1、BRITISH STANDARD Adhesives - Test method for shear strength of adhesive bonds (IS0 9653:1998) The European Standard EN IS0 96532000 has the status of a British Standard ICs 83.180 1653:ZOOO NO COPYING WII“0UT BSI PERMISSION EXCEPT AS PERMITTED BY COPYBIGHT LAW _ _ STD-BSI BS EN IS0 9653-ENGL 2000 Lb
2、24hh9 0839947 TL5 BS EN IS0 9653:ZOOO been prepared under the dkction of the Sector Amd.No. Date Committee for Materiais and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 October ZOO0 O BSI 12000 National foreword Comments This British Standard i
3、s the official English language version of EN IS0 9653:2000. It is identical with IS0 9653 1998. It supersedes BS EN 29653 1994 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PlU/52, Adhesives, which has the responsibility to: - aid enquirers to unde
4、rstand the text; - present to the responsible internalional/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed - monitor related international and European developments and promulgate them in the UK A list of organizations represented
5、on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to intemational publications with their corresponding European publications. The British Standards
6、which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Intedonal Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does no
7、t purport to include all the necessary provisions of a contsact. 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 f
8、ront cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, page ii, pages 1 to 6, the annex ZA page and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued ISBN O 580 36592 1 STD-BSI BS EN IS0 qb53-ENGL 2000 I Lb24bb9 08
9、79948 951 I EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 9653 July 2000 ICs 83.1 80 Supersedes EN 29653: 1994 English version Adhesives - Test method for shear impact strength of adhesive bonds (IS0 9653: 1 998) Adhsifs - Essai de tenue au choc par cisaillement du joint adhsif (IS0 9653:
10、1998) Klebstoffe - Prfverahren fr die Scherschlagfestigkeit von Klebungen (IS0 9653:1998) This European Standard was approved by CEN on 9 June 2000. CEN members are bound to comply with the CENEENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
11、 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 Standard exists in three official versions (English, French, German). A versio
12、n 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 standards Wies of Austria, Belgium, Czech Republic, Denmark, Finland, France,
13、Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Secretariat: rue de Stassart, 36 6-1050 Brussels Q 2000
14、CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 9653:2000 E Foreword The text of the International Standard from Technical Committee ISOTC 61 “Plastics“ of the International Organization for Standardization (ISO) has been taken
15、 over as an European Standard by Technical Committee CENTTC 193 “Adhesives“, the secretariat of which is held by AENOR. This European Standard supersedes EN 29653:1994. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorseme
16、nt, at the latest by January 2001, and conflicting national standards shall be withdrawn at the latest by January 2001. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, C
17、zech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 9653:1998 has been approved by CEN as a European Standard wit
18、hout any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). STD-BSI BS EN IS0 9b53-ENGL 2000 M Lb24bb9 0879950 50T EN IS0 9663:2000 INTERNATIONAL STANDARD IS0 9653 Second edition 1998-08-01 Adhesives - Test method for shear impact strength of adhe
19、sive bonds Adhsifs - Essai de tenue au choc par cisaillement du joint adhsif Reference number IS0 9653: 1998( E) STDOBSI BS EN IS0 9653-ENGL 2000 W 3624669 0879953 446 W EN IS0 9653:2000 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards
20、 bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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 committee. International organiza
21、tions, governmental and non- governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circ
22、ulated 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 IS0 9653 was prepared by Technical Committee ISOlTC 61, Plastics, Subcommittee SC 11, Products. This second edition cancels
23、and replaces the first edition (IS0 9653:1991). In addition to normative references, requirements have been added for the preparation of plastic-to-plastic specimens prior to bonding (8.1.3), and the requirements for specimen conditioning (9.1) and for the reporting of failure patterns (1 0.4.3) cha
24、nged. II STD*BSI BS EN IS0 9b53-ENGL 2000 W Lb24bb9 0879952 382 W EN IS0 9653:ZOOO Adhesives - Test method for shear impact strength of adhesive bonds 1 Scope 1.1 This International Standard specifies a method for the determination of the comparative impact value of adhesive bonds in shear, when tes
25、ted on standard specimens, and using specified conditions of preparation, conditioning and testing. 1.2 The method is intended to be used for wood-to-wood or metal-to-metal bonds, but may be extended to cover plastics-to-plastics bonds as well as bonds between combinations of these materials. 2 Norm
26、ative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this Inter
27、national Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 291 :1997, Plastics - Standard atmospheres for conditioning and testing. IS
28、0 4588:1995, Adhesives - Guidelines for the surface preparation of metals. IS0 9142:1990, Adhesives - Guide to the selection of standard laboratory ageing conditions for testing bonded joints. IS0 10365:1992, Adhesives - Designation of main failure patterns. IS0 13895:1996, Adhesives - Guidelines fo
29、r the surface preparation of plastics. 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 impact value: Energy absorbed by a specimen of standard design when sheared by a single blow of a testing-machine hammer. The impact value is expressed in joules
30、 per square metre. 4 Principle The impact value is determined by using a pendulum-type impact machine on a metal-to-metal or wood-to-wood specimen. 1 - STDeBSI BS EN IS0 9b53-ENGL 2000 1111 Lb2qbb9 0879953 219 m EN IS0 9653:2000 5 Apparatus 5.7 Pendulum-type impact machine, with a impact-head veloci
31、ty of 3,4 m/s, comprising the elements specified in 5.1 .I to 5.1.3. 5.1.1 Impact head, with a flat striking face slightly wider than the specimen and aligned to strike the specimen full- face. 5.1.2 Specimen-holding fixture, as shown in figure 1. The fixture illustrated is not always suitable for u
32、se with all impact machines and vices. Dimensions and design of the fixture may be varied as required for adaptation to machines and vices available, provided the following general requirements are met: The fixture shall be machined from a solid piece of steel and solidly bolted to the base of the t
33、esting machine. Corners shall be drilled to ensure that the specimen sets flush against the retaining end of the fixture. The drilled corners are provided to minimize dirt collection at the corners which could hold the end of the specimen away from the face of the fixture. The fixture shall be provi
34、ded with a screw to tighten the specimen in the fixture to minimize the tendency of the specimen to overturn when struck. A metal plate may be placed between the end of the block and the end of the screw when non-metallic adherends are used. The fixture shall be so located that the specimen will be
35、struck at the point of maximum head velocity. Dimensions in millimetres Mounted specimen Impact face of specimen Jig Clamp screw Part of testing machine ,- Corner drilling Figure 1 - Adapter fixture for impact machines 2 - STD*BSI BS EN IS0 9653-ENGL 2000 lib24669 0879954 li55 = EN IS0 9653:2000 5.1
36、.3 Vice or bolts, to hold the fixture firm and immobile under the stress of the testing-machine hammer. The total height of the vice fixture and specimen shall be such that the lower edge of the striking face of the impact head strikes the specimen as near the adhesive line as possible, preferably w
37、ithin 0,80 mm. Ordinarily, the distance between the top of the jaws of the vice of the machine and the bottom of the striking face of the head is 22 mm. The proper height of the specimen may be obtained by adjusting its height in the fixture. NOTE - Additional information on impact-testing machines
38、and their calibration may be found in IS0 178:1993, Plastics - Defemination of flexuralproperties, and IS0 179 (both parts), Plastics - Defemination of Charpy impact properties. 5.2 Conditioning chamber, capable of maintaining a relative humidity of (50 f 5) % at 23 OC f 2 “C. NOTE - A saturated sol
39、ution of calcium nitrate will give approximately 51 % relative humidity at the test temperature. 6 Specimens 6.1 The specimen for metal-to-metal adhesives shall conform to the dimensions given in figure 2a) whenever possible. In cases where this specimen cannot be fractured in the testing machine av
40、ailable, the dimensions of the 25 mm by 25 mm block may be reduced to a smaller square, keeping the dimensions of the 25 mm by 45 mm block constant. The dimensions of the specimen and bonded area shall be clearly stated in the test report (clause 13). In any case, it is desirable that the specimen s
41、ize be such as to give impact strengths that fall somewhere near the middle range of the testing machine, since readings in the highest and lowest ranges are often unreliable. The specimen shall be assembled in such a way that the face receiving the impact load is at the point of maximum velocity of
42、 the impact head. The impact face of the specimen shall be square and flat, perpendicular to the plane of the bond, and parallel to the striking face of the pendulum. Tests on adhesives with high impact strength should be conducted on steel to minimize deformation. Specimens may be re-used after tes
43、ting, provided that the face receiving the impact is not deformed. 6.2 Specimens for wood-to-wood adhesives shall conform to the dimensions shown in figure 2b). The specimens shall be prepared by bonding blocks 10 mm thick by 25 mm wide, of convenient length, to blocks 20 mm thick by 45 mm wide, of
44、the same convenient length, where the 25 mm and 45 mm dimensions, in each case, are those in the direction of the grain. Specimens, each 25 mm in width, may then be cut from the bonded assembly by cutting across the long dimension, in the grain direction. Wood having a minimum specific gravity of 0,
45、65 based on oven- dry mass and volume shall be selected (see the note). These blocks shall be of straight grain and free from defects, including knots, birdseye, short grain, decay, and any unusual discolorations within the test area. The blocks shall be at the equilibrium moisture content recommend
46、ed by the manufacturer of the adhesive. In the absence of such recommendation, the moisture content shall be from 10 % to 12 %, based on oven-dry mass as determined on representative samples (see the note). Just prior to bonding, the blocks shall be surfaced, preferably with a hand- feed jointer, an
47、d then weighed and assembled in pairs so that blocks of approximately the same specific gravity are bonded together. The surfaces shall remain unsanded and shall be free from dirt. Blocks shall be bonded as described in clause 8, after which specimens conforming to figure 2b) shall be prepared. NOTE
48、- Suitable woods are listed in annexB o ISO6237:1987, Adhesives - Wood-to-wood adhesive bonds - Determination of shear strength by tensile loading. In this annex, the moisture content determination process is described as well. 3 sTD.BSI BS EN IS0 9b53-ENGL 2000 B lb24669 0879955 093 B EN IS0 965320
49、00 Dimensions in millimetres 25t0.1 , Impact face 25 f 0.1 m 45 .t 0.1 a) Metal-to-metal spectmen t Impact face -i/- 25 t 0.1 line I- 45 * 0.1 b) Wood-to-wood specimen showing grain direction Figure 2 - Block shear impact specimen 7 Number of specimens 7.1 At least 1 O specimens shall be tested for each adhesive in the case of metal-to-metal specimens. 7.2 At least 20 specimens shall be tested, representing at least four different joints, in the case of wood-to-wood specimens. 7.3 Specimens that break at some obviously fortuitous flaw remote from
