AS/NZS 2312:1994
Guide to the protection of iron and steel against exterior atmospheric corrosion
Gives general and specific information on coating systems for the short-, medium-, and long-term protection of structural steelwork. The following aspects are covered in detail: atmospheric environments, planning and design, surface preparation treatments, metallic and paint coatings, maintenance of coating systems, inspection and testing, and preparation of coating specifications. The Standard contains comprehensive details of modern paint systems, including properties and typical applications, and gives advice on the selection of appropriate coating systems.
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AS/NZS 2312:1994 GUIDE TO THE PROTECTION OF IRON AND STEEL AGAINST EXTERIOR ATMOSPHERIC CORROSION
PREFACE
CONTENTS
FOREWORD
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCED DOCUMENTS
1.3 DEFINITIONS
1.4 DESIGNATION OF PROTECTION SYSTEMS
SECTION 2 ATMOSPHERIC ENVIRONMENTS
2.1 GENERAL
2.2 ATMOSPHERIC CLASSIFICATIONS (APPLICABLE TO STEEL)
SECTION 3 CORROSION PROTECTION SYSTEMS
3.1 GENERAL
3.2 RECOMMENDED COATING SYSTEMS
SECTION 4 PLANNING AND DESIGN FOR CORROSION PROTECTION
4.1 GENERAL
4.2 PLANNING
4.3 DESIGN
4.3.1 General
4.3.2 Exposure environment
4.3.3 Materials of construction
4.3.4 Major design considerations
4.3.5 General design considerations
SECTION 5 SURFACE PREPARATION TREATMENTS
5.1 GENERAL
5.2 CLEANING WITH SOLVENTS OR ALKALINE SOLUTIONS
5.3 CLEANING AND PREPARATION USING ACID SOLUTIONS (NON-IMMERSION)
5.4 ABRASIVE BLAST CLEANING
5.5 PICKLING
5.6 PHOSPHATE CONVERSION COATINGS
5.7 FLAME CLEANING
5.8 POWER TOOL CLEANING
5.9 HAND TOOL CLEANING
5.10 THE REMOVALOF SOLUBLE SALTS
5.11 THE PROTECTION OF STEEL DURING EXTENDED FABRICATION
5.12 RUST CONVERSION
SECTION 6 METALLIC COATINGS FOR CORROSION PROTECTION
6.1 GENERAL
6.2 HOT-DIP GALVANIZED COATINGS
6.2.1 General
6.2.2 Bath sizes
6.2.3 Design for galvanizing
6.2.4 Galvanizing process
6.2.5 Application
6.2.6 Designations for galvanized coating systems
6.3 METAL SPRAY COATINGS
6.3.1 General
6.3.2 Application
6.3.3 Sealing
6.3.4 Composite metal spray / sealer / paint systems
6.3.5 Designations for metal sprayed and composite coating systems
6.4 ELECTROPLATED COATINGS
6.5 THE USE OF ROOFING AND CLADDING MATERIALS
SECTION 7 COATING SYSTEMS FOR CORROSION PROTECTION
7.1 GENERAL
7.2 DESIGN CONSIDERATIONS
7.3 COATING SYSTEM DETAILS
7.4 SELECTION OFCOLOUR
7.5 HEAT-RESISTING COATINGS
7.6 POWDER COATINGS
7.7 PAINTING STAINLESS STEEL
SECTION 8 PAINTING AND PAINT APPLICATION METHODS
8.1 GENERAL
8.2 TYPE OF PAINT
8.2.1 General
8.2.2 Mixing and thinning
8.3 TYPE AND CONDITION OF THE SUBSTRATE
8.4 ATMOSPHERIC CONDITIONS
8.5 SEQUENCE OF OPERATIONS
8.6 METHODS OF APPLICATION
8.6.1 Spray methods
8.6.2 Brush application
8.6.3 Roller application
8.7 STANDARD OF WORKMANSHIP
8.8 TIME REQUIREMENTS
8.8.1 Cleaned surfaces
8.8.2 Period between coats
8.8.3 Effects of delays during painting
8.8.4 Drying time before handling
8.9 PAINT SPREADING RATE AND THICKNESS
8.10 PAINT STORAGE
8.10.1 General
8.10.2 Shelf life
8.10.3 Pot life
8.10.4 Straining
SECTION 9 WRAPPING TAPES FOR CORROSION PROTECTION
9.1 GENERAL
9.2 TAPE SYSTEMS
SECTION 10 MAINTENANCE OF PROTECTIVE COATING SYSTEMS
10.1 GENERAL
10.2 CRITERIA FOR ASSESSING WHEN TO PAINT OR REPAIR
10.3 PRETREATMENT BEFORE REPAINTING
10.3.1 General
10.3.2 Condition of existing coating system
10.3.3 Surface contamination
10.3.4 Environmental protection
10.3.5 Methods
10.4 REPAINTING
10.4.1 General
10.4.2 Procedure
10.4.3 Records
10.5 REPAIRS AND REPAINTING OF WELDED STRUCTURES
SECTION 11 INSPECTION AND TESTING
11.1 SCOPE
11.2 AUTHORITY
11.3 PRELIMINARY DISCUSSIONS
11.4 DUTIES OF INSPECTORS
11.4.1 Inspection of paint coatings
11.4.2 Inspection of metallic coatings
11.5 FINAL INSPECTION
11.6 RECORDS AND INSPECTION REPORT
11.7 GUIDANCE ON THE USE OF THICKNESS GAUGES
11.7.1 Dry film thickness gauges - non-destructive
11.7.2 Dry film thickness gauges - destructive
SECTION 12 PREPARATION OF COATING SPECIFICATIONS
12.1 GENERAL
12.2 CONTENT OF A SPECIFICATION
12.2.1 Scope of work
12.2.2 Surface preparation
12.2.3 Coating system
12.2.4 Coating materials - detailed stipulations
12.2.5 Application of coatings
12.2.6 Transport arrangements
12.2.7 Repair of welds and damaged areas
12.2.8 Inspection procedure requirements
12.2.9 Warranties
SECTION 13 HEALTH AND SAFETY
13.1 GENERAL
13.2 THE PAINTED SURFACE
13.3 FLAMMABILITY
13.4 EYE PROTECTION
13.5 RESPIRATORS
13.6 NOISE
13.7 HANDLING
13.8 WORKING IN A CONFINED SPACE
13.9 SURFACE PREPARATION
13.10 APPLICATION OF PAINT
13.11 STORAGE OF PAINT
13.12 WELDING
13.13 BURNING OF PAINTED SURFACES
APPENDIX A - GUIDANCE ON THE USE OF THIS STANDARD
A1 GENERAL
A2 CHECK LIST FOR THE COATING OF NEW STRUCTURES
A3 CHECK LIST FOR THE MAINTENANCE PAINTING OF EXISTING STRUCTURES
A4 EXAMPLES OF THE USE OF THIS STANDARD
APPENDIX B - ADVICE ON ATMOSPHERIC CORROSION OF STEEL IN AUSTRALASIAN CLIMATES
APPENDIX C - DESCRIPTION OF PAINT TYPES
C1 SCOPE
APPENDIX D - ECONOMICS OF CORROSION PROTECTION
D1 GENERAL
D2 INITIAL COSTS AND ECONOMICS OF PROTECTIVE TREATMENTS
D2.1 Surface preparation
D2.2 Paint application
D2.3 Galvanizing
D2.4 Inspection
D2.5 Paint coverage
D3 ECONOMIC EVALUATION OF PROTECTIVE TREATMENTS
D3.1 General
D3.2 A simple method of economic evaluation
D3.3 Present-value method
D3.4 Equivalent-annual-cost method
D3.5 Final evaluation
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References
Filters for eye protectors - Filters for protection against ultraviolet radiation
Filters for eye protectors - Filters for protection against infra-red radiation
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AS/NZS 2312:1994 GUIDE TO THE PROTECTION OF IRON AND STEEL AGAINST EXTERIOR ATMOSPHERIC CORROSION
PREFACE
CONTENTS
FOREWORD
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCED DOCUMENTS
1.3 DEFINITIONS
1.4 DESIGNATION OF PROTECTION SYSTEMS
SECTION 2 ATMOSPHERIC ENVIRONMENTS
2.1 GENERAL
2.2 ATMOSPHERIC CLASSIFICATIONS (APPLICABLE TO STEEL)
SECTION 3 CORROSION PROTECTION SYSTEMS
3.1 GENERAL
3.2 RECOMMENDED COATING SYSTEMS
SECTION 4 PLANNING AND DESIGN FOR CORROSION PROTECTION
4.1 GENERAL
4.2 PLANNING
4.3 DESIGN
4.3.1 General
4.3.2 Exposure environment
4.3.3 Materials of construction
4.3.4 Major design considerations
4.3.5 General design considerations
SECTION 5 SURFACE PREPARATION TREATMENTS
5.1 GENERAL
5.2 CLEANING WITH SOLVENTS OR ALKALINE SOLUTIONS
5.3 CLEANING AND PREPARATION USING ACID SOLUTIONS (NON-IMMERSION)
5.4 ABRASIVE BLAST CLEANING
5.5 PICKLING
5.6 PHOSPHATE CONVERSION COATINGS
5.7 FLAME CLEANING
5.8 POWER TOOL CLEANING
5.9 HAND TOOL CLEANING
5.10 THE REMOVALOF SOLUBLE SALTS
5.11 THE PROTECTION OF STEEL DURING EXTENDED FABRICATION
5.12 RUST CONVERSION
SECTION 6 METALLIC COATINGS FOR CORROSION PROTECTION
6.1 GENERAL
6.2 HOT-DIP GALVANIZED COATINGS
6.2.1 General
6.2.2 Bath sizes
6.2.3 Design for galvanizing
6.2.4 Galvanizing process
6.2.5 Application
6.2.6 Designations for galvanized coating systems
6.3 METAL SPRAY COATINGS
6.3.1 General
6.3.2 Application
6.3.3 Sealing
6.3.4 Composite metal spray / sealer / paint systems
6.3.5 Designations for metal sprayed and composite coating systems
6.4 ELECTROPLATED COATINGS
6.5 THE USE OF ROOFING AND CLADDING MATERIALS
SECTION 7 COATING SYSTEMS FOR CORROSION PROTECTION
7.1 GENERAL
7.2 DESIGN CONSIDERATIONS
7.3 COATING SYSTEM DETAILS
7.4 SELECTION OFCOLOUR
7.5 HEAT-RESISTING COATINGS
7.6 POWDER COATINGS
7.7 PAINTING STAINLESS STEEL
SECTION 8 PAINTING AND PAINT APPLICATION METHODS
8.1 GENERAL
8.2 TYPE OF PAINT
8.2.1 General
8.2.2 Mixing and thinning
8.3 TYPE AND CONDITION OF THE SUBSTRATE
8.4 ATMOSPHERIC CONDITIONS
8.5 SEQUENCE OF OPERATIONS
8.6 METHODS OF APPLICATION
8.6.1 Spray methods
8.6.2 Brush application
8.6.3 Roller application
8.7 STANDARD OF WORKMANSHIP
8.8 TIME REQUIREMENTS
8.8.1 Cleaned surfaces
8.8.2 Period between coats
8.8.3 Effects of delays during painting
8.8.4 Drying time before handling
8.9 PAINT SPREADING RATE AND THICKNESS
8.10 PAINT STORAGE
8.10.1 General
8.10.2 Shelf life
8.10.3 Pot life
8.10.4 Straining
SECTION 9 WRAPPING TAPES FOR CORROSION PROTECTION
9.1 GENERAL
9.2 TAPE SYSTEMS
SECTION 10 MAINTENANCE OF PROTECTIVE COATING SYSTEMS
10.1 GENERAL
10.2 CRITERIA FOR ASSESSING WHEN TO PAINT OR REPAIR
10.3 PRETREATMENT BEFORE REPAINTING
10.3.1 General
10.3.2 Condition of existing coating system
10.3.3 Surface contamination
10.3.4 Environmental protection
10.3.5 Methods
10.4 REPAINTING
10.4.1 General
10.4.2 Procedure
10.4.3 Records
10.5 REPAIRS AND REPAINTING OF WELDED STRUCTURES
SECTION 11 INSPECTION AND TESTING
11.1 SCOPE
11.2 AUTHORITY
11.3 PRELIMINARY DISCUSSIONS
11.4 DUTIES OF INSPECTORS
11.4.1 Inspection of paint coatings
11.4.2 Inspection of metallic coatings
11.5 FINAL INSPECTION
11.6 RECORDS AND INSPECTION REPORT
11.7 GUIDANCE ON THE USE OF THICKNESS GAUGES
11.7.1 Dry film thickness gauges - non-destructive
11.7.2 Dry film thickness gauges - destructive
SECTION 12 PREPARATION OF COATING SPECIFICATIONS
12.1 GENERAL
12.2 CONTENT OF A SPECIFICATION
12.2.1 Scope of work
12.2.2 Surface preparation
12.2.3 Coating system
12.2.4 Coating materials - detailed stipulations
12.2.5 Application of coatings
12.2.6 Transport arrangements
12.2.7 Repair of welds and damaged areas
12.2.8 Inspection procedure requirements
12.2.9 Warranties
SECTION 13 HEALTH AND SAFETY
13.1 GENERAL
13.2 THE PAINTED SURFACE
13.3 FLAMMABILITY
13.4 EYE PROTECTION
13.5 RESPIRATORS
13.6 NOISE
13.7 HANDLING
13.8 WORKING IN A CONFINED SPACE
13.9 SURFACE PREPARATION
13.10 APPLICATION OF PAINT
13.11 STORAGE OF PAINT
13.12 WELDING
13.13 BURNING OF PAINTED SURFACES
APPENDIX A - GUIDANCE ON THE USE OF THIS STANDARD
A1 GENERAL
A2 CHECK LIST FOR THE COATING OF NEW STRUCTURES
A3 CHECK LIST FOR THE MAINTENANCE PAINTING OF EXISTING STRUCTURES
A4 EXAMPLES OF THE USE OF THIS STANDARD
APPENDIX B - ADVICE ON ATMOSPHERIC CORROSION OF STEEL IN AUSTRALASIAN CLIMATES
APPENDIX C - DESCRIPTION OF PAINT TYPES
C1 SCOPE
APPENDIX D - ECONOMICS OF CORROSION PROTECTION
D1 GENERAL
D2 INITIAL COSTS AND ECONOMICS OF PROTECTIVE TREATMENTS
D2.1 Surface preparation
D2.2 Paint application
D2.3 Galvanizing
D2.4 Inspection
D2.5 Paint coverage
D3 ECONOMIC EVALUATION OF PROTECTIVE TREATMENTS
D3.1 General
D3.2 A simple method of economic evaluation
D3.3 Present-value method
D3.4 Equivalent-annual-cost method
D3.5 Final evaluation
Previous versions
AS/NZS 2312:1994
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.