AS/NZS 2728:1997

1 - AS/NZS 2728:1997 PREFINISHED/PREPAINTED SHEET METAL PRODUCTS FOR INTERIOR/EXTERIOR BUILDING APPLICATIONS-PERFORMANCE REQUIREM
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
7 - 1.3 DEFINITIONS
7 - 1.3.1 Metal product
7 - 1.3.2 Organic coating
7 - 1.3.3 Organic film/ metal laminate product
7 - 1.3.4 Prefinished metal product
8 - 1.3.5 Prepainted metal product
8 - 1.4 PRODUCT TYPES
8 - 1.5 PRODUCT FINISHES
9 - SECTION 2 PERFORMANCE REQUIREMENTS FOR PREFINISHED METAL PRODUCTS
9 - 2.1 SCOPE
9 - 2.2 APPEARANCE
9 - 2.2.1 General
9 - 2.2.2 Colour
9 - 2.3 SPECULAR GLOSS (PRODUCT SPECIFICATION)
9 - 2.4 DRY FILM THICKNESS
11 - 2.5 REVERSE IMPACT RESISTANCE OF PREPAINTED PRODUCTS
11 - 2.6 ADHESION
11 - 2.6.1 T-bend test for prepainted sheet and strip
11 - 2.6.2 Ball test for organic film/metal laminate sheet and strip
11 - 2.7 SCRATCH RESISTANCE (Applicable to product types 2, 3, 4, 5 and 6)
11 - 2.8 DURABILITY OF THE ORGANIC FILM (Applicable to product types 3, 4, 5 and 6)
13 - 2.9 HUMIDITY RESISTANCE
13 - 2.10 SALT SPRAY RESISTANCE (Applicable to product types 2(b), 3, 4, 5 and 6)
13 - 2.11 PENCIL HARDNESS (Applicable to prepainted products of all types)
14 - APPENDIX A - PURCHASING GUIDELINES
14 - A1 GENERAL
14 - A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
15 - APPENDIX B - ATMOSPHERIC ENVIRONMENTS
15 - B1 GENERAL
16 - B2 ATMOSPHERIC CLASSIFICATIONS
18 - APPENDIX C - SELECTION AND PREPARATION OF TEST PANELS
18 - C1 TEST PANELS FOR DURABILITY AND SALT SPRAY RESISTANCE TESTS
18 - C2 TEST PANELS FOR THICKNESS TESTS
19 - APPENDIX D - ADVICE ON SURFACE CONDITION OF METALLIC SUBSTRATES FOR OPTIMUM PERFORMANCE OF ORGANIC COATING
19 - D1 GENERAL
19 - D2 ALUMINIUM AND ALUMINIUM ALLOYS
19 - D3 STEEL
20 - APPENDIX E - REVERSE IMPACT TEST
20 - E1 SCOPE
20 - E2 PRINCIPLE
20 - E3 APPARATUS
20 - E4 PREPARATION OF TEST PIECE
20 - E5 PROCEDURE
20 - E6 TEST REPORT
21 - APPENDIX F - T-BEND ADHESION TEST
21 - F1 SCOPE
21 - F2 PRINCIPLE
21 - F3 APPARATUS
21 - F4 PREPARATION OF TEST PIECES
21 - F5 PROCEDURE
22 - F6 TEST REPORT
24 - APPENDIX G - BALL ADHESION TEST FOR ORGANIC FILM/METAL LAMINATE
24 - G1 SCOPE
24 - G2 PRINCIPLE
24 - G3 APPARATUS
24 - G4 PREPARATION OF TEST PANELS
24 - G5 PROCEDURE
26 - G6 TEST REPORT
27 - APPENDIX H - PROCEDURES FOR TESTING DURABILITY AND SALT SPRAY RESISTANCE
27 - H1 SCOPE
27 - H2 DURABILITY TEST
28 - H3 SALT SPRAY TEST
28 - H4 TEST REPORT
29 - APPENDIX I - NEW ZEALAND AND AUSTRALIAN CORROSION TEST SITES
32 - APPENDIX J - ADVICE ON WEATHERING PERFORMANCE OF FABRICATED PREPAINTED AND ORGANIC FILM/METAL LAMINATE PRODUCTS
32 - J1 GENERAL
32 - J2 LOSS OF GLOSS
32 - J3 CHALKING
32 - J4 CHECKING
32 - J5 COLOUR FADING
33 - J6 EROSION OF ORGANIC COATINGS
34 - APPENDIX K - STORAGE AND HANDLING OF PRODUCTS

Specifies performance requirements for prepainted metal sheet and strip and organic file/metal laminate products in sheet and strip form that are coated on one or both sides, and that are intended for fabrication into products for use in the construction or finishing of buildings. Six product types and three surface finishes are specified. Appendices contain test methods and include atmospheric classifications and data on Australian and New Zealand corrosion test sites.

This Standard specifies performance requirements for prepainted and organic film/metal laminate products in sheet and strip form that are coated on one or both sides with an organic film, and that are intended for fabrication into products for use in the construction or finishing of buildings.The Standard classifies prefinished/prepainted metal products into six types according to their performance, in respect to durability and aesthetics, in environments of varying severity. It specifies three levels of coating finish.NOTES:1 Advice and recommendations on information to be supplied by the purchaser at the time of enquiry or order are contained in the purchasing guidelines set out in Appendix A.2 The performance of a coating will be dependent on the corrosion resistance of the substrate in the particular environment and on climatic influences that directly affect the coating. Such influences include solar radiation and the presence of water vapour (see Appendix B).

First published in Australia as AS 2728-1984.
Jointly revised and designated AS/NZS 2728:1997.