BS-6128-4-1981.pdf
《BS-6128-4-1981.pdf》由会员分享,可在线阅读,更多相关《BS-6128-4-1981.pdf(10页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS 6128-4: 1981 Industrial laminated rods and tubes based on thermosetting resins Part 4: Specification for rectangular moulded rods UDC 678.072:678 422 + 678 462 419 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:20:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6128-4
2、:1981 This British Standard, having been prepared under the direction of the Plastics Standards Committee, was published under the authority of the Executive Board and comes into effect on 30 September 1981 BSI 12-1999 The following BSI references relate to the work on this standard: Committee refer
3、ence PLC/41 Draft for comment 80/50436 DC ISBN 0 580 12201 8 Cooperating organizations The Plastics Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: British Plastics Federation* British Resin Manufacturers Association Chem
4、ical Industries Association* Department of Industry (Chemicals and Textiles) Department of the Environment (PSA) Department of the Environment (Building Research Establishment) Department of Trade (Metrology, Quality Assurance, Safety and Standards Division) Electrical and Electronic Insulation Asso
5、ciation (BEAMA)* Electrical Installation Equipment Manufacturers Association (BEAMA) Engineering Equipment Users Association Era Technology Ltd.* Institution of Production Engineers Ministry of Defence* Plastics and Rubber Institute Post Office Royal Institute of British Architects Rubber and Plasti
6、cs Research Association of Great Britain Society of Chemical Industry Society of Motor Manufacturers and Traders Limited* The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted with the preparation of t
7、his British Standard: British Paper and Board Industry Federation (PIF) British Shipbuilders Electronic Components Industry Federation Electronic Engineering Association Society of British Aerospace Companies Limited Telecommunication Engineering and Manufacturing Association (TEMA) Amendments issue
8、d since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:20:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6128-4:1981 BSI 12-1999i Contents Page Cooperating organizationsInside front cover Forewordii 1Scope1 2References1 3Cross sections1 4Toleran
9、ces on side lengths1 5Departure from straightness1 6Performance requirements1 Table 1 Cross sections of rectangular moulded rods1 Table 2 Maximum deviation from nominal side length of a cross section1 Table 3 Performance requirements2 Table 4 Typical densities of rods3 Publications referred toInside
10、 back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:20:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6128-4:1981 ii BSI 12-1999 Foreword This Part of this British Standard has been prepared under the direction of the Plastics Standards Committee. It specifies requirements for re
11、ctangular moulded rods and should be read in conjunction with BS 6128-1, which specifies the system of classification and the methods of test referred to in this Part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsibl
12、e 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 cover, pages i and ii, pages 1 to 4, an inside back cover and a back cover. This standard has been up
13、dated (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, Wed Dec 06 15:20:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6128-4:1981 BSI 12-19991 1 Scope This Part of th
14、is standard specifies dimensions and performance requirements for rectangular moulded laminated rods based on thermosetting resins. Typical values of density are given in Appendix A. The standard covers both rods of natural colour and rods containing colouring matter or other additives. 2 References
15、 The titles of the publications referred to in this standard are listed on the inside back cover. 3 Cross sections The cross sections of rectangular moulded rods shall be within the ranges given in Table 1. Table 1 Cross sections of rectangular moulded rods NOTE 1The PF CC types are based on a fine,
16、 medium or coarse weave of cotton or cotton/synthetic fibre mixture as follows: The numbers of threads in the warp and weft of these fabrics fall usually, but not necessarily, into the following ranges: In general, the finer the weave used, the smoother the finish obtained in subsequent machining op
17、erations. NOTE 2The preferred nominal side lengths, in millimetres, are 3, 4, 5, 6, 8, 10, 12, 14, 16, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85 or 90, as appropriate for each type of rod. 4 Tolerances on side lengths When measured in accordance with clause 6 of BS 6128-1:1981, the side
18、 length of a cross section of a rod shall not deviate from the nominal length by more than the appropriate value given in Table 2. Table 2 Maximum deviation from nominal side length of a cross section 5 Departure from straightness When measured in accordance with clause 6 of BS 6128-1:1981, the depa
19、rture from straightness of a rod, in millimetres, shall not exceed 6.0L2, where L is the length of the rod in metres. 6 Performance requirements 6.1 Axial electric strength, water absorption, insulation resistance and flexural strength. When tested by the method specified in the relevant clause of B
20、S 6128-1:1981, the axial electric strength, water absorption, insulation resistance and flexural strength of a rod shall be as shown in Table 3. 6.2 Appearance. Rods shall have a smooth ground finish. The side surfaces of the rods shall be uniformly and smoothly finished and free from obvious signs
- 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 6128 1981
链接地址:https://www.31doc.com/p-3772119.html