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AS/NZS 2312:2002

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Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings

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Superseded date

29-03-2023

Published date

28-11-2002

Publisher

Standards Australia

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Provides guidelines for the selection and specification of coating systems for the short, medium and long term protection of structural steel work against interior and exterior atmospheric, and non-atmospheric corrosive environments. The following aspects are covered in detail: Atmopspheric environments, planning and design, surface preparation treatments, metallic and paint coatings, maintenance of coating systems, inspection and testing, and preparation of coating specifications. Contains comprehensive details of modern paint systems, including properties and typical applications.

This Standard provides guidelines for the selection and specification of coating systems for the protection of structural steel work against interior and exterior atmospheric environments. The Standard specifically covers the following subjects: (a) Guidance on the use of the Standard. (b) Classification of atmospheric and non-atmospheric environments. (c) Planning and design for corrosion protection.(d) Surface preparation treatments. (e) Metallic coatings. (f) Paint coating systems and methods of paint application. (g) Factors influencing coating selection. (h) Powder coatings and wrapping tapes for corrosion protection. (i) Maintenance of protective coating systems. (j) Inspection and testing. (k) Guidance on the preparation of coating specifications. (l) Health and safety requirements. (m) Economics of corrosion protection. This Standard covers the protection of structural steel work against interior and exterior atmospheric corrosion and also the protection of items of equipment manufactured from steel which are exposed to exterior atmospheric conditions. The Standard also covers, to a limited extent, the protection of steel work which is completely immersed in water or buried in soil, or which is subject to atmospheres severely contaminated with acidic or other chemical vapours such as may be encountered in some chemical manufacturing plants, and also the protection of ships. The systems recommended in this Standard can also be used on internal structures where wet or damp areas exist. It is necessary to understand that the systems recommended have been selected for guidance only and that life expectancy to first major maintenance is an estimate only. In practice, some minor maintenance may be required. Because particular coating formulations and micro-climates vary, the user of this Standard is advised to confirm with the manufacturer or supplier, that the selected system is suitable for the task and can be reasonably expected to protect the steel for a specified time.

Committee	MT-014
DocumentType	Standard
ISBN	0 7337 4887 2
Pages	132
PublisherName	Standards Australia
Status	Superseded
SupersededBy	AS/NZS 2312.1:2014 AS 2312.1:2014 AS/NZS 2312.2:2014
Supersedes	DR 00258 AS/NZS 2312:1994
UnderRevision	DR AS/NZS 2312.1

First published as part of MA 1.5-1967.Revised and redesignated in part as AS 2312-1980.Second edition 1984.Jointly revised and designated as AS/NZS 2312:1994.Fourth edition 2002. First published as part of MA 1.5-1967. Revised and redesignated in part as AS 2312-1980. Second edition 1984. Jointly revised and designated as AS/NZS 2312:1994. Fourth edition 2002.

AS 1445-1986	Hot-dipped zinc-coated or aluminium/zinc-coated steel sheet - 76 mm pitch corrugated
AS/NZS 3679.1:1996	Structural steel Hot-rolled bars and sections
AS 1580.481.0-2003	Paints and related materials - Methods of test Coatings - Guide to assessing paint systems exposed to weathering conditions
AS/NZS 3000:2000	Electrical installations (known as the Australian/New Zealand Wiring Rules)
AS 4750(INT)-2000	Electrogalvanized (zinc) coatings on ferrous hollow sections
AS/NZS 3750.11:1996	Paints for steel structures - Chlorinated rubber - High-build and gloss
AS/NZS 1269.3:1998	Occupational noise management - Hearing protector program
AS/NZS 3750.14:1997	Paints for steel structures High-build epoxy (two-pack)
AS 3978-2003	Non-destructive testing - Visual inspection of metal products and components (Reconfirmed 2022)
AS/NZS 1338.3:1992	Filters for eye protectors Filters for protection against infra-red radiation
AS/NZS 4792:1999	Hot-dip galvanized (zinc) coatings on ferrous hollow sections, applied by a continuous or a specialized process
AS 1580.408.2-2004	Paints and related materials - Methods of test Adhesion - Knife test (Reconfirmed 2019)
AS 3894.2-2002	Site testing of protective coatings Non-conductive coatings - Continuity testing - Wet sponge method
AS 1627.1-1989	Metal finishing - Preparation and pretreatment of surfaces - Cleaning using liquid solvents and alkaline solutions
AS/NZS 1338.1:1992	Filters for eye protectors Filters for protection against radiation generated in welding and allied operations
AS/NZS 3750.13:1997	Paints for steel structures Epoxy primer (two-pack)
AS 3894.10-2002	Site testing of protective coatings Inspection report - Daily surface and ambient conditions (Reconfirmed 2019)
AS 3894.6-2002	Site testing of protective coatings Determination of residual contaminants (Reconfirmed 2013)
AS 3894.1-2002	Site testing of protective coatings Non-conductive coatings - Continuity testing - High voltage (brush) method (Reconfirmed 2013)
AS/NZS 3750.10:1994	Paints for steel structures Full gloss epoxy (two-pack)
AS 4036-2006	Corrosion of metals - Dissimilar metals in contact in seawater
AS 2832.2-1991	Cathodic protection of metals - Compact buried structures
AS 1318-1985	Use of colour for the marking of physical hazards and the identification of certain equipment in industry (known as the SAA Industrial Safety Colour Code)
AS 1627.4-2002	Metal finishing - Preparation and pretreatment of surfaces - Abrasive blast cleaning
AS 2832.4-1994	Cathodic protection of metals - Internal surfaces
AS 1580.481.0-1991	Paints and related materials - Methods of test Coatings - Guide to assessing paint systems exposed to weathering conditions
AS/NZS 1336:1997	Recommended practices for occupational eye protection
AS 1789-2003	Electroplated zinc (electrogalvanized) coatings on ferrous articles (batch process) (Reconfirmed 2017)
HB 90.3-2000	The Construction Industry Guide to ISO 9001:2000
AS/NZS 2041:1998	Buried corrugated metal structures
AS/NZS 2310:2002	Glossary of paint and painting terms (Reconfirmed 2016)
AS 3894.11-2002	Site testing of protective coatings Equipment report (Reconfirmed 2019)
AS 1397-1993	Steel sheet and strip - Hot-dipped zinc-coated or aluminium/zinc-coated
AS 3750.1-1994	Paints for steel structures - Epoxy mastic (two-pack) - For rusted steel
AS/NZS 4506:1998	Metal finishing - Thermoset powder coatings
AS 3894.12-2002	Site testing of protective coatings Inspection report - Coating (Reconfirmed 2019)
AS/NZS 3750.16:1998	Paints for steel structures Waterborne primer and paint for galvanized, zinc/aluminium alloy-coated and zinc-primed steel (Reconfirmed 2013)
AS 1580.102.1-2002	Paints and related materials - Methods of test Sampling procedure
AS/NZS 4020:2005	Testing of products for use in contact with drinking water
AS/NZS 1594:2002	Hot-rolled steel flat products (Reconfirmed 2016)
AS 4751(INT)-2000	Electrogalvanized (zinc) coatings on ferrous open sections
AS 1897-1976	Electroplated coatings on threaded components (metric coarse series)
AS/NZS 1338.2:1992	Filters for eye protectors Filters for protection against ultraviolet radiation
AS/NZS 3678:1996	Structural steel - Hot-rolled plates, floorplates and slabs
AS 2700-1996	Colour Standards for general purposes - Swatches
AS 4750-2003	Electrogalvanized (zinc) coatings on ferrous hollow and open sections (Reconfirmed 2017)
AS/NZS 2728:1997	Prefinished/prepainted sheet metal products for interior/exterior building applications - Performance requirements
AS/NZS 4020:2002	Testing of products for use in contact with drinking water
AS 1580.408.4-1993	Paints and related materials - Methods of test Adhesion (cross-cut)
AS 4361.1-1995	Guide to lead paint management - Industrial applications
AS/NZS 1716:1994	Respiratory protective devices
AS 1627.5-2003	Metal finishing - Preparation and pretreatment of surfaces Pickling (Reconfirmed 2017)
AS 1627.9-2002	Metal finishing - Preparation and pretreatment of surfaces Pictorial surface preparation standards for painting steel surfaces (Reconfirmed 2017)
AS/NZS 2311:2000	Guide to the painting of buildings
AS 1627.5-1994	Metal finishing - Preparation and pretreatment of surfaces - Pickling, descaling and oxide removal
AS/NZS 3750.12:1996	Paints for steel structures Alkyd/micaceous iron oxide (Reconfirmed 2013)
AS/NZS 2832.1:1998	Cathodic protection of metals - Pipes and cables
AS 1397-2001	Steel sheet and strip - Hot-dipped zinc-coated or aluminium/zinc-coated
AS/NZS 3750.5:1994	Paints for steel structures - Acrylic full gloss (two-pack)
AS/NZS 3750.6:1995	Paints for steel structures - Full gloss polyurethane (two-pack)
AS/NZS 2865:2001	Safe working in a confined space
AS 4036-1992	Corrosion of metal - Dissimilar metals in contact in seawater
AS/NZS 4680:2006	Hot-dip galvanized (zinc) coatings on fabricated ferrous articles (Reconfirmed 2017)
AS/NZS 3750.15:1998	Paints for steel structures Inorganic zinc silicate paint (Reconfirmed 2013)
AS 1214-1983	Hot-dip galvanized coatings on threaded fasteners (ISO metric coarse thread series)
AS 1789-1984	Electroplated coatings - Zinc on iron or steel
AS 1319-1994	Safety signs for the occupational environment (Reconfirmed 2018)
AS/NZS 4680:1999	Hot-dip galvanized (zinc) coatings on fabricated ferrous articles
AS 4361.2-1998	Guide to lead paint management Residential and commercial buildings
AS 1580.408.4-2004	Paints and related materials - Methods of test Adhesion (crosscut) (Reconfirmed 2019)
AS 1345-1995	Identification of the contents of pipes, conduits and ducts (Reconfirmed 2018)
AS 1791-1986	Chromate conversion coatings - Zinc and cadmium
AS 1627.6-2003	Metal finishing - Preparation and pretreatment of surfaces Chemical conversion treatment of metals (Reconfirmed 2017)
AS 3894.5-2002	Site testing of protective coatings Determination of surface profile
AS/NZS 4791:1999	Hot-dip galvanized (zinc) coatings on ferrous open sections, applied by an in-line process
AS 3894.3-2002	Site testing of protective coatings Determination of dry film thickness (Reconfirmed 2013)
AS 4025.1-1992	Paints for equipment including ships Solvent-borne - Interior and exterior - Full gloss enamel
AS/NZS 1270:2002	Acoustics - Hearing protectors (Reconfirmed 2014)
AS/NZS 4792:2006	Hot-dip galvanized (zinc) coatings on ferrous hollow sections, applied by a continuous or a specialized process (Reconfirmed 2017)
AS/NZS 3750.17:1998	Paints for steel structures Etch primers (single pack and two-pack) (Reconfirmed 2013)
AS/NZS 1580.481.1.9:1998	Paints and related materials - Methods of test Coatings - Exposed to weathering - Degree of blistering (Reconfirmed 2013)
AS 1580.408.2-1993	Paints and related materials - Methods of test Adhesion - Knife test
AS/NZS 2728:2007	Prefinished/prepainted sheet metal products for interior/exterior building applications - Performance requirements
AS 1580.102.1-1992	Paints and related materials - Methods of test Sampling procedure
AS 1627.6-1994	Metal finishing - Preparation and pretreatment of surfaces - Chemical conversion treatment of metals
AS 2832.3-1992	Cathodic protection of metals - Fixed immersed structures
AS/NZS 1716:2003	Respiratory protective devices
AS/NZS 1269.3:2005	Occupational noise management Hearing protector program
AS/NZS 1715:1994	Selection, use and maintenance of respiratory protective devices
AS/NZS 3750.9:1994	Paints for steel structures - Organic zinc-rich primer
AS 3978-1991	Non-destructive testing - Visual inspection of metal products and components
AS/NZS 4791:2006	Hot-dip galvanized (zinc) coatings on ferrous open sections, applied by an in-line process (Reconfirmed 2017)
AS/NZS 1337:1992	Eye protectors for industrial applications
AS 3894.4-2002	Site testing of protective coatings Assessment of degree of cure
AS 1627.4-2005	Metal finishing - Preparation and pretreatment of surfaces Abrasive blast cleaning of steel (Reconfirmed 2017)
AS 2832.5-2002	Cathodic protection of metals - Steel in concrete structures
AS 4506-2005	Metal finishing - Thermoset powder coatings
AS 1627.0-1997	Metal finishing - Preparation and pretreatment of surfaces Method selection guide (Reconfirmed 2017)
AS 4089-1993	Priming paint for steel - Single component - General purpose
AS 4100-1998	Steel structures (Reconfirmed 2016)
AS 3750.2-1994	Paints for steel structures - Ultra high-build paint
AS/NZS 3679.2:1996	Structural steel - Welded I sections
AS 1627.1-2003	Metal finishing - Preparation and pretreatment of surfaces Removal of oil, grease and related contamination (Reconfirmed 2017)
AS 3600-2001	Concrete structures
AS 1627.2-2002	Metal finishing - Preparation and pretreatment of surfaces Power tool cleaning (Reconfirmed 2017)

AS 4848.1-2006	Application specifications for coating systems Single coat inorganic (ethyl) zinc silicate - Solvent-borne
AS/NZS 3750.8:1994	Paints for steel structures Vinyl paints - Primer, high-build and gloss (Reconfirmed 2013)
AS/NZS 2311:2009	Guide to the painting of buildings
AS/NZS 3750.9:1994	Paints for steel structures - Organic zinc-rich primer
AS 2309-2008	Durability of galvanized and electrogalvanized zinc coatings for the protection of steel in structural applications - Atmospheric
AS 3784.1-1990	Coatings for fire protection of building elements - Guide to selection and installation of sprayed mineral coatings
AS 2159-1995	Piling - Design and installation
AS 1627.0-1997	Metal finishing - Preparation and pretreatment of surfaces Method selection guide (Reconfirmed 2017)
AS/NZS 1580.457.1:1996	Paints and related materials - Methods of test Resistance to natural weathering (Reconfirmed 2013)
AS 4647-2005	Domestic diaphragm gas meters
AS 4025.2-1993	Paints for equipment including ships Solvent-borne - Interior and exterior - Undercoat
AS/NZS 4389:1996	Safety mesh
AS/NZS 3750.11:2009	Paints for steel structures Chlorinated rubber - High-build and gloss
AS 1406-2004	Electroplated coatings - Nickel and chromium on plastics for decorative applications (Reconfirmed 2017)
AS 2423-2002	Coated steel wire fencing products for terrestrial, aquatic and general use (Reconfirmed 2021)
AS 1725.3-2010	Chain link fabric fencing Tennis court fencing - Private/Residential (Reconfirmed 2020)
AS 4312-2008	Atmospheric corrosivity zones in Australia
AS 3750.2-1994	Paints for steel structures - Ultra high-build paint
AS 4997-2005	Guidelines for the design of maritime structures
AS/NZS 4600:2005	Cold-formed steel structures
AS 4312:2019	Atmospheric corrosivity zones in Australia
AS/NZS 3750.23:2008	Paints for steel structures Semi-gloss enamel - Solvent-borne (Reconfirmed 2021)
AS/NZS 3750.7:2009	Paints for steel structures Aluminium paint (Reconfirmed 2021)
AS 2159-2009	Piling - Design and installation
AS/NZS 3750.22:2008	Paints for steel structures Full gloss enamel - Solvent-borne (Reconfirmed 2021)
AS/NZS 2728:2013	Prefinished/prepainted sheet metal products for interior/exterior building applications - Performance requirements
AS/NZS 3750.6:2009	Paints for steel structures Full gloss polyurethane (two-pack) (Reconfirmed 2020)
AS 4506-2005	Metal finishing - Thermoset powder coatings
AS/NZS 3500.3:2003	Plumbing and drainage Stormwater drainage
AS/NZS 1892.1:1996	Portable ladders Metal
AS 4025.3-1993	Paints for equipment including ships Solvent-borne - Interior and exterior - Semi-gloss enamel
AS/NZS 4534:2006	Zinc and zinc/aluminium-alloy coatings on steel wire (Reconfirmed 2017)
AS 2067-1984	Switchgear assemblies and ancillary equipment for alternating voltages above 1 kV
AS/NZS 2041.1:2011	Buried corrugated metal structures Design methods
AS 3894.7-2002	Site testing of protective coatings Determination of surface temperature (Reconfirmed 2013)
AS/NZS 3750.11:1996	Paints for steel structures - Chlorinated rubber - High-build and gloss
AS/NZS 3750.9:2009	Paints for steel structures Organic zinc-rich primer (Reconfirmed 2019)
AS/NZS 3750.4:1994	Paints for steel structures Bitumen paint (Reconfirmed 2013)
AS 1725-2003	Chain-link fabric security fencing and gates
AS/NZS 3750.3:2008	Paints for steel structures Heat resisting - Exterior (Reconfirmed 2020)
AS 3700-2001	Masonry structures
AS 1725.4-2010	Chain link fabric fencing Cricket net fencing enclosures (Reconfirmed 2020)
AS/NZS 3750.3:1994	Paints for steel structures - Heat resisting - Exterior
AS 1725.2-2010	Chain link fabric fencing Tennis court fencing - Commercial (Reconfirmed 2020)
AS 2885.1-2007	Pipelines - Gas and liquid petroleum - Design and construction
AS 3581-1988	Mechanical aids for patient lifting and moving - Safety requirements
AS 4025.1-1992	Paints for equipment including ships Solvent-borne - Interior and exterior - Full gloss enamel
AS 1192-2004	Electroplated coatings - Nickel and chromium (Reconfirmed 2017)
AS 3894.3-2002	Site testing of protective coatings Determination of dry film thickness (Reconfirmed 2013)
AS 3750.10-2008	Paints for steel structures Full gloss epoxy (two-pack) (Reconfirmed 2019)
AS/NZS 3750.12:1996	Paints for steel structures Alkyd/micaceous iron oxide (Reconfirmed 2013)
AS/NZS 2728:2007	Prefinished/prepainted sheet metal products for interior/exterior building applications - Performance requirements
AS/NZS 3750.1:2008	Paints for steel structures Epoxy mastic (two-pack) - For rusted steel (Reconfirmed 2020)
AS 1789-2003	Electroplated zinc (electrogalvanized) coatings on ferrous articles (batch process) (Reconfirmed 2017)
AS/NZS 4680:2006	Hot-dip galvanized (zinc) coatings on fabricated ferrous articles (Reconfirmed 2017)
AS/NZS 3788:2006	Pressure equipment - In-service inspection (Reconfirmed 2017)
AS 1720.1-1997	Timber structures Design methods
AS/NZS 3750.5:2008	Paints for steel structures Acrylic full gloss (two-pack) (Reconfirmed 2020)
AS/NZS 4792:2006	Hot-dip galvanized (zinc) coatings on ferrous hollow sections, applied by a continuous or a specialized process (Reconfirmed 2017)
AS/NZS 7000:2010	Overhead line design - Detailed procedures
AS 1725.1-2010	Chain link fabric fencing Security fences and gates - General requirements (Reconfirmed 2020)
AS 1210-1997	Pressure vessels
AS/NZS 3750.7:1994	Paints for steel structures - Aluminium paint
AS 4750-2003	Electrogalvanized (zinc) coatings on ferrous hollow and open sections (Reconfirmed 2017)
AS/NZS 1576.5:1995	Scaffolding Prefabricated splitheads and trestles
AS/NZS 3750.20:2008	Paints for steel structures Anticorrosive metal primer - Solvent-borne - Lead and chromate free (Reconfirmed 2020)
AS 3750.1-1994	Paints for steel structures - Epoxy mastic (two-pack) - For rusted steel
AS 1562.1-1992	Design and installation of sheet roof and wall cladding Metal (Reconfirmed 2016)
AS/NZS 3750.21:2008	Paints for steel structures Undercoat - Solvent-borne (Reconfirmed 2021)
AS/NZS 2179.1:1994	Specifications for rainwater goods, accessories and fasteners Metal shape or sheet rainwater goods, and metal accessories and fasteners
AS/NZS 2785:2000	Suspended ceilings - Design and installation
AS/NZS 5131:2016	Structural steelwork - Fabrication and erection
AS 4285-2007	Skylights
AS/NZS 3750.5:1994	Paints for steel structures - Acrylic full gloss (two-pack)
AS/NZS 2041:1998	Buried corrugated metal structures
AS/NZS 3750.10:1994	Paints for steel structures Full gloss epoxy (two-pack)
AS/NZS 3750.2:2008	Paints for steel structures Ultra high-build paint (Reconfirmed 2020)
AS/NZS 3750.19:2008	Paints for steel structures Metal primer - General purpose (Reconfirmed 2020)
AS 2453-2004	Electroplated coatings - Chromium for engineering applications (Reconfirmed 2017)
AS 2885.1-2012	Pipelines - Gas and liquid petroleum Design and construction
AS 4089-1993	Priming paint for steel - Single component - General purpose
AS 1725.5-2010	Chain link fabric fencing Sports ground fencing - General requirements (Reconfirmed 2020)
AS 2159 SUPP 1-1996	Piling - Design and installation - Guidelines (Supplement to AS 2159 - 1995) (Reconfirmed 2018)
AS 1627.4-2005	Metal finishing - Preparation and pretreatment of surfaces Abrasive blast cleaning of steel (Reconfirmed 2017)
AS 4025.4-1994	Paints for equipment including ships Solvent-borne - Lead and chromate free - Anticorrosive metal primer
AS 2419.1-2005	Fire hydrant installations System design, installation and commissioning

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AS/NZS 2312:2002

Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings

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