BS-5350-B4-1993 ISO-10364-1993.pdf
《BS-5350-B4-1993 ISO-10364-1993.pdf》由会员分享,可在线阅读,更多相关《BS-5350-B4-1993 ISO-10364-1993.pdf(8页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS 5350-B4: 1993 ISO 10364: 1993 Methods of test for Adhesives Part B4: Determination of pot life UDC 665.93:620.179.4 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:04:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5350-B4:1993 This British Standard, having been prepar
2、ed under the direction of the Adhesives Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 September 1993 BSI 09-1999 First published July 1976 Second edition September 1993 The following BSI references relate to the work on this standard
3、: Committee reference ADC/9 Draft for comment 90/56042 DC ISBN 0 580 22506 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Adhesives Standards Policy Committee (ADC/-) to Technical Committee ADC/9, upon which the following bodies were
4、represented: British Adhesives and Sealants Association British Plastics Federation British Railways Board British Steel Industry Centre for Adhesive Technology Chemical Industries Association Department of Trade and Industry (National Physical Laboratory) EEA (The Association of Electronics, Teleco
5、mmunications and Business Equipment Industries) Institute of Materials Ministry of Defence PIRA International SATRA Footwear Technology Centre Society of Motor Manufacturers and Traders Ltd. University of Bristol Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun she
6、ffieldun, na, Mon Dec 04 16:04:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5350-B4:1993 BSI 09-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Definition1 3Principle1 4Apparatus1 5Procedure1 6Expression of results2 7Test report2 Annex A (informative) Bi
7、bliography3 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:04:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5350-B4:1993 ii BSI 09-1999 National foreword This Part of BS 5350 has been prepared under the direction of the Adhesives Standards Policy Committee. It is identical with ISO 103
8、64:1993 Adhesives Determination of working life (pot life) of multi-component adhesives, published by the International Organization for Standardization (ISO). ISO 10364 was prepared by Subcommittee 11, of Technical Committee ISO/TC 61, Plastics, with the active participation and approval of the UK.
9、 This revision of BS 5350-B4 supersedes BS 5350-B4:1976 which is withdrawn. A British Standard does not purport 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 confe
10、r immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 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
11、 on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:04:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5350-B4:1993 BSI 09-19991 1 Scope This International Standard specifies a method of determining the working life of an adhesive. It is intended to determine wheth
12、er the working life conforms to the minimum specified working life required of an adhesive by viscosity tests or by bond strength tests or by both. This method is not suitable for determining the working life of a multi-component adhesive whose working life is very short, because a minimum amount of
13、 time is necessary to conduct the required testing. NOTE 1In general five minutes is considered the minimum working life of a multi-component adhesive suitable for testing by this method. 2 Definition For the purposes of this International Standard, the following definition applies. 2.1 pot life; wo
14、rking life the period of time during which an adhesive or resin, prepared for application, remains usable 3 Principle The working life of an adhesive is determined by measuring the viscosity and/or bond strength at specified intervals. The time at which the bond strength drops to a specified level a
15、nd/or a specified change in viscosity is obtained is considered the working life of the adhesive. 4 Apparatus 4.1 Beaker, squat form, 400 ml (or container of similar dimensions), with a wall thickness not exceeding 1 mm and made of a material that does not react with the adhesive. 4.2 Viscometer Any
16、 means of measuring the viscosity of the adhesive can be selected provided that it is suitable for the type of adhesive under test. NOTE 2A Brookfield viscosimeter or Tecam tester is suitable for that measurement. Disposable spindles are recommended in order to avoid damage to or loss of the spindle
17、s. 4.3 Test machine, of suitable capacity, equipped with self-aligning grips for holding the specimens, and capable of maintaining a specified rate of displacement of the grips. 4.4 Temperature-controlled bath, capable of maintaining the components at the appropriate application temperature or, if a
18、 range of application temperatures is given, at the upper limit of the range, to within 0,1 C. 4.5 Stopwatch 5 Procedure 5.1 Viscosity 5.1.1 At the start of the test, all the components shall be at the same temperature, which shall be reported. NOTE 323 C 2 C is commonly used. 5.1.2 Prepare a sample
19、 of the adhesive in accordance with the manufacturers instructions, and immediately place the prepared adhesive in the 400 ml beaker (4.1). NOTE 4The preferred amount of adhesive is 200 g, but other quantities may be used. 5.1.3 Record the time at the moment the adhesive is placed in the beaker and
20、is ready for use. Keep the beaker uncovered throughout the test. 5.1.4 Determine the viscosity of the freshly prepared adhesive, and after time intervals appropriate for covering the working life of the adhesive given in the adhesive manufacturers instructions for use. The time interval chosen shall
21、 be reported in the test report. NOTE 5The method described in ISO 25552 is suitable for viscosity determinations. 5.1.5 The working life of the adhesive, as determined by viscosity, shall be the total time elapsed between the time recorded when the adhesive was freshly prepared and the time at whic
- 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-5350-B4-1993 ISO-10364-1993 BS 5350 B4 1993 ISO 10364
链接地址:https://www.31doc.com/p-3771642.html