ISO 14520-5-2016 Gaseous fire-extinguishing systems - Physical properties and system design - Part 5 FK-5-1-12 extinguishant《气体灭火系统 物理特性和系统设计 第5部分 FK-5-1-12灭火剂》.pdf

《ISO 14520-5-2016 Gaseous fire-extinguishing systems - Physical properties and system design - Part 5 FK-5-1-12 extinguishant《气体灭火系统 物理特性和系统设计 第5部分 FK-5-1-12灭火剂》.pdf》由会员分享，可在线阅读，更多相关《ISO 14520-5-2016 Gaseous fire-extinguishing systems - Physical properties and system design - Part 5 FK-5-1-12 extinguishant《气体灭火系统 物理特性和系统设计 第5部分 FK-5-1-12灭火剂》.pdf（14页珍藏版）》请在麦多课文档分享上搜索。

1、 ISO 2016 Gaseous fire-extinguishing systems Physical properties and system design Part 5: FK-5-1-12 extinguishant Systmes dextinction dincendie utilisant des agents gazeux Proprits physiques et conception des systmes Partie 5: Agent extincteur FK-5-1-12 INTERNATIONAL STANDARD ISO 14520-5 Second edi

2、tion 2016-09-15 Reference number ISO 14520-5:2016(E) ISO 14520-5:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or

3、by any means, electronic or mechanical, 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 Ch. de Blandonnet 8

4、CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 14520-5:2016(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 1 4 Characteristics and uses . 1 4.1 General . 1 4.2 Use of FK-5-1-12 systems 2 5 Safety o

5、f personnel . 5 6 System design 5 6.1 Fill density. 5 6.2 Superpressurization . 6 6.3 Extinguishant quantity . 6 7 Environmental properties 9 ISO 2016 All rights reserved iii Contents Page ISO 14520-5:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation

6、 of national standards 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.

7、International organizations, 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 thos

8、e intended for its further 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 (s

9、ee www.iso.org/directives). 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 doc

10、ument will be in the 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 a

11、nd expressions related to conformit y assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html. The committee responsible for this document is ISO/TC 21, Equi

12、pment for fire protection and fire fighting, Subcommittee SC 8, Gaseous media and firefighting systems using gas. This second edition cancels and replaces the first edition (ISO 14520-5:2006), which has been technically revised with the following changes: corrected the purity specification in Table

13、1; added reference to 34,5 bar and 50 bar systems in 6.1 and 6.2; added tables for 34,5 bar and 50 bar systems storage container characteristics data; added figures for pressure vs. temperature charts for 34,5 bar and 50 bar systems; added Clause 7. A list of all parts in the ISO 14520 series can be

14、 found on the ISO website.iv ISO 2016 All rights reserved INTERNATIONAL ST ANDARD ISO 14520-5:2016(E) Gaseous fire-extinguishing systems Physical properties and system design Part 5: FK-5-1-12 extinguishant 1 Scope This document contains specific requirements for gaseous fire-extinguishing systems,

15、with respect to FK-5-1-12 extinguishant. It includes details of physical properties, specification, usage and safety aspects. This document covers only systems operating at nominal pressures of 25 bar, 34,5 bar, 42 bar and 50 bar with nitrogen propellant. This does not preclude the use of other syst

16、ems. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (incl

17、uding any amendments) applies. ISO 14520-1, Gaseous fire-extinguishing 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. ISO and IEC maintain terminological datab

18、ases for use in standardization at the following addresses: IEC Electropedia: available at http:/ /www.electropedia.org/ ISO Online browsing platform: available at http:/ /www.iso.org/obp 4 Characteristics and uses 4.1 General Extinguishant FK-5-1-12 shall comply with the specification shown in Tabl

19、e 1. FK-5-1-12 is a clear, colourless, almost odourless, electrically non-conductive gas with a density approximately 11 times that of air. The physical properties are shown in Table 2. FK-5-1-12 extinguishes fires mainly by physical means, but also by some chemical means. ISO 2016 All rights reserv

20、ed 1 ISO 14520-5:2016(E) Table 1 Specification for FK-5-1-12 Property Requirement Purity 99,0 % mol/mol min. Acidity 3 10 6by mass, max. Water content 0,001 % by mass, max. Non-volatile residue 0,03 % by mass, max. Suspended matter or sediment None visible Table 2 Physical properties of FK-5-1-12 Pr

21、operty Units Value Molecular mass n/a 316,04 Boiling point at 1,013 bar (absolute) C 49,2 Freezing point C 108,0 Critical temperature C 168,66 Critical pressure bar 18,646 Critical volume cc/mole 494,5 Critical density kg/m 3 639,1 Vapour pressure 20 C bar abs 0,3260 Liquid density 20 C g/ml 1,616 S

22、aturated vapour density 20 C kg/m 3 4,3305 Specific volume of superheated vapour at 1,013 bar and 20 C m 3 /kg 0,0719 Heat of vapourization at boiling point KJ/kg 88,0 Chemical formula CF 3 CF 2 C(O)CF(CF 3 ) 2 Dodecafluoro-2-methylpentan-3-one Chemical name 4.2 Use of FK-5-1-12 systems FK-5-1-12 to

23、tal flooding systems may be used for extinguishing fires of all classes within the limits specified in ISO 14520-1:2015, Clause 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 14520-1:20

24、15, 7.6. The extinguishing concentrations and design concentrations for heptane and Surface Class A hazards are shown in Table 4. Concentrations for other fuels are shown in Table 5 and inerting concentrations in Table 6. Table 3 FK-5-1-12 total flooding quantity Temperature Specific volume FK-5-1-1

25、2 mass requirements per unit volume of protected space, m/V (kg/m 3 ) T S Design concentration (by volume) C m 3 /kg 3 % 4 % 5 % 6 % 7 % 8 % 9 % 10 % 20 0,0609 0,5077 0,6840 0,8640 1,0407 1,2357 1,4275 1,6236 1,8241 15 0,0623 0,4965 0,6690 0,8450 1,0248 1,2084 1,3961 1,5879 1,7839 10 0,0637 0,4859 0

26、,6545 0,8268 1,0027 1,1824 1,3660 1,5537 1,7455 5 0,0650 0,4756 0,6407 0,8094 0,9816 1,1575 1,3372 1,5209 1,7087 0 0,0664 0,4658 0,6275 0,7926 0,9613 1,1336 1,3096 1,4895 1,67342 ISO 2016 All rights reserved ISO 14520-5:2016(E) Temperature Specific volume FK-5-1-12 mass requirements per unit volume

27、of protected space, m/V (kg/m 3 ) T S Design concentration (by volume) C m 3 /kg 3 % 4 % 5 % 6 % 7 % 8 % 9 % 10 % 5 0,0678 0,4564 0,6148 0,7766 0,9418 1,1106 1,2831 1,4593 1,6395 10 0,0691 0,4473 0,6026 0,7612 0,9232 1,0886 1,2576 1,4304 1,6070 15 0,0705 0,4386 0,5909 0,7464 0,9052 1,0674 1,2332 1,4

28、026 1,5757 20 0,0719 0,4302 0,5796 0,7322 0,8879 1,0471 1,2096 1,3758 1,5457 25 0,0733 0,4222 0,5688 0,7184 0,8713 1,0275 1,1870 1,3500 1,5167 30 0,0746 0,4144 0,5583 0,7052 0,8553 1,0086 1,1652 1,3252 1,4888 35 0,0760 0,4069 0,5482 0,6925 0,8399 0,9904 1,1442 1,3013 1,4620 40 0,0774 0,3997 0,5385 0

29、,6802 0,8250 0,9728 1,1239 1,2783 1,4361 45 0,0787 0,3928 0,5291 0,6684 0,8106 0,9559 1,1043 1,2560 1,4111 50 0,0801 0,3860 0,5201 0,6570 0,7967 0,9395 1,0854 1,2345 1,3869 55 0,0815 0,3795 0,5113 0,6459 0,7833 0,9237 1,0671 1,2137 1,3636 60 0,0829 0,3733 0,5029 0,6352 0,7704 0,9084 1,0495 1,1936 1,

30、3410 65 0,0842 0,3672 0,4947 0,6247 0,7578 0,8936 1,0324 1,1742 1,3191 70 0,0856 0,3613 0,4868 0,6148 0,7457 0,8793 1,0158 1,1554 1,2980 75 0,0870 0,3556 0,4791 0,6052 0,7339 0,8654 0,9998 1,1372 1,2775 80 0,0883 0,3501 0,4716 0,5958 0,7225 0,8520 0,9843 1,1195 1,2577 85 0,0897 0,3447 0,4644 0,5866

31、0,7115 0,8390 0,9692 1,1024 1,2385 90 0,0911 0,3395 0,4574 0,5778 0,7008 0,8263 0,9547 1,0858 1,2198 95 0,0925 0,3345 0,4507 0,5692 0,6904 0,8141 0,9405 1,0697 1,2014 100 0,0938 0,3296 0,4441 0,5609 0,6803 0,8022 0,9267 1,0540 1,1842 NOTE This information refers only to FK-5-1-12 and does not repres

32、ent any other product containing dode- cafluoromethylpentan-3-one as a component. Symbols:m/V is the agent mass requirements (kg/m 3 ), i.e. mass, m, in kilograms of agent required per cubic metre of protected volume, V, to produce the indicated concentration at the temperature specified;V is the ne

33、t 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 in the hazard area;S is the specific volume (m 3 /kg); the specific volume of superheated FK-5-1-12 vapour at a pressure of 1,013 bar may be

34、 approximated by the formulaS = k 1+ k 2 Twherek 1= 0,066 4k 2= 0,000 274c is the concentration (%), i.e. the volumetric concentration of FK-5-1-12 in air at the temperature indi- cated and a pressure of 1,013 bar absolute.Table 3 (continued) ISO 2016 All rights reserved 3 ISO 14520-5:2016(E) Table

35、4 FK-5-1-12 reference extinguishing and design concentrations Fuel Extinguishment % by volume Minimum design % by volume Class B Heptane (cup burner) 4,5 5,9 Heptane (room test) 4,4 Surface Class A Wood crib 3,4 PMMA 4,1 5,3 PP 4,0 ABS 4,0 Higher Hazard Class A See Note 4 5,6 NOTE 1 The extinguishme

36、nt values for the Class B and the Surface Class A fuels are determined by testing in accordance with ISO 14520-1:2015, Annexes B and C. NOTE 2 The minimum design concentration for the Class B fuel is the higher value of the heptane cup burner or room test heptane extinguishment concentration multipl

37、ied 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 absence of any of the four extinguishment values, the minimum design concentration for Surface Class A is that o

38、f Higher Hazard Class A. NOTE 4 The minimum design concentration for Higher Hazard Class A fuels is the higher of the Surface Class A or 95 % of the Class B minimum design concentration. NOTE 5 See ISO 14520-1:2015, 7.5.1.3 for guidance on Class A fuels. In Table 4, the extinguishing and design conc

39、entrations for room-scale test fires are for informational purposes only. Lower and higher extinguishing concentrations than those shown for room-scale test fires may be achieved and allowed when validated by test reports from internationally recognized laboratories. Table 5 FK-5-1-12 concentrations

40、 for other fuels Fuel Extinguishment % by volume Minimum design % by volume Acetone 4,5 5,9 Ethyl alcohol 5,5 7, 2 Marine diesel 4,5 5,9 Methyl alcohol 6,5 8,5 Methyl ethyl ketone 4,5 5,9 n-heptane 4,5 5,9 Technical heptane 4,5 5,9 NOTE Extinguishing concentrations for all Class B fuels listed were

41、derived in accordance with ISO 14520-1:2015, Annex B. Minimum design values have been increased to the minimum design concentration established for heptane in accordance with ISO 14520-1:2015, 7.5.1.4 ISO 2016 All rights reserved ISO 14520-5:2016(E) Table 6 FK-5-1-12 inerting and design concentratio

42、ns Fuel Inertion % Minimum design % Methane 8,8 9,7 Propane 8,1 8,9 NOTE Determined in accordance with ISO 14520-1. 5 Safety of personnel Any hazard to personnel created by the discharge of FK-5-1-12 shall be considered in the design of the system. Potential hazards can arise from the following: a)

43、the extinguishant itself; b) the combustion products of the fire; c) the breakdown products of the extinguishant resulting from exposure to fire. For minimum safety requirements, see ISO 14520-1:2015, Clause 5. Toxicological information for FK-5-1-12 is shown in Table 7. Table 7 Toxicological inform

44、ation for FK-5-1-12 Property Value % 4 h LC 50 10 % No observed adverse effect level (NOAEL) 10 % Lowest observed adverse effect level (LOAEL) 10 % NOTE LC 50is the concentration lethal to 50 % of the rat population during a 4 h exposure. 6 System design 6.1 Fill density The fill density of the cont

45、ainer shall not exceed the values shown in Table 8 to 11 for 25 bar, 34,5 bar, 42 bar or 50 bar systems. Exceeding the maximum fill density may result in the container becoming “liquid full”, with the effect that an extremely high rise in pressure occurs with small increases in temperature, which co

46、uld adversely affect the integrity of the container assembly. The relationships between pressure and temperature are shown in Figure 1 for various levels of fill density. ISO 2016 All rights reserved 5 ISO 14520-5:2016(E) Table 8 25 bar storage container characteristics for FK-5-1-12 Property Unit V

47、alue Maximum fill density kg/m 3 1 480 Maximum container working pressure at 50 C bar (gauge) 29 Superpressurization at 20 C bar (gauge) 25 NOTE Reference should be made to Figure 1 for further data on pressure/temperature relationships. Table 9 34,5 bar storage container characteristics for FK-5-1-

48、12 Property Unit Value Maximum fill density kg/m 3 1 200 Maximum container pressure at 50 C bar (absolute) 48 Superpressurization at 20 C bar (absolute) 34,5 NOTE Reference should be made to Figure 2 for further data on pressure/temperature relationships. Table 10 42 bar storage container characteri

49、stics for FK-5-1-12 Property Unit Value Maximum fill density kg/m 3 1 440 Maximum container pressure at 50 C bar (absolute) 38 Superpressurization at 20 C bar (absolute) 42 NOTE Reference should be made to Figure 3 for further data on pressure/temperature relationships. Table 11 50 bar storage container characteristics for FK-5-1-12 Property Unit Value Maximum fill density kg/m 3 1 200 Maximum container pressure at 50 C bar (absolute) 57