AS/NZS 4233.1:1999
High pressure water (hydro) jetting systems - Guidelines for safe operation and maintenance
Provides guidance on the various issues which need to be addressed when high pressure water jetting operations are performed. The Standard also provides recommendations for the elimination or reduction of hazards and risk associated with high pressure water jetting operations.
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AS/NZS 4233.1:1999 HIGH PRESSURE WATER (HYDRO) JETTING SYSTEMS - GUIDELINES FOR SAFE OPERATION AND MAINTENANCE
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 OBJECTIVE
1.3 APPLICATION
1.4 GENERAL PRINCIPLES
1.5 REFERENCED DOCUMENTS
1.6 RELATED DOCUMENTS
1.7 DEFINITIONS
1.7.1 Automatic unloader valve
1.7.2 Bar litres per minute
1.7.3 Bursting disc
1.7.4 Capable person (New Zealand)
1.7.5 Changeover valve
1.7.6 Class A systems
1.7.7 Class B systems
1.7.8 Competent person (Australia)
1.7.9 Dry shut-off valve
1.7.10 Dump system
1.7.11 Electrical control system
1.7.12 Fan jet
1.7.13 Flexible lance
1.7.14 Foot control valve
1.7.15 High pressure water cleaning
1.7.16 High pressure water cutting
1.7.17 High pressure water jetting system
1.7.18 Hose assembly
1.7.19 Jetting gun
1.7.20 Lancing
1.7.21 Moleing
1.7.22 Nozzle
1.7.23 Occupier
1.7.24 Operator
1.7.25 Operator trainee
1.7.26 Reaction force
1.7.27 Regulator valve
1.7.28 Refresher training
1.7.29 Relief valve
1.7.30 Retro gun
1.7.31 Rigid lance
1.7.32 Safety observer
1.7.33 Safety valve
1.7.34 Shotgunning
1.7.35 Should
1.7.36 Water jet
SECTION 2 GENERAL RECOMMENDATIONS
2.1 GENERAL
2.2 LIMITATION AND USE
2.3 SAFEGUARDS
SECTION 3 INSPECTION, CARE AND MAINTENANCE
3.1 GENERAL
3.2 MAINTENANCE
3.2.1 Pump unit
3.2.2 Filters and strainers
3.2.3 Hose assemblies
3.2.4 Re-end hose assemblies
3.2.5 Jetting nozzles
3.2.6 Jetting guns and lances
3.2.7 Foot control valves
3.2.8 Electrical equipment
3.2.9 Trailer and skid-mounted units
3.2.10 Engine controls
3.2.11 Operational leaks
3.3 SERVICING
3.4 REPAIRS
3.5 TOOLS
3.6 COMPATIBILITY
3.7 MAINTENANCE RECORD
SECTION 4 PERSONAL PROTECTIVE EQUIPMENT
4.1 GENERAL
4.2 HEAD PROTECTION
4.3 EYE PROTECTION
4.4 BODY PROTECTION
4.5 HAND PROTECTION
4.6 FOOT PROTECTION
4.7 HEARING PROTECTION
4.8 RESPIRATORY PROTECTION
SECTION 5 PRE-OPERATIONAL PROCEDURES
5.1 PLANNING
5.2 CHECKLIST
5.3 SYSTEM CONTROL
5.4 WORK AREAS
5.4.1 Area limits
5.4.2 Warning barriers
5.4.3 Warning notices
5.5 HOOK-UP
5.5.1 Hoses
5.5.2 Fittings
5.5.3 Nozzles
5.5.4 Preflushing
5.5.5 Electrical equipment
SECTION 6 OPERATIONAL PROCEDURES
6.1 GENERAL
6.2 WORK AREAS
6.2.1 Limitations
6.2.2 Access
6.2.3 Approaching the jet operator
6.3 PERSONAL PROTECTIVE EQUIPMENT (PPE)
6.4 OPERATIONS
6.4.1 Commencement
6.4.2 Confined space working
6.4.3 Adjustments
6.4.4 Equipment malfunction
6.4.5 Reaction force
6.4.6 Effect of line pulses
6.4.7 Hose assemblies
6.4.8 Hose protection
6.4.9 Improper use
6.4.10 Operator positioning
6.4.11 Work stoppage
6.4.12 Work surface
6.4.13 Side protection
6.4.14 Corrosive materials
6.4.15 Additives
6.5 PRESSURIZING SYSTEMS
6.6 OPERATING PERSONNEL
6.6.1 Single-person operation
6.6.2 Multiple-person operations
6.6.3 Job rotation
6.6.4 Team leader
6.6.5 Communications
6.6.6 Fitness
6.7 HAND GUN OPERATIONS
6.8 LANCING AND PIPE CLEANING
6.8.1 Control
6.8.2 Retrojets
6.8.3 Clearance
6.8.4 Pressurization
6.8.5 End identification
6.8.6 Nozzle
SECTION 7 OPERATIONAL AND TRAINING RECOMMENDATION FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS
7.1 QUALIFIED OPERATORS
7.2 TRAINING
7.3 REFRESHER TRAINING
SECTION 8 PERMANENT CLEANING AREAS
8.1 GENERAL
8.2 ENCLOSURE
8.3 ACCESS
8.4 HAZARDS
8.5 ELECTRICAL HAZARDS
8.6 WASTE COLLECTION
SECTION 9 INCIDENT AND ACCIDENT REPORTING FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS
9.1 REPORTING
9.2 PERSONAL INJURIES
9.3 MEDICAL RECOMMENDATION
9.4 IMMEDIATE FIRST AID
9.5 MEDICAL ALERT CARD
APPENDIX A - PRESSURE FLOW DIAGRAM
APPENDIX B - INSPECTION, CARE AND MAINTENANCE OF HOSE ASSEMBLIES
APPENDIX C - TYPICAL EXAMPLE OF A PRE-SERVICE AND OPERATIONAL CHECKLIST FOR PRESSURIZED WATER JET CLEANING
APPENDIX D - HAND SIGNALS
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AS/NZS 4233.1:1999 HIGH PRESSURE WATER (HYDRO) JETTING SYSTEMS - GUIDELINES FOR SAFE OPERATION AND MAINTENANCE
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 OBJECTIVE
1.3 APPLICATION
1.4 GENERAL PRINCIPLES
1.5 REFERENCED DOCUMENTS
1.6 RELATED DOCUMENTS
1.7 DEFINITIONS
1.7.1 Automatic unloader valve
1.7.2 Bar litres per minute
1.7.3 Bursting disc
1.7.4 Capable person (New Zealand)
1.7.5 Changeover valve
1.7.6 Class A systems
1.7.7 Class B systems
1.7.8 Competent person (Australia)
1.7.9 Dry shut-off valve
1.7.10 Dump system
1.7.11 Electrical control system
1.7.12 Fan jet
1.7.13 Flexible lance
1.7.14 Foot control valve
1.7.15 High pressure water cleaning
1.7.16 High pressure water cutting
1.7.17 High pressure water jetting system
1.7.18 Hose assembly
1.7.19 Jetting gun
1.7.20 Lancing
1.7.21 Moleing
1.7.22 Nozzle
1.7.23 Occupier
1.7.24 Operator
1.7.25 Operator trainee
1.7.26 Reaction force
1.7.27 Regulator valve
1.7.28 Refresher training
1.7.29 Relief valve
1.7.30 Retro gun
1.7.31 Rigid lance
1.7.32 Safety observer
1.7.33 Safety valve
1.7.34 Shotgunning
1.7.35 Should
1.7.36 Water jet
SECTION 2 GENERAL RECOMMENDATIONS
2.1 GENERAL
2.2 LIMITATION AND USE
2.3 SAFEGUARDS
SECTION 3 INSPECTION, CARE AND MAINTENANCE
3.1 GENERAL
3.2 MAINTENANCE
3.2.1 Pump unit
3.2.2 Filters and strainers
3.2.3 Hose assemblies
3.2.4 Re-end hose assemblies
3.2.5 Jetting nozzles
3.2.6 Jetting guns and lances
3.2.7 Foot control valves
3.2.8 Electrical equipment
3.2.9 Trailer and skid-mounted units
3.2.10 Engine controls
3.2.11 Operational leaks
3.3 SERVICING
3.4 REPAIRS
3.5 TOOLS
3.6 COMPATIBILITY
3.7 MAINTENANCE RECORD
SECTION 4 PERSONAL PROTECTIVE EQUIPMENT
4.1 GENERAL
4.2 HEAD PROTECTION
4.3 EYE PROTECTION
4.4 BODY PROTECTION
4.5 HAND PROTECTION
4.6 FOOT PROTECTION
4.7 HEARING PROTECTION
4.8 RESPIRATORY PROTECTION
SECTION 5 PRE-OPERATIONAL PROCEDURES
5.1 PLANNING
5.2 CHECKLIST
5.3 SYSTEM CONTROL
5.4 WORK AREAS
5.4.1 Area limits
5.4.2 Warning barriers
5.4.3 Warning notices
5.5 HOOK-UP
5.5.1 Hoses
5.5.2 Fittings
5.5.3 Nozzles
5.5.4 Preflushing
5.5.5 Electrical equipment
SECTION 6 OPERATIONAL PROCEDURES
6.1 GENERAL
6.2 WORK AREAS
6.2.1 Limitations
6.2.2 Access
6.2.3 Approaching the jet operator
6.3 PERSONAL PROTECTIVE EQUIPMENT (PPE)
6.4 OPERATIONS
6.4.1 Commencement
6.4.2 Confined space working
6.4.3 Adjustments
6.4.4 Equipment malfunction
6.4.5 Reaction force
6.4.6 Effect of line pulses
6.4.7 Hose assemblies
6.4.8 Hose protection
6.4.9 Improper use
6.4.10 Operator positioning
6.4.11 Work stoppage
6.4.12 Work surface
6.4.13 Side protection
6.4.14 Corrosive materials
6.4.15 Additives
6.5 PRESSURIZING SYSTEMS
6.6 OPERATING PERSONNEL
6.6.1 Single-person operation
6.6.2 Multiple-person operations
6.6.3 Job rotation
6.6.4 Team leader
6.6.5 Communications
6.6.6 Fitness
6.7 HAND GUN OPERATIONS
6.8 LANCING AND PIPE CLEANING
6.8.1 Control
6.8.2 Retrojets
6.8.3 Clearance
6.8.4 Pressurization
6.8.5 End identification
6.8.6 Nozzle
SECTION 7 OPERATIONAL AND TRAINING RECOMMENDATION FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS
7.1 QUALIFIED OPERATORS
7.2 TRAINING
7.3 REFRESHER TRAINING
SECTION 8 PERMANENT CLEANING AREAS
8.1 GENERAL
8.2 ENCLOSURE
8.3 ACCESS
8.4 HAZARDS
8.5 ELECTRICAL HAZARDS
8.6 WASTE COLLECTION
SECTION 9 INCIDENT AND ACCIDENT REPORTING FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS
9.1 REPORTING
9.2 PERSONAL INJURIES
9.3 MEDICAL RECOMMENDATION
9.4 IMMEDIATE FIRST AID
9.5 MEDICAL ALERT CARD
APPENDIX A - PRESSURE FLOW DIAGRAM
APPENDIX B - INSPECTION, CARE AND MAINTENANCE OF HOSE ASSEMBLIES
APPENDIX C - TYPICAL EXAMPLE OF A PRE-SERVICE AND OPERATIONAL CHECKLIST FOR PRESSURIZED WATER JET CLEANING
APPENDIX D - HAND SIGNALS
Previous versions
AS/NZS 4233.1:1999
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.