Standard
UPDATE AVAILABLE
AS/NZS 2430.3.9:2004
[Superseded]Classification of hazardous areas, Part 3.9: Examples of area classification — Miscellaneous
Specifies guidance on the classification of areas associated with several finishing processes, fruit ripening rooms, several batch-type processes and ammonia systems. It includes specific examples of classification for the aforementioned areas. To be read in conjunction with AS/NZS 2430.1.
Published: 20/05/2004
Pages: 17
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Referenced documents
3 Definitions
4 Finishing processes
4.1 Scope
4.2 Classification of hazardous areas
4.2.1 Spray painting booths
4.2.1.1 Enclosed type booths complying with AS/NZS 4114.1
4.2.1.2 Open-fronted booths
4.2.1.3 Tunnel or production booths
4.2.2 Paint spraying and dipping
4.2.3 Drying and baking areas
4.2.4 Motor body workshops
4.2.5 Other areas
4.2.6 Powder coating
4.2.7 Continuous coating facilities
4.2.8 Glass reinforced plastics (GRP)
4.2.8.1 Fabrication
4.2.8.2 Classification of hazardous areas
5 Fruit ripening rooms
5.1 Scope
5.2 Classification of hazardous areas
6 Batch-type processes
6.1 Scope
6.2 Classification of hazardous areas
6.2.1 Vessel containing flammable liquid, up to 20L
6.2.1.1 Open vessel (see Figure 6.1)
6.2.1.2 Closed vessel with tight fitting lid during operation (see Figure 6.2)
6.2.2 Vessel containing flammable liquid, up to 5000 L
6.2.2.1 Open vessel (see Figure 6.3)
6.2.2.2 Closed vessel during operation with tight fitting lid (see Figure 6.4)
6.2.3 Dry-cleaning equipment (see Figure 6.5)
6.2.4 Solvent extraction (see Figure 6.6)
6.2.5 Solvent recovery by distillation (see Figure 6.7)
6.2.6 Degreasing/cleaning processes
6.2.7 Printing presses employing solvent-based inks
6.2.7.1 General
6.2.7.2 Classification of hazardous areas
7 Ammonia systems
7.1 Scope
7.2 Classification of hazardous areas—Anhydrous ammonia in adequately ventilated locations
7.2.1 Storage vessels
7.2.1.1 Internal volume
7.2.1.2 External area
7.2.2 Piping including valves, flanges
7.2.3 Filling or unloading points and the discharge point of relief valves
7.2.4 Pumps and compressors
7.2.5 Vaporizers
7.3 Classification of hazardous areas—Anhydrous ammonia in indoor locations
7.3.1 Adequately ventilated locations
7.3.2 Inadequately ventilated locations
7.3.3 Cool rooms, chillers and the like
7.4 Aqueous ammonia systems
7.4.1 General
7.4.2 Classification of hazardous areas in adequately ventilated locations
7.4.2.1 Closed containers
7.4.2.2 Other adequately ventilated areas
7.4.2.3 Indoor locations regarded as adequately ventilated locations
7.4.3 Classification of hazardous areas in inadequately ventilated locations
7.4.4 Other situations
Cited references in this standard
[Current]
Electrical apparatus for explosive gas atmospheres, Part 10: Classification of hazardous areas (IEC 60079-10:2002 MOD)
[Superseded]
Electrical apparatus for use in the presence of combustible dust, Part 3: Classification of areas where combustible dusts are or may be present
[Available Superseded]
Spray painting booths, designated spray painting areas and paint mixing rooms, Part 1: Design, construction and testing
[Superseded]
Classification of hazardous areas, Part 3.1: Examples of area classification - General
AS/NZS 1677
Refrigerating systems
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