BS ISO 2782-1-2016 Rubber vulcanized or thermoplastic Determination of permeability to gases Differential-pressure methods《硫化橡胶或热塑性橡胶 透气性的测定 差压法》.pdf
《BS ISO 2782-1-2016 Rubber vulcanized or thermoplastic Determination of permeability to gases Differential-pressure methods《硫化橡胶或热塑性橡胶 透气性的测定 差压法》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 2782-1-2016 Rubber vulcanized or thermoplastic Determination of permeability to gases Differential-pressure methods《硫化橡胶或热塑性橡胶 透气性的测定 差压法》.pdf(30页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationBS ISO 2782-1:2016Rubber, vulcanized orthermoplastic Determinationof permeability to gasesPart 1: Differential-pressure methodsBS ISO 2782-1:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 2782-1:2016. Itsupersedes BS ISO 2782-1:20
2、12 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/22, Testing and analysis of rubber.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprov
3、isions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 84149 1ICS 83.060Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published un
4、der the authority of theStandards Policy and Strategy Committee on 30 April 2016.Amendments issued since publicationDate Text affectedBS ISO 2782-1:2016 ISO 2016Rubber, vulcanized or thermoplastic Determination of permeability to gases Part 1: Differential-pressure methodsCaoutchouc vulcanis ou ther
5、moplastique Dtermination de la permabilit aux gaz Partie 1: Mthodes pression diffrentielleINTERNATIONAL STANDARDISO2782-1Second edition2016-04-15Reference numberISO 2782-1:2016(E)BS ISO 2782-1:2016ISO 2782-1:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Sw
6、itzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be
7、requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 2782-1:2016ISO 2782-1:2016(E)Foreword vIntro
8、duction vi1 Scope . 12 Normative references 13 Terms and definitions . 24 Principle 25 Pressure sensor method . 25.1 Apparatus 25.2 Calibration 45.3 Test gas 45.4 Test pieces . 55.4.1 Shape and dimensions 55.4.2 Preparation . 55.4.3 Number of test pieces 55.4.4 Measurement of thickness. 55.4.5 Time
9、interval between forming and testing . 55.5 Conditioning 55.6 Test conditions 55.7 Gas transmission area . 55.8 Procedure 65.9 Calculation and expression of results 75.9.1 Gas transmission rate 75.9.2 Gas permeability coefficient 85.9.3 Gas diffusion coefficient 85.9.4 Gas solubility coefficient . 8
10、6 Simplified pressure sensor method . 86.1 Apparatus 86.1.1 Test cell . 96.1.2 Test piece support 96.1.3 Two pressure sensors 96.1.4 Test gas supply reservoir 96.1.5 Temperature sensor 96.2 Calibration . 106.3 Test gas . 106.4 Test pieces 106.4.1 Shape and dimensions .106.4.2 Preparation 106.4.3 Num
11、ber of test pieces .106.4.4 Measurement of thickness 106.4.5 Time interval between forming and testing 106.5 Conditioning . 106.6 Test conditions . 106.7 Gas transmission area 106.8 Procedure . 106.9 Calculation and expression of results. 117 Gas-chromatographic method .117.1 Apparatus . 117.2 Calib
12、ration . 127.3 Test gas . 137.4 Carrier gas 137.5 Test pieces 137.5.1 Shape and dimensions .13 ISO 2016 All rights reserved iiiContents PageBS ISO 2782-1:2016ISO 2782-1:2016(E)7.5.2 Preparation 137.5.3 Number of test pieces .137.5.4 Measurement of thickness 137.5.5 Time interval between forming and
13、testing 137.6 Conditioning . 137.7 Test conditions . 137.8 Gas transmission area 137.9 Calibration curve 137.10 Procedure . 137.11 Calculation and expression of results. 147.11.1 Gas transmission rate .147.11.2 Gas permeability coefficient . 158 Test report 15Annex A (normative) Calibration schedule
14、 17iv ISO 2016 All rights reservedBS ISO 2782-1:2016ISO 2782-1:2016(E)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 technic
15、al 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 wi
16、th the International Electrotechnical Commission (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
17、for the different types of ISO documents 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 righ
18、ts. ISO shall not be held responsible for 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
19、 document is information given for the 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
20、Trade (TBT), see the following URL: Foreword Supplementary information .The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 2, Testing and analysis.This second edition cancels and replaces the first edition (ISO 2782-1:2012), which has been technical
21、ly revised. A new Clause on simplified pressure sensor method has been added (see Clause 6).ISO 2782 consists of the following parts, under the general title Rubber, vulcanized or thermoplastic Determination of permeability to gases: Part 1: Differential-pressure methods Part 2: Equal-pressure metho
22、d ISO 2016 All rights reserved vBS ISO 2782-1:2016ISO 2782-1:2016(E)IntroductionThe measurement of the permeability of rubber to gases is important in the evaluation of compounds for products such as inner tubes, tubeless-tyre liners, hoses, balloons and other gas-containing products, as well as sea
23、ls and diaphragms. The measurement is also of theoretical importance in the study of the characteristics of gas diffusion and gas solubility in relation to polymer structure.This part of ISO 2782 proposes three different methods for the determination of the permeability to gases of vulcanized or the
24、rmoplastic rubber under a differential partial pressure, which are pressure sensor method which allows a complete characterization of a material, simplified pressure sensor method which is appropriate when only the gas permeability coefficient is needed (routine control, specification verification,
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