AS/NZS 2430.3.4:2004
Superseded
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Classification of hazardous areas Examples of area classification - Flammable gases
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20-05-2004
29-05-2024
Specifies guidance on the classification of areas associated with the production, processing, handling and storage of flammable liquids and gases, in refineries and major processing plants. It includes specific examples of classification for such areas, based on a generalized method area classification. To be read in conjunction with AS/NZS 2430.3.1.
| Committee |
MS-011
|
| DocumentType |
Standard
|
| ISBN |
0 7337 5971 8
|
| Pages |
16
|
| PublisherName |
Standards Australia
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This Standard provides examples of area classification for areas associated with the production, processing, handling and storage of heavier-than-air and lighter-than-air flammable gases. It is Part of the AS/NZS 2430.3 series which recommends the classifications of several commonly occurring situations and should be read in conjunction with AS/NZS 2430.3.1. Caution should be exercised when considering gases with densities close to that of air, or any lighter-than-air gas which may be cooled substantially below ambient air temperature (e.g. by expansion from a compressed liquefied, or refrigerated liquefied state); such gases may behave as either heavier-than-air gases or lighter-than-air gases and therefore the applicable Clauses should be considered. For flammable gases in refineries and major processing plants reference should be made to AS/NZS 2430.3.5, which uses the Generalized Method of classification. All pressures quoted in this Standard are gauge pressures unless specified otherwise.
First published in Australia as part of AS 1076.2-1977.
AS 2430.1 first published 1981.
AS 1076.2-1977 and AS 2430.1-1981 revised, amalgamated and designated AS 2430.1-1982.
AS 2430-1-1982 revised and redesignated in part as AS 2430.3-1987.
Second edition 1991.
First published in New Zealand as part of NZS 6101P:1972.
Revised and redesignated in part as NZS 6101.3:1991.
AS 2430.3-1991 and NZS 6101.3:1991 revised, amalgamated and redesignated in part as AS 2430.3.4:1997.
Second edition 2004.
A newer version of this standard is available.
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