BS EN 1841-1999 Adhesives - Test methods for floor coverings and wall coverings - Determination of dimensional changes of a linoleum floor covering in contact with an adhesive《胶粘剂 .pdf

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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1841:1999 The Europ

2、ean Standard EN 1841:1998 has the status of a British Standard ICS 83.180 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Adhesives Test methods for floor coverings and wall coverings Determination of dimensional changes of a linoleum floor covering in contact with an adhesive

3、BS EN 1841:1999 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 March 1999 BSI 03-1999 ISBN 0 580 30880 4 Amendments issued since publication

4、Amd. No. Date Text affected National foreword This British Standard is the English language version of EN 1841:1998. The UK participation in its preparation was entrusted to Technical Committee PRI/52, Rubber compounding ingredients, which has the responsibility to: aid enquirers to understand the t

5、ext; present to the responsible 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 on this committee can be obt

6、ained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find”

7、facility of the BSI Standards Electronic Catalogue. 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 confer immunity from legal ob

8、ligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de

9、 Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1841:1998 E EUROPEAN STANDARD EN 1841 NORME EUROPE ENNE EUROPA ISCHE NORM October 1998 ICS 83.180 Descriptors: adhesives, glueing, floor coverings,

10、linoleum, tests, measurements, dimensional stability, specimen preparation English version Adhesives Test methods for adhesives for floor coverings and wall coverings Determination of dimensional changes of a linoleum floor covering in contact with an adhesive Adhe sifs Me thodes dessais pour adhe s

11、ifs pour reve tements de sols et reve tements muraux De termination des variations dimensionnelles dun reve tement en linole um en contact avec un adhe sif Klebstoffe Pru fverfahren fu r Klebstoffe fu r Boden- und Wandbela ge Bestimmung der Maba nderung eines Linoleumbodenbelages im Kontakt mit eine

12、m Klebstoff This European Standard was approved by CEN on 9 October 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliogr

13、aphical 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 version in any other language made by translation under the responsibility of a

14、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 bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norwa

15、y, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1841:1998 BSI 03-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 193, Adhesives, the Secretariat of which is held by AENOR. This European Standard shall be given the status of a national standar

16、d, either by publication of an identical text or by endorsement, at the latest by April 1999, and conflicting national standards shall be withdrawn at the latest by April 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are boun

17、d to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative referen

18、ces 3 3 Definitions 3 4 Principle 3 5 Safety 3 6 Apparatus and materials 3 7 Preparation of test specimens 4 8 Test procedure 6 9 Evaluation and expression of results 6 10 Test report 6Page 3 EN 1841:1998 BSI 03-1999 Introduction This test is designed as a laboratory test to show the change in dimen

19、sions of a linoleum floorcovering in the early stages of bonding with an adhesive. Glass was chosen as an impervious substrate to maximise the effect. This test does not necessarily reproduce the effects which occur on porous substrates such as in practical site conditions. 1 Scope This European Sta

20、ndard specifies a test method to measure the dimensional changes of a linoleum floorcovering whilst being adhered to a glass substrate. This method is to be used in conjunction with other test methods and not used solely to determine the suitability of a particular adhesive/linoleum combination. 2 N

21、ormative references This European Standard incorporates, by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references subsequent amendments to, or revisio

22、ns of any of these publications apply to this European Standard only when incorporated in it by amendment or revisions. For undated reference the latest edition of the publication referred to applies. EN 548, Resilient floor coverings Specification for plain and decorative linoleum. EN 923, Adhesive

23、s Terms and definitions. EN 1066, Adhesives Sampling. EN 1067, Adhesives Examination and preparation of samples for testing. ISO 554, Standard atmospheres for conditioning and/or testing Specifications. 3 Definitions For the purposes of this standard, the definitions in accordance with EN 923 and th

24、e following definitions apply. 3.1 adhesives for linoleum floorcoverings adhesives which are intended to produce firm and durable bonds between linoleum and various substrates 3.2 linoleum product produced by calendering a homogeneous mixture of linoleum cement, cork and/or woodflour, pigments and i

25、norganic filler onto a fibrous backing. The product is then converted into its final form by an oxidative curing process as described in EN 548 3.3 linoleum cement binder in linoleum, consisting of a mixture of linseed oil and/or other vegetable drying oils, rosin and normal drying oil catalysts whi

26、ch is converted to a semi-elastic mass by an oxidative curing process as described in EN 548 4 Principle Indication of the dimensional changes which occur during the drying out process of the adhesive, i.e. in the early stages of an installation. 5 Safety Persons using this standard shall be familia

27、r with normal laboratory practice. This standard does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish safety and health practices and to ensure compliance with any European and national regulatory conditions. 6 Appara

28、tus and materials 6.1 Adhesive applicator, serrated trowel with notch size as specified by the adhesive manufacturer. 6.2 Roller, width (60 1) mm, diameter (92 1) mm and total mass (3,5 0,01) kg with handle at 908 to the axis (see Figure 1). 6.3 Three glass plates, for each adhesive under test. Thic

29、kness at least 6 mm. Dimensions 300 mm3 300 mm or 350 mm3 350 mm. 6.4 Suitable measuring device, capable of measuring to an accuracy of 0,01 mm over a length either 200 mm or 250 mm, e.g. elongation meter or other. 6.5 Three linoleum test pieces, 250 mm3 250 mm or 300 mm3 300 mm for each adhesive un

30、der test. 6.6 Suitable adhesive, for fixing gauge studs to the linoleum surface if required by the measuring method.Page 4 EN 1841:1998 BSI 03-1999 Figure 1 Roller 6.7 Self adhesive paper labels, when using the travelling microscope method. 6.8 Square metal plate, of uniform thickness (approx. 10 mm

31、) with dimensions 10 mm less than the distance between the reference points, producing a load of 5 kg. 7 Preparation of test specimens Ensure that all the glass plates are clean and free from dust, grease or other contaminants. Place the test pieces in a 508C oven for 24 h to form a stack of pairs w

32、here the upper surface of one piece is in contact with the upper surface of its partner. Place a uniform load of 5 kg on top of the stack. Remove from the oven and cool in a standard atmosphere 23/50 in accordance with ISO 554 for a further 24 h while still maintaining the load of 5 kg. Separate the

33、 test pieces after this period. NOTE This pre-treatment is to release any stresses or curl in the linoleum so that it is in a flat state when the test proper is commenced. 7.1 Conditioning Take and prepare a significant sample of the adhesive in accordance with EN 1066 and EN 1067. Condition glass p

34、lates, linoleum test pieces and the adhesives in a standard atmosphere 23/50 in accordance with ISO 554 for 10 days and maintain the climate for the duration of the test. 7.2 Datum points Fix the gauge studs in four positions, each being (25 1) mm from the outer edge of the covering (see Figure 2) u

35、sing the appropriate adhesive. 7.3 Reference dimension measurement A Lay each linoleum test piece onto a glass plate and place the metal plate centrally to ensure the test piece is completely flat. Measure dimensions LL 1 ,M M 1 ,P P 1 and QQ 1 : Measurement A.Page 5 EN 1841:1998 BSI 03-1999 Dimensi

36、ons in millimetres 1 grain direction 2 measurements between studs 3 edge to edge measurements Figure 2 MeasurementsPage 6 EN 1841:1998 BSI 03-1999 8 Test procedure 8.1 Application of the adhesive Apply the adhesive to the glass plate using the appropriate trowel held at an angle of 608. Ensure that

37、the application is parallel with one edge of the glass plate. NOTE It is convenient to mark the extremities of the linoleum piece on the glass plate and stick a self adhesive tape between these marks and the edge of the plate. After application of the adhesive, remove the tape. 8.2 Bonding After the

38、 minimum open time, place a test piece onto the prepared glass plate ensuring the length direction of the test piece is at right angles to the adhesive ridges. Smooth with light hand pressure. The test piece is rolled then with a roller as specified in 6.2 starting at one edge rolling up and down an

39、d gradually moving across the plate ensuring all areas are rolled. This is repeated then in a direction at a right angle to the first rolling. 8.3 Measurements Measure the test specimens as in 7.3 after the following time intervals: 10 min Measurement B 1 30 min Measurement B 2 60 min Measurement B

40、3 6 h Measurement B 4 24 h Measurement B 5 4 d Measurement B 6 7 d Measurement B 7 9 Evaluation and expression of results For each set of three test specimens, there shall be 6 values, each in the longitudinal direction and in the transverse direction at every measurement stage. Calculate the mean d

41、imensional change: a) longitudinally b) transversely at each stage, i.e. (B 1 -A), (B 2 -A), etc. Calculate the mean percentage change to two decimal places as follows: d n = (B n 2 A)3 100 A where: A = measurement A (see 7.3; dimensions LL 1 , MM 1 ,P P 1 and QQ 1 ), in millimetres B n = measuremen

42、t B after time interval n, in millimetres d n = dimensional change after time interval n (see 8.3; n = 1 to 7), in percent Plot the changes graphically. 10 Test report The test report shall include: a) a reference to this European Standard; b) the designation of adhesive and linoleum floorcovering;

43、c) the specification of the notched trowel used; d) open time allowed; e) the type of measuring device used; f) the mean percentage change in dimensions for each set of triplicate test specimens in both directions; g) a graph of the mean dimensional change on a linear scale against the time; h) any

44、physical changes or abnormalities observed; i) any factors affecting the result; j) the date of the test.blankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

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