AS 4214.3-1995

1 - AS 4214.3-1995 GASEOUS FIR EXTINGUISHING SYSTEMS - CARBON DIOXIDE SYSTEMS
4 - PREFACE
6 - CONTENTS
8 - FOREWORD
9 - SECTION 1 SCOPE AND GENERAL
9 - 1.1 SCOPE
9 - 1.2 APPLICATION
9 - 1.3 REFERENCED DOCUMENTS
10 - 1.4 DEFINITIONS
10 - 1.5 USES AND LIMITATIONS OF CARBONDIOXIDE
10 - 1.5.1 General
10 - 1.5.2 Uses of carbon dioxide
11 - 1.5.3 Limitations of carbondioxide systems
12 - SECTION 2 SAFETY REQUIREMENTS
12 - 2.1 SAFETY OF PERSONNEL
12 - 2.1.1 General
12 - 2.1.2 Protection of occupants
12 - 2.1.3 Precautions for entering confined spaces and low lying areas.
12 - 2.1.4 Entry to protected areas
12 - 2.2 SAFETY PRECAUTIONS
12 - 2.2.1 General
12 - 2.1.2 Electrostatic discharge
13 - SECTION 3 SYSTEM DESIGN
13 - 3.1 GENERAL
13 - 3.2 TOTAL FLOODING SYSTEMS BASIS FOR DESIGN
13 - 3.3 DESIGN QUANTITY OF CARBONDIOXIDE
13 - 3.3.1 Factors to be considered
14 - 3.3.2 Leakage and ventilation
14 - 3.3.3 Types of fires
14 - 3.3.4 Pressure adjustment
14 - 3.4 CARBONDIOXIDE REQUIREMENTS FOR SURFACE FIRES
14 - 3.4.1 General
14 - 3.4.2 Flammable materials
15 - 3.4.3 Volumefactor
15 - 3.4.4 Material conversion factor
15 - 3.4.5 Special conditions Total flooding systems
18 - 3.5 CARBONDIOXIDE REQUIREMENTS FOR DEEP-SEATED FIRES
18 - 3.5.1 General
18 - 3.5.2 Combustible materials
18 - 3.5.3 Volume consideration
18 - 3.5.4 Special conditions
19 - 3.6 RATE OF APPLICATION
19 - 3.7 EXTENDED RATE OF APPLICATION
19 - 3.8 PIPING SYSTEMS
19 - 3.9 LOCAL APPLICATION SYSTEMS
19 - 3.10 HAZARD SPECIFICATION
20 - 3.11 LOCATION OF HAZARD
20 - 3.12 CARBON DIOXIDE REQUIREMENTS
20 - 3.13 RATEOF DISCHARGE
20 - 3.14 DURATION OF DISCHARGE
21 - 3.15 RATE BY AREA METHOD OF SYSTEM DESIGN
21 - 3.15.1 General
21 - 3.15.2 Nozzle discharge rates
21 - 3.15.3 Area protected by nozzle
21 - 3.15.4 Location and number of nozzles
22 - 3.16 RATE BY VOLUME METHOD
22 - 3.16.1 General
22 - 3.16.2 Assumed enclosure
23 - 3.16.3 Total discharge rate
23 - 3.16.4 Location and number of nozzles
23 - 3.17 DISTRIBUTION SYSTEM
23 - 3.17.1 General
23 - 3.17.2 Piping systems
24 - 3.17.3 Discharge nozzles
24 - 3.18 COMPATIBILITY
25 - SECTION 4 PROTECTED ENCLOSURE
26 - SECTION 5 CARBON DIOXIDE SUPPLY
26 - 5.1 QUALITY
26 - 5.2 HIGH-PRESSURE SYSTEMS
26 - 5.2.1 Storage containers
26 - 5.2.2 Storage container arrangement
27 - 5.2.3 Container condition
27 - 5.3 LOW-PRESSURE SYSTEMS
27 - 5.3.1 Low-pressure refrigerated storage containers
28 - 5.3.2 Container condition
29 - SECTION 6 DISTRIBUTION SYSTEM
29 - 6.1 GENERAL
29 - 6.2 STEEL PIPE
30 - 6.3 COPPER PIPE
30 - 6.4 PIPING JOINTS
30 - 6.4.1 Joint of ferrous pipes
30 - 6.4.2 Jointing of copper pipe
30 - 6.5 DIRTTRAPS
30 - 6.6 SAFETY DEVICES
30 - 6.6.1 Pressure relief device
30 - 6.6.2 Discharge indicator
30 - 6.7 PIPE AND ORIFICE SIZE DETERMINATION
31 - 6.8 NOZZLES
34 - SECTION 7 CONTROL SYSTEMS
34 - SECTION 8 MARKING
34 - 8.1 GENERAL
34 - 8.2 IDENTIFICATION
34 - SECTION 9 COMMISSIONING AND ACCEPTANCE TESTING
34 - 9.1 CRITERIA FOR ACCEPTANCE
34 - 9.2 COMMISSIONING CERTIFICATION
34 - 9.3 FAILURE
35 - APPENDIX A - COMMENTARY ON ASPECTS OF THIS STANDARD
35 - A1.5 USES AND LIMITATIONS OF CARBON DIOXIDE
35 - A1.5.1 General (uses and limitations of carbondioxide)
37 - A1.5.2 Uses of carbondioxide systems
37 - A3.3 DESIGN QUANTITY OF CARBONDIOXIDE
39 - A3.3.2 Leakage and ventilation
39 - A3.3.3 Types of fires
40 - A3.4.2 Flammable materials
42 - A3.5 CARBONDIOXIDE REQUIREMENTS FOR DEEP-SEATED FIRES
42 - A3.6 RATE OF APPLICATION
42 - A3.7 EXTENDED RATE OF APPLICATION
43 - A3.9 LOCAL APPLICATION SYSTEMS
45 - A3.12 CARBONDIOXIDE REQUIREMENTS
46 - A.3.14 DURATION OF DISCHARGE
47 - A3.15.2 Nozzle discharge rates
48 - A5.2.1 Storage containers
49 - A5.3 LOW PRESSURE SYSTEMS
50 - A6.1 GENERAL (DISTRIBUTION SYSTEM)
51 - A6.7 PIPE AND ORIFICE SIZE DETERMINATION
59 - APPENDIX B - EXAMPLES OF HAZARD PROTECTION
59 - B1 GENERAL
59 - B2 RESTAURANT RANGE HOODS, CONNECTED DUCTS AND ASSOCIATED HAZARDS
60 - B3 NEWSPAPER PRINTING AND ROTOGRAVURE PRESSES
61 - B4 OPEN PITS
63 - APPENDIX C - DISCHARGE TEST
63 - C1 SCOPE
63 - C2 PRINCIPLE
63 - C3 TEST MEDIUM
63 - C4 APPARATUS
63 - C5 PROCEDURE
63 - C6 RECOMMISSIONING
64 - C7 REPORTING
65 - APPENDIX D - NOTICE OF COMPLETION

Specifies requirements for carbon dioxide systems utilizing high or refrigerated low pressure carbon dioxide as the fire extinguishant. This Standard was prepared as a companion document to AS 4214.1-1995.

This Standard complements AS 4214.1 and sets out the requirements for carbon dioxide systems, utilizing high or refrigerated low pressure carbon dioxide as the fire extinguishant.The carbon dioxide shall comply with the requirements of AS 4078.General principles may well apply for other uses (e.g. maritime use). However, additional considerations may have to be taken into account which are beyond the scope of this Standard.NOTE: A commentary on certain aspects of this Standard is given in an advisory manner in Appendix A. It relates to specific Clauses in the text identifying relative information bearing, in each instance, the Clause number and title preceded by the letter 'A', e.g. A1.5 Uses and limitations of carbon dioxide.

First published as AS 4214.3-1995.