EN 27841-1991 en Automatic Steam Traps - Determination of Steam Loss - Test Methods《自动疏水阀 蒸汽损失的测定 试验方法(ISO 7841-88)》.pdf

1、. CEN EN*Z7841 91 = 3404589 O038679 3 = EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM EN 27841:1991 October 1991 UDC 621 1646.9.057:621.186.1: 620.1 Oescriptbrs : Industrial valves, traps : drainage, water vapor, steam, tests, measurements, head loses English version Automatic steam traps - De

2、termination of stean loss - Test methods (IS0 7841:1988) Purgeurs automatiques de vapeur deau - Kondensatableiter - Bestimmung des Dtermination de la perte de vapeur - Dampfverlustes - Prfverfahren (IS0 Mthodes dessai (IS0 7841:1988) 7841:1988) This European Standard was approved by CEN on 1991-09-3

3、0 and is identical to the IS0 standard as referred to. CEN members are bound to comply with the CENICENELEC 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

4、concerning such national standards 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

5、 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzer

6、land and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, 8-1050 Brussels (cl CEN 1991 Copyright reserved to all CEN members Ref. No. EN 27841:1991 E Page 2 EN 27841:1991 Foreword u1 the,

7、 proposai of the Technical Caamittee CEN / TC 6 9 “Industrial valves“ BT has decided by resolution C67/1990 to submit the IntexnationaL Stanard IS0 7841:1988 : Automatic steam traps - Determination of steam loss - Test me thpis to Formal Vote, This European Standard EN27841 was approved by CE“ on 19

8、91-08-0r According to the rrrimn CER/- Rules, the foll countries are bound to -1-t this European Standard : Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlans, IJarway, Portugal, Spain, Sueden, Switzerland and United Kingdoa, Endorseent The text of the was approved by . ,