1、 ISO 2015 Gaseous fire-extinguishing systems Physical properties and system design Part 12: IG-01 extinguishant Systmes dextinction dincendie utilisant des agents gazeux Proprits physiques et conception des systmes Partie 12: Agent extincteur IG-01 INTERNATIONAL STANDARD ISO 14520-12 Third edition 2
2、015-02-15 Reference number ISO 14520-12:2015(E) ISO 14520-12:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or me
3、chanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749
4、 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO 14520-12:2015(E)Foreword iv 1 Scope . 1 2 Normative reference . 1 3 Terms and definitions . 1 4 Characteristics and uses . 1 4.1 General . 1 4.2 Use of IG-01 systems 2 5 Safety of personnel . 5 6 System
5、 design 6 6.1 Fill pressure . 6 6.2 Superpressurization . 6 6.3 Extinguishant quantity . 6 7 Environmental properties 7 ISO 2015 All rights reserved iii Contents Page ISO 14520-12:2015(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standard
6、s bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organiz
7、ations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its fu
8、rther maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/direct
9、ives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the
10、Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions relate
11、d to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information. The committee responsible for this document is ISO/TC 21, Equipment for fire protection and fire fighting
12、, Subcommittee SC 8, Gaseous media firefighting systems using gas. This third edition cancels and replaces the second edition (ISO 14520-12:2005), which has been technically revised. ISO 14520 consists of the following parts, under the general title Gaseous fire-extinguishing systems Physical proper
13、ties and system design: Part 1: General requirements Part 2: CF3I extinguishant Part 5: FK-5-1-12 extinguishant Part 6: HCFC Blend A extinguishant Part 8: HFC 125 extinguishant Part 9: HFC 227ea extinguishant Part 10: HFC 23 extinguishant Part 11: HFC 236fa extinguishant Part 12: IG-01 extinguishant
14、 Part 13: IG-100 extinguishant Part 14: IG-55 extinguishant Part 15: IG-541 extinguishant Parts 3, 4, and 7, which dealt with FC-2-1-8, FC-3-1-10, and HCFC 124 extinguishants, respectively, have been withdrawn, as these types are no longer manufactured.iv ISO 2015 All rights reserved Gaseous fire-ex
15、tinguishing systems Physical properties and system design Part 12: IG-01 extinguishant 1 Scope This part of ISO 14520 contains specific requirements for gaseous fire-extinguishing systems, with respect to the IG-01 extinguishant. It includes details of physical properties, specification, usage, and
16、safety aspects. This part of ISO 14520 covers systems operating at nominal pressures of 160 bar, 200 bar, and 300 bar at 15 C. This does not preclude the use of other systems, although design data for other pressures are not available at this time. 2 Normative reference The following documents, in w
17、hole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 14520-1:2006, Gaseous fire-extin
18、guishing systems Physical properties and system design Part 1: General requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 14520-1 apply. 4 Characteristics and uses 4.1 General Extinguishant IG-01 shall comply with the specification shown in
19、 Table 1. IG-01 is a colourless, odourless, electrically non-conductive gas at ambient (20 C) temperatures, with a density approximately 1,4 times that of air. The physical properties are shown in Table 2. IG-01 extinguishes fires mainly by a reduction of the oxygen concentration in the atmosphere o
20、f the hazard enclosure. Table 1 Specification for IG-01 Property Requirement Purity 99,9 % by volume, min. Moisture 50 10 6by mass, max. Suspended matter or sediment None visible INTERNATIONAL ST ANDARD ISO 14520-12:2015(E) ISO 2015 All rights reserved 1 ISO 14520-12:2015(E) Table 2 Physical propert
21、ies of IG-01 Property Units Value Molecular mass 39,9 Boiling point at 1,013 bar (absolute) C 185,9 Freezing point C 189,4 Critical temperature C 122,3 Critical pressure bar abs 49,0 Critical volume cm 3 /mol Critical density kg/m 3 536 Vapour pressure 20 C bar abs Liquid density 20 C kg/m 3 Saturat
22、ed vapour density 20 C kg/m 3 Specific volume of superheated vapour at 1,013 bar and 20 C m 3 /kg 0,602 Chemical formula Ar Argon Chemical name 4.2 Use of IG-01 systems IG-01 total flooding systems can be used for extinguishing fires of all classes within the limits specified in ISO 14520-1:2006, Cl
23、ause 4. The extinguishant requirements per volume of protected space are shown in Table 3 for various levels of concentration. These are based on methods shown in ISO 14520-1:2006, 7.6. The extinguishing concentrations and design concentrations for heptane and surface class A hazards are shown in Ta
24、ble 4. Inerting concentrations are shown in Table 5.2 ISO 2015 All rights reserved ISO 14520-12:2015(E) Table 3 IG-01 total flooding quantity Temperature T C Specific vapour volume S IG-01 volume requirements per unit volume of protected space, V/V (m 3 /m 3 ) Design concentration (by volume) m 3 /k
25、g 34 % 38 % 42 % 46 % 50 % 54 % 58 % 62 % 40 0,4790 0,522 0,601 0,685 0,775 0,872 0,976 1,091 1,217 35 0,4893 0,511 0,588 0,671 0,758 0,853 0,956 1,068 1,191 30 0,4996 0,501 0,576 0,657 0,743 0,836 0,936 1,046 1,167 25 0,5098 0,491 0,565 0,644 0,728 0,819 0,917 1,025 1,143 20 0,5201 0,481 0,554 0,63
26、1 0,714 0,803 0,899 1,005 1,120 15 0,5304 0,472 0,543 0,619 0,700 0,787 0,882 0,985 1,099 10 0,5406 0,463 0,533 0,607 0,686 0,772 0,865 0,966 1,078 5 0,5509 0,454 0,523 0,596 0,674 0,758 0,849 0,948 1,058 0 0,5612 0,446 0,513 0,585 0,661 0,744 0,833 0,931 1,038 5 0,5715 0,438 0,504 0,574 0,649 0,731
27、 0,818 0,914 1,020 10 0,5817 0,430 0,495 0,564 0,638 0,718 0,804 0,898 1,002 15 0,5920 0,423 0,486 0,554 0,627 0,705 0,790 0,883 0,984 20 0,6023 0,416 0,478 0,545 0,616 0,693 0,777 0,868 0,968 25 0,6126 0,409 0,470 0,536 0,606 0,682 0,764 0,853 0,951 30 0,6228 0,402 0,462 0,527 0,596 0,670 0,751 0,8
28、39 0,936 35 0,6331 0,395 0,455 0,518 0,586 0,659 0,739 0,825 0,920 40 0,6434 0,389 0,448 0,510 0,577 0,649 0,727 0,812 0,906 45 0,6536 0,383 0,440 0,502 0,568 0,639 0,716 0,799 0,892 50 0,6639 0,377 0,434 0,494 0,559 0,629 0,704 0,787 0,878 55 0,6742 0,371 0,427 0,487 0,550 0,619 0,694 0,775 0,864 6
29、0 0,6845 0,366 0,421 0,479 0,542 0,610 0,683 0,763 0,851 65 0,6947 0,360 0,414 0,472 0,534 0,601 0,673 0,752 0,839 70 0,7050 0,355 0,408 0,465 0,526 0,592 0,663 0,741 0,827 75 0,7153 0,350 0,403 0,459 0,519 0,584 0,654 0,730 0,815 80 0,7256 0,345 0,397 0,452 0,511 0,575 0,645 0,720 0,803 85 0,7358 0
30、,340 0,391 0,446 0,504 0,567 0,636 0,710 0,792 90 0,7461 0,335 0,386 0,440 0,497 0,560 0,627 0,700 0,781 95 0,7564 0,331 0,381 0,434 0,491 0,552 0,618 0,691 0,770 100 0,7666 0,326 0,376 0,428 0,484 0,545 0,610 0,682 0,760 NOTE This information refers only to the product IG-01, and does not represent
31、 any other products contain- ing argon as a component. Symbols: V/V is the agent volume requirements (m 3 /m 3 ); i.e. the quantity Q R (m 3 ) of agent required at a ref- erence temperature of 20 C and a pressure of 1,013 bar per cubic metre of protected volume to produce the indicated concentration
32、 at the temperature specified: ISO 2015 All rights reserved 3 ISO 14520-12:2015(E)S R where is the specific reference volume (m 3 /kg); i.e. the specific vapour volume at the filling reference temperature for superheated IG-01vapour at a pressure of 1,013 bar which can be approximated by the formula
33、: ; wherek 1 = 0,561 19; k 2= 0,002 054 5 is the reference temperature (C); i.e. filling temperature (20 C in the table). V is the net volume of hazard (m 3 ); i.e. the enclosed volume minus the fixed structures impervious to extinguishant; T is the temperature (C); i.e. the design temperature of th
34、e protected area; S is the specific volume (m 3 /kg); the specific volume of superheated IG-01 vapour at a pressure of 1,013 bar can be approximated by the formula: S = k 1+ k 2T where c is the concentration (%); i.e. the volumetric concentration of IG-01 in air at the temperature indi- cated, and a
35、 pressure of 1,013 bar absolute.Table 3 (continued) 4 ISO 2015 All rights reserved ISO 14520-12:2015(E) Table 4 IG-01 reference extinguishing and design concentrations Fuel Extinguishment % by volume Minimum design % by volume Class B Heptane (cup burner) Heptane (room test)39,1 33,750,8 Surface Cla
36、ss A Wood Crib PMMA PP ABS30,7 31,6 31,6 32,241,9 Higher Hazard Class A See Note 4 48,3 NOTE 1 The extinguishment values for the Class B and the Surface Class A fuels are determined by testing in accordance with ISO 14520-1:2006, Annexes B and C. NOTE 2 The minimum design concentration for the Class
37、 B fuel is the higher value of the heptane cup burner or room test heptane extinguishment concentration multiplied by 1,3. NOTE 3 The minimum design concentration for Surface Class A fuel is the highest value of the wood crib, PMMA, PP, or ABS extinguishment concentrations multiplied by 1,3. In the
38、absence of any of the 4 extinguish- ment values, the minimum design concentration for Surface Class A shall be that of Higher Hazard Class A. NOTE 4 Higher-Hazard Class A hazards are those having the characteristics described in the CAUTION state- ment of ISO 14520-1:2006, 7.5.1.3. The minimum desig
39、n concentration for Higher Hazard Class A fuels shall be the higher of the Surface Class A or 95 % of the Class B minimum design concentration. NOTE 5 See ISO 14520-1:2006, 7.5.1.3, for guidance on Class A fuels. NOTE 6 The extinguishing and design concentrations for room-scale test fires are for in
40、formational pur- poses only. Lower and higher extinguishing concentrations than those shown for room-scale test fires can be achieved and allowed when validated by test reports from internationally recognized laboratories. Table 5 IG-01 inerting and design concentrations Fuel Inertion % by volume Mi
41、nimum design % by volume Methane 55,8 61,4 NOTE Inerting concentrations were determined in accordance with the requirements of ISO 14520-1:2006, 7.5.2 and Annex D. 5 Safety of personnel Any hazard to personnel created by the discharge of IG-01 shall be considered in the design of the system. Potenti
42、al hazards can arise from the following: a) oxygen reduction; and b) combustion products of the fire. For minimum safety requirements, see ISO 14520-1:2006, Clause 5. Physiological information for IG-01 is shown in Table 6. ISO 2015 All rights reserved 5 ISO 14520-12:2015(E) Table 6 Physiological in
43、formation for IG-01 Property Value % by volume No observed adverse effect level (NOAEL) 43 Lowest observed adverse effect level (LOAEL) 52 N O T E T h e s e v a l u e s a r e b a s e d o n p h y s i o l o g i c a l e f f e c t s i n h u m a n s u b j e c t s o f h y p o x i c atmospheres. These valu
44、es are the functional equivalents of NOAEL and LOAEL values, and correspond to 12 % minimum oxygen for the no-effect level and 10 % minimum oxygen for the low-effect level. 6 System design 6.1 Fill pressure The fill pressure of the container shall not exceed the values given in Tables 7, 8, and 9. T
45、he relationships between pressure and temperature are shown in Figure 1 for various levels of pressurization. Table 7 160 bar storage container characteristics for IG-01 Property Unit Value Filling pressure at 15 C bar 160 Maximum container working pressure at 50 C bar 188 NOTE Reference should be m
46、ade to Figure 1 for further data on pressure/temperature relationships. Table 8 200 bar storage container characteristics for IG-01 Property Unit Value Filling pressure at 15 C bar 200 Maximum container working pressure at 50 C bar 235 NOTE Reference should be made to Figure 1 for further data on pr
47、essure/temperature relationships. Table 9 300 bar storage container characteristics for IG-01 Property Unit Pressure Filling pressure at 15 C bar 300 Maximum container working pressure at 50 C bar 362 NOTE Reference should be made to Figure 1 for further data on pressure/temperature relationships. 6
48、.2 Superpressurization Containers for IG-01 are not superpressurized. 6.3 Extinguishant quantity The quantity of extinguishant shall be the minimum required to achieve the design concentration within the hazard volume at the minimum expected temperature, determined using Table 3 and the method speci
49、fied in ISO 14520-1:2006, 7.6.6 ISO 2015 All rights reserved ISO 14520-12:2015(E) The design concentrations shall be that specified for relevant hazards shown in Table 4. This includes a 1,3 safety factor on the extinguishing concentration. Consideration should be given to increasing this for particular hazards, and seeking advice from the relevant authority. 100 150 200 250 300 3
