ISO-15848-1-2006.pdf
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1、 Reference number ISO 15848-1:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 15848-1 First edition 2006-01-15 Industrial valves Measurement, test and qualification procedures for fugitive emissions Part 1: Classification system and qualification procedures for type testing of valves Robinetterie indust
2、rielle Mesurage, essais et procdures de qualification pour missions fugitives Partie 1: Systme de classification et procdures de qualification pour essais de type des appareils de robinetterie ISO 15848-1:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes
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4、e 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 ha
5、s 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. ISO 2006 All rights reserved. Unless otherwise specified, no part of this publication may be
6、reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41
7、 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved -,-,- ISO 15848-1:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4
8、Abbreviations 3 5 Type test 4 5.1 Test conditions . 4 5.2 Test procedures 7 6 Performances classes 10 6.1 Classification criteria 10 6.2 Tightness classes. 10 6.3 Endurance classes . 11 6.4 Temperature classes 13 6.5 Examples of class designation . 14 6.6 Marking 14 7 Reporting. 15 8 Extension of qu
9、alification to untested valves . 16 Annex A (normative) Total leak rate measurement 17 Annex B (normative) Leak measurement using the sniffing method. 31 Annex C (informative) Derivation and graphs relating the stem diameter to leak rate. 40 Bibliography. 48 -,-,- ISO 15848-1:2006(E) iv ISO 2006 All
10、 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 subj
11、ect 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 (IE
12、C) 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 committ
13、ees 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
14、held responsible for identifying any or all such patent rights. ISO 15848-1 was prepared by Technical Committee ISO/TC 153, Valves, Subcommittee SC 1, Design, manufacture, marking and testing. ISO 15848 consists of the following parts, under the general title Industrial valves Measurement, test and
15、qualification procedures for fugitive emissions: Part 1: Classification system and qualification procedures for type testing of valves Part 2: Production acceptance test of valves ISO 15848-1:2006(E) ISO 2006 All rights reserved v Introduction The objective of this part of ISO 15848 is to enable cla
16、ssification of performance of different designs and constructions of valves to reduce fugitive emissions. This part of ISO 15848 defines type test for evaluation and qualification of valves where fugitive emissions standards are specified. The procedures of this part of ISO 15848 can only be used wi
17、th the application of necessary precautions for testing with flammable or inert gas at temperature and under pressure. -,-,- -,-,- INTERNATIONAL STANDARD ISO 15848-1:2006(E) ISO 2006 All rights reserved 1 Industrial valves Measurement, test and qualification procedures for fugitive emissions Part 1:
18、 Classification system and qualification procedures for type testing of valves 1 Scope This part of ISO 15848 specifies testing procedures, for evaluation of external leakage of valve stem seals (or shaft) and body joints of isolating valves and control valves intended for application in volatile ai
19、r pollutants and hazardous fluids. End connection joints, vacuum application, effects of corrosion and radiation are excluded from this part of ISO 15848. This part of ISO 15848 concerns classification system and qualification procedures for type testing of valves. 2 Normative references The followi
20、ng 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 5208, Industrial valves Pressure testing of valves 3 Ter
21、ms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 body seals any seal in pressure containing part except stem (or shaft) seals 3.2 Class a convenient round number used to designate pressure-temperature ratings NOTE It is designated by the word “Clas
22、s” followed by the appropriate reference number from the following series: Class 125, Class 150, Class 250, Class 300, Class 600, Class 900, Class 1 500, Class 2 500. 3.3 concentration ratio of test fluid volume to the gas mixture volume measured at the leak source(s) of the test valve NOTE The conc
23、entration is expressed in ppmv (parts per million volume), which is a unit deprecated by ISO (1 ppmv = 1 ml/m3 = 1 cm3/m3). -,-,- ISO 15848-1:2006(E) 2 ISO 2006 All rights reserved 3.4 control valve power operated device which changes the fluid flow rate in a process control system and which consist
24、s of a valve connected to an actuator that is capable of changing the position of a closure member in the valve in response to a signal from the controlling system 3.5 fugitive emission any chemical or mixture of chemicals, in any physical form, which represents an unanticipated or spurious leak fro
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