BS ISO 1888-1997 Textile glass - Staple fibres or filaments - Determination of average diameter《纺织玻璃纤维 人造纤维或长丝 平均直径的测定》.pdf
《BS ISO 1888-1997 Textile glass - Staple fibres or filaments - Determination of average diameter《纺织玻璃纤维 人造纤维或长丝 平均直径的测定》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 1888-1997 Textile glass - Staple fibres or filaments - Determination of average diameter《纺织玻璃纤维 人造纤维或长丝 平均直径的测定》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS ISO 1888:1996 Implementation of ISO 1888:1996 Textile glass Staplefibres or filaments Determination of average diameter ICS 59.100.10BS ISO 1888:1996 This British Standard, having been prepared under the directionof the Sector Board for Materials and Chemicals, waspublished under
2、 the authorityof the Standards Boardand comes into effect on 15 January 1997 BSI 12-1998 The following BSI references relate to the work on this standard: Committee reference PRI/42 Draft for comment 88/37460 DC ISBN 0 580 26849 7 Committees responsible for this British Standard The preparation of t
3、his British Standard was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, upon which the following bodies were represented: BEAMA Ltd. British Plastics Federation Chemical Industries Association Department of the Environment (Building Research Establishm
4、ent) Department of Trade and Industry (National Physical Laboratory) European Resin Manufacturers Association Ministry of Defence Motor Industry Research Association RAPRA Technology Ltd. Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No. Date CommentsBSISO
5、1888:1996 BSI 12-1998 i Contents Page Committees responsible Inside front cover National foreword ii Foreword iii Text of ISO 1888 1BSISO 1888:1996 ii BSI 12-1998 National foreword This British Standard reproduces verbatim ISO 1888:1996 and implements it as the UK national standard. This British Sta
6、ndard is published under the direction of the Sector Board for Materials and Chemicals whose Technical Committee PRI/42 has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and ke
7、ep UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. A British Standard does not purp
8、ort 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 c
9、over, pages i and ii, theISO title page, pages ii to iv, 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 on theinside front cover.BSISO1888:1996 ii BSI 12-1998 Contents Page For
10、eword iii 1 Scope 1 2 Method A: Longitudinal profile 1 3 Method B: Transverse section 1 4 Expression of results 3 5 Test report 3 Figure 1 Example of assembly for moulding specimens 2BSISO1888:1996 BSI 12-1998 iii Foreword ISO (the International Organization for Standardization) is a worldwide feder
11、ation 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 subject for which a technical committee has been established has the right to be represented on that commit
12、tee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the tec
13、hnical committees 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. International Standard ISO 1888 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites a
14、nd reinforcement fibres. This second edition cancels and replaces the first edition (ISO 1888:1979), to which an alternative method referred to as the “longitudinal profile” method has been added.iv blankBS ISO 1888:1996 BSI 12-1998 1 1 Scope This International Standard specifies longitudinal-profil
15、e and transverse-section methods for determining the average diameter (i.e. the average value of actual diameters) of staple fibres or filaments in a textile glass product. This diameter must not be confused with the nominal diameter which is used in the designation of yarns and materials manufactur
16、ed from these yarns and corresponds to the average diameter but rounded to the nearest whole number. 2 Method A: Longitudinal profile 2.1 Principle Fibres or filaments placed in a liquid medium having a refractive index differing from that of the textile glass are viewed in profile under a microscop
17、e and the diameter measured. 2.2 Apparatus 2.2.1 Microscope, equipped with the following: An eye-piece with a built-in micrometer graticule, the eye-piece and objective together giving an overall magnification of at least 500 and preferably 1 000. The resolution of the microscope shall permit measur
18、ement to the nearest 0,5 m or better (see note 1). A system permitting lateral and rotational movement of the microscope stage. An illumination system. NOTE 1This system may be replaced by or used in conjunction with a microprojector on which specimens can be measured using a transparent scale (pref
19、erably a curved scale). The recommended type of microscope is one using plane-polarized light, and an illumination system with a Kohler light source and an Abbe condenser. A green filter may also be used to give better reading accuracy. 2.2.2 Micrometer scale, with 0,01 mm divisions, for calibration
20、 of the optical system. 2.2.3 Glass slide (thickness: 1,10 mm to 1,35 mm), and cover glass (thickness: 0,16 mm to 0,19 mm). The thickness of the cover glass shall be verified periodically. 2.2.4 Mounting fluid, with a refractive index different (but not too different) from that of the glass under ex
21、amination. Benzyl alcohol, methyl salicylate, a mixture of one part glycerol and two parts water are adequate media. 2.2.5 Razor blade or scissors 2.2.6 Muffle furnace, capable of maintaining a temperature of 625 C 25 C. 2.3 Procedure It is not always necessary to remove the size from the yarns unde
22、r examination. Nevertheless, yarns in which the fibres or filaments do not separate from each other in the mounting fluid shall have the size removed by burning off to bare glass at 625 C in a muffle furnace (2.2.6). 2.3.1 Set up the microscope (2.2.1) with the appropriate optical system and the mov
23、ing stage. Calibrate the optical system using the micrometer scale (2.2.2). 2.3.2 Prepare the specimen and the specimen holder as follows: Using a sharp cutting device (see 2.2.5), preparea specimen of fibres or filaments not exceeding 25 mm in length. Place the specimen on the glass slide (see 2.2.
24、3). Separate the fibres or filaments so that they are no longer in a compact bundle, but still essentially parallel to each other. Using a glass rod, place one drop of mounting fluid(2.2.4) on the slide so that it wets the specimen and cover with a cover glass (see 2.2.3). 2.3.3 Place the slide on t
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 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:
- BSISO18881997TEXTILEGLASSSTAPLEFIBRESORFILAMENTSDETERMINATIONOFAVERAGEDIAMETER 纺织 玻璃纤维 人造纤维 长丝 平均 直径

链接地址:http://www.mydoc123.com/p-585801.html