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    EN 12099-1997 en Plastics Piping Systems - Polyethylene Piping Materials and Components - Determination of Volatile Content《塑料管道系统 聚乙烯管材和组件 挥发含量的测定》.pdf

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    EN 12099-1997 en Plastics Piping Systems - Polyethylene Piping Materials and Components - Determination of Volatile Content《塑料管道系统 聚乙烯管材和组件 挥发含量的测定》.pdf

    1、STDlBSI BS EN -L2077-ENGL 2777 M lb24bb Obb457L 348 m BRITISH STANDARD Plastics piping systems - Polyethylene piping materials and components - Determination of volatile content BS EN 12099 : 1997 BS 2782 : Part 11 : Method 1103E : 1997 * * rn The European Standard EN 12099 : 1997 has the status of

    2、a British Standard ICs 23.040.20; 23.040.45; NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 12099 : 1997 direction of the Sector Board for Materiais and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 December 1997 Amd No.

    3、 O BSI 1997 National foreword D Calculate the volatile materiai content, m, of the test portion using the foliowing equation: b) number of test pieces (see 4.2). 3 Apparatus where: 3.1 Dying oven equivaient position for the cup(s) (see 3.2 and 6.4). is the mass in grams of the empty weighmg 3.2 A cy

    4、lindreal glass weighing cup, with a diameter cup and its lid; mg m1 is the mass in grams of the weighing cup and its lid plus the test portion; of 35 mm capable of containing a test piece (see 4.1), a minimum volume of 50 ml and a corresponding lid. 3.3 A desiccator. 3.4 An analytical balance or equ

    5、ivalent, capable of weighing to the nearest 0,l mg. m.2 is the mass in grams of the weighmg cup and its lid plus the residual material after 1 h at (105 f 2) “C. 4 Bst piece 4.1 Each test piece shail comprise an approximately 25 g portion of a sample representative of the materiai before moulding or

    6、 extrusion, as applicable, or cut in accordance with the referring standard from a cross section of a pipe or fitting. NOTE. If test samples utilize different sampling weights or are taken from different sources, e.g. raw material granulate or finished product, then there may be a difference in test

    7、 results obtained. This may depend on e.g. the surface aredmass ratio or the maximum thickness of material. To demonstrate correlation with results for granulate samples determined in accordance with this standard, the preparation of samples from finished product may have to be modified. 4.2 The num

    8、ber of test pieces shall be as specified in the referring standard. 7 Test report The test report shail include the following information: a) the reference to this standard and to the referring b) the complete identification of the test piece; c) the source and form of the material; d) the test temp

    9、erature; e) the number of test portions tested; f) the calculated volatile material content, in milligrams per kilogram (mgkg) for each test portion; g) any factors which may have affected the results, such as any incidents or any operating details not specified in this standare standard; h) the dat

    10、e of the test. 5 Procedure 6.1 Clean and dry a weighmg cup and its lid (3.2) until constant weight is achieved and store them in the desiccator (3.3) for at least 0,5 h at room temperature. 6.2 We the weighmg cup and its lid out of the desiccator and determine their combined mass, mo, to the nearest

    11、 0,l mg. Replace the lid in the desiccator. O BSI 1997 STD-BSI BS EN L2099-ENGL 1997 lbZqbb9 Obb1157b 92T BS EN 12099 : 1997 BS 2782 : Part 11 : Method 1103E : 1997 BSI 389 ChiswickHigh Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for prepar

    12、ing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal charter. Contract requirements A British Standard does not purport to include ail the necessary provisions of a contrad. Users of British Stan- are responsible for their

    13、correct application. 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 hc

    14、ljng an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the responsible technical committee, the identity of which can be found on the inside front cover. Tel: 0181 996 9000; Fax: 0181 996 7400. BSI offers members an individual updating service called PLUS whi

    15、ch ensures that subscribers automaticaily receive the latest editions of standards. Buying standards rders for ail BSI, international and foreign standards publications should be addressed to Customer Services, Sales Department at Chiswick Tel 0181 996 7000; Fax: 0181 996 7001. In response to orders

    16、 for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on nationai, European and international standards through its Library,

    17、 the Standardline Database, the BSI Information Technology Service (BITS) and its Technical Help to Exporters Service. Contact the Information Department at Chiswick Tel 0181 996 7111; Fax: 0181 996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substant

    18、ial discounts on the purchase price of standards. For details of these and other benefits contact Customer Services, Membership at Chiswick Tel: 0181 996 7002; Fax: 0181 996 7001. Copyright Copyright subsists in ail BSI publications. BSI also holds the copynght, in the UK, of the publications of the

    19、 international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means - electronic, photocopying, recording or otherwise - without prior written permission fro

    20、m BSI. This does not preclude the he use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose titan implementation then the prior written permission of BSI must be obtained permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained nom the Copyright Manager, BSI, 389 Chiswick High Road, London W4 4AL


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