BS-EN-20638-1993 ISO-638-1978.pdf
《BS-EN-20638-1993 ISO-638-1978.pdf》由会员分享,可在线阅读,更多相关《BS-EN-20638-1993 ISO-638-1978.pdf(8页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 20638:1994 ISO 638:1978 Incorporating Amendment No. 1 Method for Determination of dry-matter content of pulps The European Standard EN 20638:1993 has the status of a British Standard UDC 676.16:620.1:543.814 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:24:08 GMT+0
2、0:00 2006, Uncontrolled Copy, (c) BSI BS EN 20638:1994 This British Standard, having been prepared under the direction of the Paper Standards Committee, was published under the authority of the Executive Board and comes into effect on 29 February 1980 BSI 12-1999 First published October 1969 First r
3、evision February 1980 The following BSI references relate to the work on this standard: Committee reference PAS/11 Draft for comment 77/64189 DC ISBN 0 580 11202 0 Cooperating organizations The Paper Standards Committee, under whose direction this British Standard was prepared, consists of represent
4、atives from the following Government department and professional and industrial organizations: British Paper and Board Industry Federation (PIF)* British Printing Industries Federation* Envelope Makers and Manufacturing Stationers Association* Her Majestys Stationery Office* Institute of Trading Sta
5、ndards Administration National Association of Paper Merchants Pira (The Research Association for the Paper and Board, Printing and Packaging Industries)* Royal Institute of Public Health and Hygiene The organizations marked with an asterisk in the above list, together with the following, were direct
6、ly represented on the committee entrusted with the preparation of this British Standard: British Wood Pulp Association Chemical Industries Association Fibreboard Packing Case Manufacturers Association Man-made Fibres Producers Committee Ministry of Defence Post Office Society of British Printing Ink
7、 Manufacturers University of Manchester, Institute of Science and Technology Amendments issued since publication Amd. No.Date of issueComments 7807February 1994Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:24:08 GMT+00:00 2006, Uncontrolled Copy, (c)
8、 BSI BS EN 20638:1994 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 206383 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:24:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20638:1994 ii BSI 12-1999 National foreword Th
9、is British Standard has been prepared under the direction of the Paper Standards Committee. It is identical with ISO 638 “Pulps Determination of dry matter content”, which was developed by Technical Committee ISO/TC 6, Paper, board and pulps, and was published by the International Organization for S
10、tandardization (ISO). This International Standard cancels and replaces ISO Recommendation R 638:1967, of which it constitutes a technical revision. BS 4502 was first published in 1969 and was technically identical with ISO Recommendation R 638:1967. The present version has been revised and the chang
11、es include alteration of the temperature, of the oven used for drying pulp, from 103 2 C to 105 2 C. In addition, a revised method of reporting test results is included. This present edition supersedes the edition published in 1969, which is therefore withdrawn from publication. In 1993 the European
12、 Committee for Standardization (CEN) accepted ISO 638:1988 as European Standard EN 20638:1993. As a consequence of implementing the European Standard this British Standard is renumbered as BS EN 20638:1994 and any reference to BS 4502 should be read as a reference to BS EN 20638. Terminology and con
13、ventions. The text of the International Standard has been approved as suitable for publication, without deviation, as a British Standard. Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following. Wherever the word
14、s “International Standard” appear, referring to this standard, they should be read as “British Standard”. The comma has been used throughout as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. A British Standard does not purport
15、 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 cove
16、r, pages i and ii, the EN title page, pages 2 and 3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:24:08
17、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 20638 September 1993 UDC 676.16:620.1:543.814 Descriptors: Paper, paper pulps, cellulosic pulps, chemical analysis, determination of content, dry matter, dehydration method English version Pulps Determin
18、ation of dry matter content (ISO 638:1978) Ptes Dtermination de la teneur en matires sches (ISO 638:1978) Zellstoffe Bestimmung des Trockengehaltes (ISO 638:1978) This European Standard was approved by CEN on 1993-09-06. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
19、 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 national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Stand
20、ard 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 stand
21、ards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Cent
22、ral Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 20638:1993 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:24:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 20638:1993 2 BSI 12-1999 Foreword This European Standard has been taken o
23、ver by CEN/TC 172, Pulp, paper and board, from the work of ISO/TC 6, Paper, board and pulps, of the International Organization for Standardization (ISO). The document was submitted to formal vote and adopted by CEN as a European Standard without any modification. This European Standard shall be give
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS-EN-20638-1993 ISO-638-1978 BS EN 20638 1993 ISO 638 1978
链接地址:https://www.31doc.com/p-3740757.html