Standard
Track updates
AS/NZS 4774.2:2019
[Current]Sets out requirements and recommendations for the design, construction, operation and maintenance of pressure vessels used for human occupancy other than those used in conjunction with, and support of, underwater diving operations.
Published: 06/05/2019
Pages: 76
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Application
1.3 Referenced documents
1.4 Related documents
1.5 Definitions
1.6 Relationship with legislation
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
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
3.1.5.1 General
3.1.5.2 Flooring
3.1.5.3 Paints
3.1.6 Pressure relief
3.1.7 Pressure measuring
3.1.8 Control panel
3.1.8.1 General
3.1.8.2 Control of pressure
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
3.4.1.1 Medical gas supply
3.4.1.2 Medical air
3.4.1.3 Medical gas exhaust system
3.4.1.4 Medical gas piping
3.4.1.5 Medical gas system cleanliness
3.4.2 Gas analysis system
3.4.2.1 General
3.4.2.2 Oxygen levels
3.4.2.3 Carbon Dioxide levels
3.4.2.4 Carbon Monoxide levels
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
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
4.1.5.1 General
4.1.5.2 Paints
4.1.6 Pressure relief
4.1.7 Pressure measurement
4.1.8 Control panel
4.1.8.1 General
4.1.8.2 Control of pressure
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
4.4.1.1 Medical gas supply
4.4.1.2 Medical air
4.4.1.3 Medical gas exhaust system
4.4.1.4 Medical gas piping
4.4.1.5 Medical gas system cleanliness
4.4.2 Gas analysis system
4.4.2.1 General
4.4.2.2 Oxygen levels
4.4.2.3 Carbon Dioxide levels
4.4.2.4 Carbon Monoxide levels
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
5 Preventive maintenance and cleaning
5.1 System maintenance
5.2 Chamber cleaning
5.3 Lubricants
5.4 Contamination
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
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
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
8.8.3.1 Multiplace chambers
8.8.3.2 Monoplace chambers
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
9 Preparation of patients for hyperbaric oxygen therapy
9.1 Patient assessment and preparation
9.2 Patient orientation
10 Minimum medical equipment for a hyperbaric oxygen therapy facility
10.1 General
10.2 Minimum medical equipment
Appendix A
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
B1 Scope
B2 Selection criteria
B3 Length of course
B4 Course organization
B5 Course objective
B6 Course content
Appendix C
C1 Scope
C2 Selection criteria
C3 Length of course
C4 Course organization
C5 Course objective
C6 Course content
Appendix D
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
E1 Scope
E2 Selection criteria
E3 Length of orientation
E4 Objective of orientation
E5 Orientation content
Appendix F
Appendix G
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
Cited references in this standard
BSI PD 5500
Specification for unfired fusion welded pressure vessels
ASTM G93
Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments
ASME PVHO-1
Safety standard for pressure vessels for human occupancy
IEC/TR 60877
Procedures for ensuring the cleanliness of industrial-process measurement and control equipment in oxygen service