1、December 2016 English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.020.35!%“2596157www.din.deDI
2、N EN ISO 14456Gas cylinders Gas properties and associated classification (FTSC) codes (ISO 14456:2015);English version EN ISO 14456:2016,English translation of DIN EN ISO 14456:2016-12Gasflaschen Eigenschaften von Gasen und zugehrige Klassifizierungscodes (FTSC) (ISO 14456:2015);Englische Fassung EN
3、 ISO 14456:2016,Englische bersetzung von DIN EN ISO 14456:2016-12Bouteilles gaz Proprits des gaz et codes de classification associs (FTSC) (ISO 14456:2015);Version anglaise EN ISO 14456:2016,Traduction anglaise de DIN EN ISO 14456:2016-12www.beuth.deDocument comprises 24 pagesDTranslation by DIN-Spr
4、achendienst.In case of doubt, the German-language original shall be considered authoritative.12.16 DIN EN ISO 14456:2016-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 14456:2016) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” in collaboration
5、 with Technical Committee CEN/TC 23 “Transportable gas cylinders” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Druckgasanlagen (DIN Standards Committee Pressurized Gas Installations), Working Committee NA 016-00-03 AA Druckgasfla
6、schen und Ausrstung; Spiegelausschuss zu CEN/TC 23 und ISO/TC 58. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 10156 DIN EN ISO 10156 ISO 10286 DIN EN ISO 10286 ISO 11114 (all parts) DIN EN ISO 11114 (all parts) National Annex NA (in
7、formative) Bibliography DIN EN ISO 10156, Gas cylinders Gases and gas mixtures Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets DIN EN ISO 10286, Gas cylinders Terminology DIN EN ISO 11114 (all parts), Gas cylinders Compatibility of cylinder and valve
8、 materials with gas contents EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14456 September 2016 ICS 23.020.30 English Version Gas cylinders - Gas properties and associated classification (FTSC) codes (ISO 14456:2015) Bouteilles gaz - Proprits des gaz et codes de classification associs (FT
9、SC) (ISO 14456:2015) Gasflaschen - Eigenschaften von Gasen und zugehrige Klassifizierungscodes (FTSC) (ISO 14456:2015) This European Standard was approved by CEN on 2 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving t
10、his European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official
11、 versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Aus
12、tria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swed
13、en, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN
14、 national Members. Ref. No. EN ISO 14456:2016 EEuropean foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Gas properties .74.1 Numerical gas code (FTSC) 74.1.1 General 74.1.2 Fire potential, category I . 74.1.3 Acute toxicity, category II . 84.1.4 State of the
15、gas (in the cylinder at 15 C), category III 84.1.5 Corrosiveness, category IV 85 List of gases and liquids with the corresponding FTSC codes .95.1 Basic principles and single gases 95.2 Assignment of a gas mixture to a group 95.3 Tables of compatible groups of gases and liquids . 10Bibliography .22C
16、ontents PageDIN EN ISO 14456:2016-12 EN ISO 14456:2016 (E)2Foreword .5European foreword The text of ISO 14456:2015 has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 14456:2016 by Technical
17、Committee CEN/TC 23 “Transportable gas cylinders” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2017, and conflicting national standards shall be w
18、ithdrawn at the latest by March 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulation
19、s, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
20、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14456:2015 has been approved by CEN as EN ISO 14456:2016 without any modification. DIN EN ISO 14456:
21、2016-12 EN ISO 14456:2016 (E)3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interes
22、ted in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical C
23、ommission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those 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 document
24、s should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see 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 f
25、or identifying any or all such patent rights. Details of any patent rights identified during the development of the document 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
26、convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related 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: For
27、eword Supplementary information .The committee responsible for this document is ISO/TC 58, Gas cylinders, SC 2, Cylinder fittings.DIN EN ISO 14456:2016-12 EN ISO 14456:2016 (E)4 IntroductionThis International Standard establishes a method of allocating a four-digit code number (FTSC) to any gas, liq
28、uids that are transported under pressure or mixture of gases contained in cylinders. This code number categorizes the gas, liquids that are transported under pressure or gas mixture in terms of its physical-chemical properties and/or flammability, toxicity, state of the gas, and corrosiveness (see 4
29、.1). FTSC is the abbreviation of these properties.The FTSC code enables a gas, liquids that are transported under pressure or gas mixture to be assigned to one of the 15 “compatible” gas groups.The FTSC codes and the method for their determination are currently given in ISO 5145:2014, Annex A for us
30、e in the selection of valve outlets. This annex from ISO 5145 will be removed when the present standard is published.The properties and the selection criteria are aligned as appropriate with the Globally Harmonized System for the Classification and Labelling of Chemicals (GHS).DIN EN ISO 14456:2016-
31、12 EN ISO 14456:2016 (E)5 1 ScopeThis International Standard gives a list of FTSC (fire potential, i.e. “oxidizing potential and flammability”, toxicity, state of the gas, and corrosiveness) codes determined according to the relevant properties of gases and of some liquids that are transported under
32、 pressure.It does not cover gas material compatibility which is covered by ISO 11114 (all parts).2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited app
33、lies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 10156, Gases and gas mixtures Determination of fire potential and oxidizing ability for the selection of cylinder valve outletsISO 10298, Determination of toxicity of a gas or gas mixtu
34、reISO 10286:2015, Gas cylinders Terminology3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1gas mixturecombination of different single gases deliberately mixed in specified proportionsSOURCE: ISO 10286:2015, definition 7043.2liquefied gasgas, whi
35、ch, when packaged for transport, is partially liquid (or solid) at temperature above 50 CSOURCE: ISO 10286:2015, definition 7063.3compressed gasgas, which, when packaged under pressure for transport, is entirely gaseous at 50 CNote 1 to entry: This category includes all gases with a critical tempera
36、ture less than or equal to 50 C.SOURCE: ISO 10286:2015, definition 705DIN EN ISO 14456:2016-12 EN ISO 14456:2016 (E)6 3.4lethal concentration 50LC50concentration of a gas (or a gas mixture) in air administered by a single exposure during a short period of time (24 h or less) to a group of young adul
37、t albino rats (males and females) which leads to the death of half of the animals in at least 14 dSOURCE: ISO 10298:2010, definition 2.14 Gas properties4.1 Numerical gas code (FTSC)4.1.1 GeneralThe code number assigned to a gas or liquid is based on the following four physical-chemical properties:a)
38、 Category I (F): fire potential, defining the gas behaviour with respect to combustion;b) Category II (T): acute toxicity;c) Category III (S): gas state, defining the physical state of the fluid in the cylinder at 15 C within a given pressure range;d) Category IV (C): corrosiveness (ability to damag
39、e or destroy living tissues: eyes, skin, and mucous membranes).Each category is subdivided into different characteristics (subdivisions), each identified by a different digit. In this way, a gas in a given state is characterized by a series of four digits (one digit per category) as illustrated belo
40、w.4.1.2 Fire potential, category ISubdivision 0: inert (any gas not classified under subdivisions 1 to 5 below);Subdivision 1: supports combustion (gas having an oxidizing power equal to or less than a mixture containing 23,5 % of oxygen in nitrogen);Subdivision 2: flammable (gas having flammability
41、 limits in air);NOTE 1 See ISO 10156 for more information.Subdivision 3: pyrophoric (spontaneously flammable);Subdivision 4: oxidizing (gas having an oxidizing power greater than a mixture containing 23,5 % O2in N2);NOTE 2 See ISO 10156 for more information.Subdivision 5: chemically unstable (flamma
42、ble and subject to rapid decomposition or polymerization).NOTE 3 When considering the properties of gases from subdivisions 1 and 4, the following applies:a) Subdivision 4 considers the risk of accelerating combustion more than air does;b) For gas material compatibility with gases under pressure of
43、subdivisions 1 and 4, it is considered that the risk of ignition exists when the oxygen partial pressure is more than 30 bar;c) For valves outlet selection (for example, see ISO 5145), the risk is to mix a flammable gas (subdivision 2 and/or 3) with a gas of subdivision 1 and/or 4.DIN EN ISO 14456:2
44、016-12 EN ISO 14456:2016 (E)7 4.1.3 Acute toxicity, category IISubdivision 0: supporting human life;Subdivision 1: non-toxic LC50 rat 1h 0,5 % by volume (5 000 ppm);Subdivision 2: toxic; 0,02 % by volume (200 ppm) LC50 rat 1h 0,5 % by volume (5 000 ppm);Subdivision 3: very toxic LC50 rat 1h 0,02 % b
45、y volume (200 ppm).NOTE See ISO 10298 for more information.4.1.4 State of the gas (in the cylinder at 15 C), category IIIAll pressures for compressed gases are working pressures according to the definition given in ISO 10286.For liquefied gases, this is the developed pressure at 65 C (normally equal
46、 to the cylinder test pressure).Subdivision 0: liquefied gas of 35 bar or less;Subdivision 1: liquefied gas at a pressure greater than 35 bar;Subdivision 2: liquid withdrawal liquefied gas (optional);Subdivision 3: dissolved gas;Subdivision 4: gas phase withdrawal at 35 bar or less;Subdivision 5: co
47、mpressed gas between 35 bar and 250 bar (Europe);Subdivision 6: compressed gas between 35 bar and 207 bar (North America);Subdivision 7: compressed gas above 207 bar (North America) or 250 bar (Europe).NOTE 1 Subdivisions 5 and 6 have been adopted as a result of a compromise between the European and
48、 the North American approach. The European preference for a limit of 250 bar reflects the current tendency towards higher pressure applications. The current North American practice requires a limit of 207 bar for which their pressure reducing valves are designed. This is the working pressure at the referenced temperature of 15 C. Therefore, three pressur
