AS/NZS 4680:1999
Hot-dip galvanized (zinc) coatings on fabricated ferrous articles
Specifies requirements and tests for hot-dip zinc coatings on fabricated ferrous articles including structural steel, steel sheet fabrications, assembled steel products, fabricated tubes, fabricated wire work, steel forgings and stampings, ferrous castings and nails and other small components. Appendices give advice on the design of articles to be galvanized, on the transport and storage of galvanized articles and on general factors affecting the corrosion of the galvanized coating.
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AS/NZS 4680:1999 HOT-DIP GALVANIZED (ZINC) COATINGS ON FABRICATED FERROUS ARTICLES
PREFACE
CONTENTS
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 Coating mass
3.2 Coating mass, average
3.3 Coating mass, local
3.4 Coating thickness
3.5 Coating thickness, average
3.6 Coating thickness, local
3.7 Galvanizer
3.8 Hot-dip galvanized coating
3.9 Hot-dip galvanizing
3.10 Reference area
3.11 Significant surface
4 DESIGN REQUIREMENTS
5 BASIS METAL
6 GALVANIZING PROCESS
6.1 Pretreatment
6.2 Bath composition
6.3 Threaded components
7 APPEARANCE AND FREEDOM FROM DEFECTS
8 COATING MASS AND THICKNESS
8.1 Coating mass
8.2 Coating thickness
9 ADHERENCE OF COATING
APPENDIX A - PURCHASING GUIDELINES
A1 GENERAL
A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
APPENDIX B - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
B1 SCOPE
B2 STATISTICAL SAMPLING
B3 PRODUCT CERTIFICATION
B4 SUPPLIER'S QUALITY SYSTEM
B5 OTHER MEANS OF ASSESSMENT
APPENDIX C - RECOMMENDED PROCEDURES FOR THE DESIGN AND PREPARATION OF ARTICLES FOR GALVANIZING
C1 SCOPE
C2 SIZE AND SHAPE
C3 DIMENSIONAL STABILITY
C4 OVERLAPPING OR CONTACTING SURFACES
C5 WELDING
C6 VENTING AND DRAINING
C6.1 General
C6.2 Hollow sections
C7 ASSEMBLIES
C8 MOVABLE PARTS
C9 LABELS AND MARKINGS
C10 HANDLING
C11 CASTINGS
APPENDIX D - PROPERTIES OF THE STEEL TO BE COATED, WHICH CAN AFFECT OR BE AFFECTED BY HOT-DIP GALVANIZING
D1 BASIS METAL
D1.1 Composition
D1.2 Surface condition
D1.3 The influence of the steel surface on the hot-dip galvanized coating thickness
D1.4 Stresses in the basis metal
D2 LARGE OBJECTS OR THICK STEELS
D3 HOT-DIP GALVANIZING PRACTICE
APPENDIX E - RENOVATION OF DAMAGED OR UNCOATED AREAS
E1 EXTENT OF REPAIRABLE DAMAGED OR UNCOATED AREAS
E2 REPAIR REQUIREMENTS
APPENDIX F - TRANSPORT AND STORAGE OF GALVANIZED ARTICLES
APPENDIX G - DETERMINATION OF COATING MASS AND LOCAL THICKNESS
G1 GENERAL
G2 GRAVIMETRIC METHOD
G2.1 Method
G2.2 Calculation of coating mass
G3 VOLUMETRIC METHOD
G3.1 Method
G3.2 Calculation of coating mass
G4 MASS-ON-MASS METHOD
G5 MAGNETIC, MAGNETIC INDUCTION AND EDDY CURRENT METHODS FOR LOCAL THICKNESS
G5.1 General
G5.2 Calculation of coating mass
G6 TEST REPORT
APPENDIX H - GENERAL INFORMATION ON FACTORS THAT AFFECT THE CORROSION OF GALVANIZED STEEL
H1 SCOPE
H2 EXTERNAL ATMOSPHERIC CORROSIVITY FACTORS
H3 LOCAL ENVIRONMENT EFFECTS
H4 SEAWATER IMMERSION
APPENDIX I - INFORMATION ON THE USE OF SWEEP (BRUSH) BLAST CLEANING OF GALVANIZED STEEL PRIOR TO PAINTING
I1 GENERAL
I2 PROCEDURE
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References
Safety in laboratories - General
Guide to the protection of iron and steel against exterior atmospheric corrosion
Hot-dip galvanized (zinc) coatings on ferrous hollow sections, applied by a continuous or a specialized process
Quality management and quality assurance standards - Guidelines for selection and use
Quality management and quality system elements - Guidelines
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AS/NZS 4680:1999 HOT-DIP GALVANIZED (ZINC) COATINGS ON FABRICATED FERROUS ARTICLES
PREFACE
CONTENTS
1 SCOPE
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 Coating mass
3.2 Coating mass, average
3.3 Coating mass, local
3.4 Coating thickness
3.5 Coating thickness, average
3.6 Coating thickness, local
3.7 Galvanizer
3.8 Hot-dip galvanized coating
3.9 Hot-dip galvanizing
3.10 Reference area
3.11 Significant surface
4 DESIGN REQUIREMENTS
5 BASIS METAL
6 GALVANIZING PROCESS
6.1 Pretreatment
6.2 Bath composition
6.3 Threaded components
7 APPEARANCE AND FREEDOM FROM DEFECTS
8 COATING MASS AND THICKNESS
8.1 Coating mass
8.2 Coating thickness
9 ADHERENCE OF COATING
APPENDIX A - PURCHASING GUIDELINES
A1 GENERAL
A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
APPENDIX B - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
B1 SCOPE
B2 STATISTICAL SAMPLING
B3 PRODUCT CERTIFICATION
B4 SUPPLIER'S QUALITY SYSTEM
B5 OTHER MEANS OF ASSESSMENT
APPENDIX C - RECOMMENDED PROCEDURES FOR THE DESIGN AND PREPARATION OF ARTICLES FOR GALVANIZING
C1 SCOPE
C2 SIZE AND SHAPE
C3 DIMENSIONAL STABILITY
C4 OVERLAPPING OR CONTACTING SURFACES
C5 WELDING
C6 VENTING AND DRAINING
C6.1 General
C6.2 Hollow sections
C7 ASSEMBLIES
C8 MOVABLE PARTS
C9 LABELS AND MARKINGS
C10 HANDLING
C11 CASTINGS
APPENDIX D - PROPERTIES OF THE STEEL TO BE COATED, WHICH CAN AFFECT OR BE AFFECTED BY HOT-DIP GALVANIZING
D1 BASIS METAL
D1.1 Composition
D1.2 Surface condition
D1.3 The influence of the steel surface on the hot-dip galvanized coating thickness
D1.4 Stresses in the basis metal
D2 LARGE OBJECTS OR THICK STEELS
D3 HOT-DIP GALVANIZING PRACTICE
APPENDIX E - RENOVATION OF DAMAGED OR UNCOATED AREAS
E1 EXTENT OF REPAIRABLE DAMAGED OR UNCOATED AREAS
E2 REPAIR REQUIREMENTS
APPENDIX F - TRANSPORT AND STORAGE OF GALVANIZED ARTICLES
APPENDIX G - DETERMINATION OF COATING MASS AND LOCAL THICKNESS
G1 GENERAL
G2 GRAVIMETRIC METHOD
G2.1 Method
G2.2 Calculation of coating mass
G3 VOLUMETRIC METHOD
G3.1 Method
G3.2 Calculation of coating mass
G4 MASS-ON-MASS METHOD
G5 MAGNETIC, MAGNETIC INDUCTION AND EDDY CURRENT METHODS FOR LOCAL THICKNESS
G5.1 General
G5.2 Calculation of coating mass
G6 TEST REPORT
APPENDIX H - GENERAL INFORMATION ON FACTORS THAT AFFECT THE CORROSION OF GALVANIZED STEEL
H1 SCOPE
H2 EXTERNAL ATMOSPHERIC CORROSIVITY FACTORS
H3 LOCAL ENVIRONMENT EFFECTS
H4 SEAWATER IMMERSION
APPENDIX I - INFORMATION ON THE USE OF SWEEP (BRUSH) BLAST CLEANING OF GALVANIZED STEEL PRIOR TO PAINTING
I1 GENERAL
I2 PROCEDURE
AS/NZS 4680:1999
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.