SIST EN ISO 5771:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gummischläuche und -schlauchleitungen für den Transport von wasserfreiem Ammoniak - Anforderungen (ISO 5771:2008)Tuyaux et flexibles en caoutchouc pour le transfert d'ammoniac anhydre - Spécifications (ISO 5771:2008)Rubber hoses and hose assemblies for transferring anhydrous ammonia - Specification (ISO 5771:2008)23.040.70Gumene cevi in armatureHoses and hose assembliesICS:Ta slovenski standard je istoveten z:EN ISO 5771:2008SIST EN ISO 5771:2009en,fr,de01-januar-2009SIST EN ISO 5771:2009SLOVENSKI
STANDARDSIST EN ISO 5771:20001DGRPHãþD



SIST EN ISO 5771:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 5771September 2008ICS 71.120.99; 83.140.40Supersedes EN ISO 5771:1996
English VersionRubber hoses and hose assemblies for transferring anhydrousammonia - Specification (ISO 5771:2008)Tuyaux et flexibles en caoutchouc pour le transfertd'ammoniac anhydre - Spécifications (ISO 5771:2008)Gummischläuche und -schlauchleitungen für den Transportvon wasserfreiem Ammoniak - Anforderungen (ISO5771:2008)This European Standard was approved by CEN on 30 August 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 5771:2008: ESIST EN ISO 5771:2009



EN ISO 5771:2008 (E) 2 Contents Page Foreword.3
SIST EN ISO 5771:2009



EN ISO 5771:2008 (E) 3 Foreword This document (EN ISO 5771:2008) has been prepared by Technical Committee ISO/TC 45 "Rubber and rubber products" in collaboration with Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” 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 2009, and conflicting national standards shall be withdrawn at the latest by March 2009. 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. This document supersedes EN ISO 5771:1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 5771:2008 has been approved by CEN as a EN ISO 5771:2008 without any modification.
SIST EN ISO 5771:2009



SIST EN ISO 5771:2009



Reference numberISO 5771:2008(E)© ISO 2008
INTERNATIONAL STANDARD ISO5771Third edition2008-09-15Rubber hoses and hose assemblies for transferring anhydrous ammonia — Specification Tuyaux et flexibles en caoutchouc pour le transfert d'ammoniac anhydre — Spécifications SIST EN ISO 5771:2009



ISO 5771:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
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SIST EN ISO 5771:2009



ISO 5771:2008(E) © ISO 2008 – All rights reserved iiiContents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Terms and definitions.2 4 Pressure rating.2 5 Materials and construction.2 5.1 Lining.2 5.2 Reinforcement.2 5.3 Cover.2 5.4 Hose assemblies.2 6 Dimensions.3 6.1 Inside diameters and tolerances.3 6.2 Outside diameter.3 6.3 Concentricity.3 6.4 Tolerances on length.3 7 Physical properties.3 7.1 Rubber compounds.3 7.2 Finished hose.4 7.3 Ammonia resistance tests.5 8 Hose assembly delivery test and annual in-use test requirements.8 9 Frequency of testing.9 10 Marking.9 11 Packaging and storage.9 12 Test certificate.9 Annex A (normative)
Type and routine testing of production hoses and hose assemblies.10 Annex B (informative)
Periodic (quality control) testing of production hoses.11 Annex C (informative)
Recommendations for the lengths of hoses supplied in bulk and for tolerances on the lengths of hose assemblies.12 Bibliography.13
SIST EN ISO 5771:2009



ISO 5771:2008(E) iv © ISO 2008 – All rights reserved Foreword ISO (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 interested 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 Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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. ISO 5771 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics). This third edition cancels and replaces the second edition (ISO 5771:1994), which has been technically revised. The main changes are the addition of a concentricity requirement (see 6.3), increases in the lining and cover adhesion requirements (see Table 4) and more detailed cover pin-pricking requirements (see 5.3). It also incorporates the Technical Corrigendum ISO 5771:1994/Cor.1:1995.
SIST EN ISO 5771:2009



INTERNATIONAL STANDARD ISO 5771:2008(E) © ISO 2008 – All rights reserved 1Rubber hoses and hose assemblies for transferring anhydrous ammonia — Specification WARNING — Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national regulatory conditions. CAUTION — All personnel working with anhydrous ammonia and its delivery systems should be familiar with and utilize the necessary safety precautions to minimize the potential for personal injury and property damage. Do not use anhydrous-ammonia hose assemblies at temperatures or pressures above those recommended by the hose manufacturer. Never recouple an anhydrous-ammonia hose. Hoses manufactured to this specification are suitable for use with anhydrous ammonia only. 1 Scope This International Standard specifies the minimum requirements for rubber hoses used for transferring ammonia, in liquid or in gaseous form, at ambient temperatures from −40 °C up to and including +55 °C. It does not include specifications for end fittings, but is limited to the performance of the hoses and hose assemblies. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties ISO 188:2007, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests ISO 1307, Rubber and plastics hoses — Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of hoses and the lengths of hose assemblies ISO 4672:1997, Rubber and plastics hoses — Sub-ambient temperature flexibility tests ISO 7326, Rubber and plastics hoses — Assessment of ozone resistance under static conditions ISO 8033, Rubber and plastics hoses — Determination of adhesion between components ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary SIST EN ISO 5771:2009



ISO 5771:2008(E) 2 © ISO 2008 – All rights reserved 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 8330 apply. 4 Pressure rating The pressure rating shall comply with the requirements of Table 1. Table 1 — Pressure requirements Pressure requirements Parameter bar MPa Maximum working pressure 25 2,5 Proof pressure 63 6,3 Minimum burst pressure 125 12,5
5 Materials and construction 5.1 Lining The lining shall be of uniform thickness of at least 1,5 mm, measured in accordance with ISO 4671, and free from holes, porosity and other defects. The finished hose lining shall comply with the performance requirements specified in Table 3. The material used shall be resistant to hardening or other deterioration due to the action of ammonia. 5.2 Reinforcement The reinforcement shall consist of a material not adversely affected by permeating ammonia. It shall be applied evenly and uniformly, and in such a way that the finished hose complies with the relevant performance requirements specified in Table 4. A suitable material is corrosion-resistant stainless steel. 5.3 Cover The rubber cover, when used, shall be uniform in quality and thickness and shall be free from injurious defects. It shall comply with the relevant performance requirements specified in Table 3. It shall also be resistant to deterioration due to exposure to ammonia and exposure to the external environment. A gas-tight rubber cover sh
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