.8.2 Inside hyperbaric attendant
8.8.3 Outside hyperbaric attendant
8.8.4 Hyperbaric chamber supervisor (HCS)
8.8.5 Multiplace hyperbaric chamber operator (MHCO)
8.8.6 Monoplace chamber operator (MPO)
8.9 STAFF FITNESS TO ENTER HYPERBARIC ENVIRONMENT
8.10 EXCEPTIONS TO FULL MEDICAL ASSESSMENT
SECTION 9 PREPARATION OF PATIENTS FOR HYPERBARIC OXYGEN THERAPY
9.1 PATIENT ASSESSMENT AND PREPARATION
9.2 PATIENT ORIENTATION
SECTION 10 MINIMUM MEDICAL EQUIPMENT FOR A HYPERBARIC OXYGEN THERAPY FACILITY
10.1 GENERAL
10.2 MINIMUM MEDICAL EQUIPMENT
APPENDIX A - MINIMUM MAINTENANCE SCHEDULE
A1 SCOPE
A2 SCHEDULE
A3 DAILY CHECKS
A4 WEEKLY CHECKS
A5 MONTHLY CHECKS
A6 THREE-MONTHLY CHECKS
A7 SIX-MONTHLY CHECKS
A8 12-MONTHLY CHECKS
APPENDIX B - HYPERBARIC ATTENDANT COURSE
B1 SCOPE
B2 SELECTION CRITERIA
B3 LENGTH OF COURSE
B4 COURSE ORGANIZATION
B5 COURSE OBJECTIVE
B6 COURSE CONTENT
APPENDIX C - MONOPLACE CHAMBER OPERATOR COURSE
C1 SCOPE
C2 SELECTION CRITERIA
C3 LENGTH OF COURSE
C4 COURSE ORGANIZATION
C5 COURSE OBJECTIVE
C6 COURSE CONTENT
APPENDIX D - HYPERBARIC CHAMBER SUPERVISOR TRAINING AND ORIENTATION
D1 SCOPE
D2 DESCRIPTION
D3 SELECTION CRITERIA
D3.1 General
D3.2 Recognition of prior learning
D4 LENGTH OF ORIENTATION
D5 OBJECTIVE OF ORIENTATION
D6 ORIENTATION CONTENT
APPENDIX E - MULTIPLACE HYPERBARIC CHAMBER OPERATOR TRAINING
E1 SCOPE
E2 SELECTION CRITERIA
E3 LENGTH OF ORIENTATION
E4 OBJECTIVE OF ORIENTATION
E5 ORIENTATION CONTENT
APPENDIX F - MEDICAL EXAMINATION FORMS
APPENDIX G - GUIDANCE FOR MEDICAL PRACTITIONERS
G1 INTRODUCTION
G2 CONDUCTING MEDICAL EXAMINATIONS
G3 FITNESS CRITERIA
G3.1 Introduction
G3.2 Age
G3.3 Obesity
G3.4 Skin
G3.5 Vision
G3.6 Ear, nose and throat
G3.7 Hearing
G3.8 Teeth
G3.9 Central nervous system
G3.10 Cardiovascular system
G3.11 Respiratory system
G3.12 Gastrointestinal tract
G3.13 Musculoskeletal function
G3.14 Endocrine system
G3.15 Screening for dysbaric osteonecrosis (long bone X-rays and radioisotope scans)
G3.16 Mental health
G3.17 Other criteria
G4 TRAINING IN DIVING AND HYPERBARIC MEDICINE
APPENDIX H - DOCUMENTS OF INTEREST
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References
- AS/NZS 2299.1 Supplement 1:2015
Occupational diving operations - Part 1: Standard operational practice - Supplement 1: AS/NZS 2299 diving medical examination forms (Supplement to AS/NZS 2299.1:2015)
NZS 4541:2013Automatic fire sprinkler systems
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AS/NZS 4774.2:2019 WORK IN COMPRESSED AIR AND HYPERBARIC FACILITIES - HYPERBARIC OXYGEN FACILITIES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.3 REFERENCED DOCUMENTS
1.4 RELATED DOCUMENTS
1.5 DEFINITIONS
1.5.1 Air environment
1.5.2 Competent person
1.5.3 Control panel
1.5.4 Hyperbaric attendant
1.5.5 Hyperbaric chamber
1.5.6 Hyperbaric chamber supervisor
1.5.7 Hyperbaric safety director
1.5.8 Monoplace chamber
1.5.9 Multilock chamber
1.5.10 Multiplace chamber
1.5.11 Multiplace hyperbaric chamber operator (MHCO)
1.5.12 Oxygen-enriched environment
1.5.13 Patient
1.5.14 Pressure measuring device
1.5.15 Registered medical practitioner
1.5.16 Shall
1.5.17 Should
1.5.18 Single lock chamber
1.6 RELATIONSHIP WITH LEGISLATION
SECTION 2 CHAMBER FACILITY
2.1 GENERAL
2.2 CHAMBER FACILITY FIRE PROTECTION
2.3 EMERGENCY SYSTEMS
2.4 PATIENT SUPPORT CONSIDERATIONS
2.5 OTHER SPACE CONSIDERATIONS
SECTION 3 MULTIPLACE CHAMBER OPERATIONAL SYSTEMS
3.1 GENERAL
3.1.1 Pressure vessel (chamber)
3.1.2 Viewports (windows)
3.1.3 Chamber entry and exit
3.1.4 Penetrators
3.1.5 Fitting, furniture and fixtures
3.1.6 Pressure relief
3.1.7 Pressure measuring
3.1.8 Control panel
3.1.9 Exhaust
3.1.10 Pipe threads and tube sizes
3.2 AIR PRESSURIZATION SYSTEM
3.2.1 General
3.2.2 Air purity standards
3.2.3 Air compressor intake
3.2.4 Filtration and monitoring
3.2.5 Air storage system
3.2.6 Air piping systems
3.3 OXYGEN SUPPLY SYSTEM
3.4 MEDICAL GAS SYSTEMS
3.4.1 Breathing
3.4.2 Gas analysis system
3.5 ENVIRONMENTAL CONDITIONING SYSTEM
3.6 COMMUNICATION SYSTEM
3.6.1 Voice
3.6.2 Visual
3.7 PATIENT MONITORING SYSTEM
3.8 LIGHTING SYSTEM
3.9 ELECTRICAL SYSTEMS
3.10 FIRE SUPPRESSION SYSTEM
3.11 SOUND ATTENUATION
3.12 CLOTHING AND TEXTILES
3.13 PROHIBITED AND RESTRICTED MATERIALS
3.13.1 General
3.13.2 Flammable gases, vapours or liquids
3.13.3 Mercury
3.13.4 Chemicals, drugs, pharmaceuticals, medical materials and surgical dressings
3.13.5 Alloys
3.13.6 Oil-based toiletries and cosmetics
3.13.7 Paper products
3.13.8 Lithium batteries
SECTION 4 MONOPLACE CHAMBERS
4.1 GENERAL
4.1.1 Pressure vessel (monoplace chamber)
4.1.2 Viewports (windows)
4.1.3 Chamber access
4.1.4 Penetrators
4.1.5 Fitting, furniture and fixtures
4.1.6 Pressure relief
4.1.7 Pressure measurement
4.1.8 Control panel
4.1.9 Exhaust
4.1.10 Pipe threads and tube sizes
4.2 OXYGEN PRESSURIZATION SYSTEM
4.2.1 General
4.2.2 Oxygen purity standards
4.2.3 Filtration and monitoring
4.2.4 Oxygen storage system
4.2.5 Oxygen piping systems
4.3 AIR PRESSURIZATION SYSTEM (if used)
4.3.1 General
4.3.2 Air purity standards
4.3.3 Air compressor intake
4.3.4 Filtration and monitoring
4.3.5 Air storage system
4.3.6 Air piping systems
4.4 MEDICAL GAS SYSTEMS
4.4.1 Breathing
4.4.2 Gas analysis system
4.5 ENVIRONMENTAL CONDITIONING SYSTEM
4.6 COMMUNICATION SYSTEM
4.6.1 Voice
4.6.2 Visual
4.7 PATIENT MONITORING SYSTEM
4.8 LIGHTING SYSTEM
4.9 ELECTRICAL SYSTEMS
4.10 FIRE SUPPRESSION SYSTEM
4.11 SOUND ATTENUATION
4.12 CLOTHING AND TEXTILES
4.13 PROHIBITED AND RESTRICTED MATERIALS
4.13.1 General
4.13.2 Flammable gases, vapours or liquids
4.13.3 Mercury
4.13.4 Chemicals, drugs, pharmaceuticals, medical materials and surgical dressings
4.13.5 Alloys
4.13.6 Oil-based toiletries and cosmetics
4.13.7 Paper products
4.13.8 Lithium batteries
SECTION 5 PREVENTIVE MAINTENANCE AND CLEANING
5.1 SYSTEM MAINTENANCE
5.2 CHAMBER CLEANING
5.3 LUBRICANTS
5.4 CONTAMINATION
SECTION 6 RISK MANAGEMENT FOR HYPERBARIC FACILITIES
6.1 GENERAL
6.2 HAZARD IDENTIFICATION
6.3 RISK ASSESSMENT
6.4 RISK CONTROL
6.5 EMERGENCY PROCEDURES
6.6 REGULAR REVIEW OF EMERGENCY PROCEDURES
SECTION 7 PERSONNEL FOR HYPERBARIC FACILITIES
7.1 GENERAL
7.2 MEDICAL PRACTITIONERS
7.2.1 General
7.2.2 Senior hyperbaric medical practitioner (SHMP)
7.2.3 Hyperbaric medical practitioner (HMP)
7.2.4 Hyperbaric medical officer (HMO)
7.3 HYPERBARIC ATTENDANT
7.4 SUPERVISION AND OPERATION OF HYPERBARIC CHAMBERS
7.4.1 Hyperbaric chamber supervisor (HCS)
7.4.2 Multiplace hyperbaric chamber operator (MHCO)
7.4.3 Monoplace chamber operator (MPO)
7.5 MINIMUM STAFF QUALIFICATIONS
SECTION 8 STAFFING OF HYPERBARIC FACILITIES
8.1 DETERMINATION OF APPROPRIATE STAFFING
8.2 HYPERBARIC SAFETY DIRECTOR
8.3 HYPERBARIC CHAMBER SUPERVISOR
8.4 PATIENT CARE
8.5 EQUIPMENT-SPECIFIC TRAINING
8.6 ALLOCATION OF ROLES
8.7 FACILITY MANAGEMENT
8.7.1 Medical director
8.7.2 Hyperbaric nursing manager
8.7.3 Senior hyperbaric chamber supervisor
8.8 PATIENT MANAGEMENT AND CHAMBER OPERATION
8.8.1 Attending medical officer
8.8.2 Inside hyperbaric attendant
8.8.3 Outside hyperbaric attendant
8.8.4 Hyperbaric chamber supervisor (HCS)
8.8.5 Multiplace hyperbaric chamber operator (MHCO)
8.8.6 Monoplace chamber operator (MPO)
8.9 STAFF FITNESS TO ENTER HYPERBARIC ENVIRONMENT
8.10 EXCEPTIONS TO FULL MEDICAL ASSESSMENT
SECTION 9 PREPARATION OF PATIENTS FOR HYPERBARIC OXYGEN THERAPY
9.1 PATIENT ASSESSMENT AND PREPARATION
9.2 PATIENT ORIENTATION
SECTION 10 MINIMUM MEDICAL EQUIPMENT FOR A HYPERBARIC OXYGEN THERAPY FACILITY
10.1 GENERAL
10.2 MINIMUM MEDICAL EQUIPMENT
APPENDIX A - MINIMUM MAINTENANCE SCHEDULE
A1 SCOPE
A2 SCHEDULE
A3 DAILY CHECKS
A4 WEEKLY CHECKS
A5 MONTHLY CHECKS
A6 THREE-MONTHLY CHECKS
A7 SIX-MONTHLY CHECKS
A8 12-MONTHLY CHECKS
APPENDIX B - HYPERBARIC ATTENDANT COURSE
B1 SCOPE
B2 SELECTION CRITERIA
B3 LENGTH OF COURSE
B4 COURSE ORGANIZATION
B5 COURSE OBJECTIVE
B6 COURSE CONTENT
APPENDIX C - MONOPLACE CHAMBER OPERATOR COURSE
C1 SCOPE
C2 SELECTION CRITERIA
C3 LENGTH OF COURSE
C4 COURSE ORGANIZATION
C5 COURSE OBJECTIVE
C6 COURSE CONTENT
APPENDIX D - HYPERBARIC CHAMBER SUPERVISOR TRAINING AND ORIENTATION
D1 SCOPE
D2 DESCRIPTION
D3 SELECTION CRITERIA
D3.1 General
D3.2 Recognition of prior learning
D4 LENGTH OF ORIENTATION
D5 OBJECTIVE OF ORIENTATION
D6 ORIENTATION CONTENT
APPENDIX E - MULTIPLACE HYPERBARIC CHAMBER OPERATOR TRAINING
E1 SCOPE
E2 SELECTION CRITERIA
E3 LENGTH OF ORIENTATION
E4 OBJECTIVE OF ORIENTATION
E5 ORIENTATION CONTENT
APPENDIX F - MEDICAL EXAMINATION FORMS
APPENDIX G - GUIDANCE FOR MEDICAL PRACTITIONERS
G1 INTRODUCTION
G2 CONDUCTING MEDICAL EXAMINATIONS
G3 FITNESS CRITERIA
G3.1 Introduction
G3.2 Age
G3.3 Obesity
G3.4 Skin
G3.5 Vision
G3.6 Ear, nose and throat
G3.7 Hearing
G3.8 Teeth
G3.9 Central nervous system
G3.10 Cardiovascular system
G3.11 Respiratory system
G3.12 Gastrointestinal tract
G3.13 Musculoskeletal function
G3.14 Endocrine system
G3.15 Screening for dysbaric osteonecrosis (long bone X-rays and radioisotope scans)
G3.16 Mental health
G3.17 Other criteria
G4 TRAINING IN DIVING AND HYPERBARIC MEDICINE
APPENDIX H - DOCUMENTS OF INTEREST