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BRITISH STANDARD Transportable gas cylinders Ð Filling conditions for single acetylene cylinders The European Standard EN 1801:1998 has the status of a British Standard ICS 23.020.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW | BS EN | | | 1801:1999 | | | | Incorporating | | Corrigendum No | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BS EN 1801:1999 National foreword This British Standard is the English language version of EN 1801:1998, including corrigendum June 1999 The UK participation in its preparation was entrusted by Technical Committee PVE/3, Gas containers, to Subcommittee PVE/3/7, Gas cylinder (receptacle) operations, which has the responsibility to: Ð aid enquirers to understand the text; Ð present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; Ð monitor related international and European developments and promulgate them in the UK A list of organizations represented on this subcommittee can be obtained on request to its secretary Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ªInternational Standards Correspondence Indexº, or by using the ªFindº facility of the BSI Standards Electronic Catalogue A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages to and a back cover The BSI copyright notice displayed in this document indicates when the document was last issued This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 April 1999 BSI 02-2000 ISBN 580 30825 Amendments issued since publication Amd No Date Comments 10771 Corr No February 2000 Addition of extra paragraph to EN foreword EN 1801 EUROPEAN STANDARD NORME EUROPÊENNE EUROPẰISCHE NORM December 1998 ICS 23.020.30 Incorporating corrigendum June 1999 Descriptors: gas cylinders, acetylene, filling, operating requirements, porosity, determination of content, solvents, verification, marking English version Transportable gas cylinders Ð Filling conditions for single acetylene cylinders Bouteilles aÁ gaz transportables Ð Conditions de remplissage pour les bouteilles d'aceÂtyleÁne individuelles Ortsbewegliche Gasflaschen Ð AbfuÈllbedingungen fuÈr einzelne Acetylen-Gasflaschen This European Standard was approved by CEN on 16 October 1998 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard 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 Central Secretariat or to any CEN member This European Standard exists in three official 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 Central Secretariat has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CEN European Committee for Standardization Comite EuropeÂen de Normalisation EuropaÈisches Komitee fuÈr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 1801:1998 E Page EN 1801:1998 Foreword Contents This European Standard has been prepared by Technical 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 June 1999, and conflicting national standards shall be withdrawn at the latest by June 1999 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom This European Standard has been submitted for reference into the RID and/or in the technical annexes of the ADR Therefore in this context the standards listed in the normative references and covering basic requirements of the RID/ADR not addressed within the present standard are normative only when the standards themselves are referred to in the RID and/or in the technical annexes of the ADR Foreword Scope Normative references Definitions Requirements for filling single acetylene cylinders Determination of solvent content Simultaneous filling of acetylene cylinders Postfill check Filling of solvent free acetylene cylinders Annex A (normative) Filling of acetylene cylinders not manufactured and approved in accordance with European Standards Annex B (normative) Calculation of acetylene in cylinders 标准分享网 www.bzfxw.com 免费下载 Page 3 4 4 5 BSI 02-2000 Page EN 1801:1998 Scope This European Standard specifies the requirements for filling individual acetylene cylinders with different porous masses and different solvents including individual cylinders without solvent Normative references 3.3 total weight for cylinders with solvent, total weight is TARE A plus the weight of the maximum acetylene content; for solvent free cylinders, total weight is TARE F plus the weight of the maximum acetylene content [EN 1800:1998] This European Standard incorporates by dated or undated reference, provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies EN 1800:1998, Transportable gas cylinders Ð Acetylene cylinders Ð Basic requirements and definitions 3.4 maximum acetylene content the specified maximum weight of acetylene in the cylinder (in kilograms); when a solvent is used, it includes the weight of saturation gas [EN 1800:1998] Definitions NOTE The porous mass may be either: Ð monolithic, consisting of a solid product obtained by reacting materials or by materials connected together with a binder, or: Ð non-monolithic, consisting of granular, fibrous or similar materials without addition of a binder [EN 1800:1998] For the purpose of this European Standard the following definitions apply 3.1 acetylene cylinder cylinder containing a porous mass with or without solvent for the storage of acetylene [EN 1800:1998] 3.2 tare weight 3.2.1 for acetylene cylinders with solvent the tare weight is expressed by indicating two weights (in kilograms) TARE A and TARE S: TARE A is the sum of the empty weight of the cylinder shell, the weight of the porous mass, the specified weight of solvent content, the weight of the valve and the weight of all other parts that are permanently attached (e.g by clamping or nut bolt fixing) to the cylinder when it is going to be filled; TARE S is TARE A plus the weight of the acetylene required to saturate the solvent at atmospheric pressure at 15 8C [EN 1800:1998] 3.2.2 for solvent free acetylene cylinders the tare weight is expressed by indicating a TARE F, where TARE F is TARE A minus the weight of solvent [EN 1800:1998] 3.2.3 if the tare weight as defined in 3.2.1 or 3.2.2 includes permanently attached parts other than the valve (normally the fixed guard), the total weight of these parts is indicated by stampmarking in front of the letters ªTAREº (e.g 2.3 TARE 75.1/75.6 KG) [EN 1800:1998] BSI 02-2000 3.5 porous mass single or multi-component material introduced or formed in the cylinder in order to fill it and which, due to its porosity, allows the absorption of the solvent/acetylene gas solution 3.6 approved porous mass mass which has a type approval (see EN 1800:1998) 3.7 residual gas the weight of acetylene in a cylinder returned for filling; it is defined: Ð for a cylinder with TARE A or TARE F as the entire weight of acetylene; Ð for a cylinder with TARE S as the entire weight of acetylene minus the weight of the saturation acetylene 3.8 solvent liquid which is absorbed by the porous mass and is capable of dissolving and releasing the acetylene [prEN 1800:1998] 3.9 acetylene solvent ratio the ratio of the maximum acetylene content to the specified weight of solvent content [EN 1800:1998] 3.10 working pressure the maximum settled pressure in bar (gauge) at a uniform temperature of 15 8C in a cylinder containing the maximum acetylene content and the specified weight of solvent content [EN 1800:1998] Page EN 1801:1998 Requirements for filling single acetylene cylinders Simultaneous filling of acetylene cylinders 4.1 General Single acetylene cylinders shall not be filled unless they meet the requirements of 4.2 to 4.4 Acetylene cylinders which are to be filled simultaneously shall have the same solvent or be separated by a protection system to prevent cross contamination with solvents Special care shall be taken with cylinders having different porous masses or high amounts of residual gas 4.2 Information The following information shall be available: Ð the identification of porous mass; Ð the specified type and content (in kilograms) of solvent; Ð the tare weight; Ð the total weight; Ð the periodic inspection status 4.3 Documentation For cylinders examined in 4.2 documentation shall be available to determine: Ð the filling conditions for the cylinder; Ð the residual gas and hence to obtain the solvent content Documentation may be in form of tables, graphics or other suitable means 4.4 Prefill check The prefill check of an acetylene cylinder and its valve shall ensure that they are both in a serviceable condition for filling Determination of solvent content 5.1 Before filling a cylinder the solvent content shall be determined by calculating the residual gas from pressure and temperature and using the appropriate documentation NOTE Acetylene cylinders need time to reach temperature equilibrium Special care should be taken, if the temperature is very low and the pressure is very high Calculation of acetylene in cylinders shall be in accordance with annex B (Solvent free cylinder see clause 8.) 5.2 If the weight of the incoming acetylene cylinder, after deduction of the residual gas, is below the appropriate tare weight, which is stamped on the cylinder, the loss of solvent shall be replaced Postfill check After the cylinder has been filled its weight shall be checked to ensure that it does not exceed the total weight (see 3.3) NOTE As the solvent content has been verified as correct in clause 5, there is no need for control of the working pressure of each individual cylinder because of the acetylene to solvent ratio established during the type approval Filling of solvent free acetylene cylinders 8.1 A solvent free cylinder shall not be filled with acetylene, unless it meets the following requirements: Ð it is clearly identified with the words ªsolvent freeº, stamped with the value of TARE F in kg and the letters ªFSº; Ð it is checked by weight that it was not previously filled with solvent; Ð the appropriate requirements of clause are fulfilled; Ð the working pressure is identified; Ð if it contains no residual acetylene, the cylinder shall be evacuated before filling Solvent free acetylene cylinders shall not be filled simultaneously with acetylene cylinders containing a solvent 8.2 After filling a solvent free acetylene cylinder, a postfill check shall be carried out in accordance with clause The settled pressure shall be checked after filling and shall not exceed the working pressure, which is stamped on the cylinder 5.3 If the weight of the incoming cylinder after allowing for residual gas content exceeds the appropriate tare weight, the cylinder shall be examined and the reason for overweight shall be determined before further handling 标准分享网 www.bzfxw.com 免费下载 BSI 02-2000 Page EN 1801:1998 Annex A (normative) Filling of acetylene cylinders not manufactured and approved in accordance with European Standards Acetylene cylinders which are not manufactured/approved in accordance with European Standards may be filled when the following checks are positive a) The porous mass with the corresponding solvent shall be of an approved type and clearly identified b) It shall be approved for the country of the filling station or in the country of usage or manufacture c) The requirements of clauses 4, 5, and shall be followed d) A calculation of the residual gas is possible and shall be carried out NOTE Alternatively the information for filling such cylinders should be obtained from the mass manufacturer or the organization responsible for the approval of the cylinder and mass Annex B (normative) Calculation of acetylene in cylinders The calculation of acetylene in cylinders containing either acetone or dimethylformamide (DMF) solvent is dependent upon the measurement of the pressure and temperature within the cylinder Measurement of the cylinder weight alone will only give the total weight of solvent and acetylene in the cylinder but will not indicate the shortfall of solvent or the acetylene content including saturation gas The acetylene-solvent ratio can be determined using the following equation: Ma 10f(p,t) = Ms 10f(p,t) where: Ma Ms f(p,t) is the weight of acetylene in kilograms (kg); is the weight of solvent in kilograms (kg); is a factor dependent upon pressure, temperature and solvent BSI 02-2000 Since the solubility of acetylene in acetone and DMF is different there are two equations for the calculation of f(p,t): For acetone the equation is: 712,88 t + 273,15 207,8 0,456 + t + 273,15 log10 p 4,194 + f(p,t) = For DMF the equation is: 504,36 t + 273,15 695,8 20,982 + t + 273,15 log10 p 3,630 + f(p,t) = where: p t is the pressure in bar absolute; is the temperature in 8C NOTE The specified weight of solvent content should be used in the equation for calculation of residual gas in the acetylene cylinders BS EN 1801:1999 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI Ð British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the 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