1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 17178:2013Adhesives Adhesives forbonding parquet to subfloor Test methods and minimumrequirementsBS ISO 17178:2013 BRITISH STANDARDNational forewordThis British Standard i
2、s the UK implementation of ISO 17178:2013.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/52, Adhesives.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovi
3、sions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 75687 0ICS 83.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published und
4、er the authority of theStandards Policy and Strategy Committee on 31 May 2013.Amendments issued since publicationDate Text affectedBS ISO 17178:2013 ISO 2013Adhesives Adhesives for bonding parquet to subfloor Test methods and minimum requirementsAdhsifs Adhsifs pour le collage de parquet au sol Mtho
5、des dessai et exigences minimalesINTERNATIONAL STANDARDISO17178First edition2013-04-15Reference numberISO 17178:2013(E)BS ISO 17178:2013ISO 17178:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no part of this publication ma
6、y be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the
7、 requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 17178:2013ISO 17178:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Ter
8、ms and definitions . 14 Test methods and procedures 24.1 Sampling and test conditions . 24.2 Test method for determining shear strength 24.3 Test method for the determination of tensile strength 44.4 Test method for determining shear strength of hard elastic and elastic adhesives 65 Test report . 96
9、 Minimum requirements 9BS ISO 17178:2013ISO 17178:2013(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees
10、. 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 organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Intern
11、ational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the diffe
12、rent types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not b
13、e held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny trade name used in this document is information
14、given for the convenience of users and does not constitute an endorsement.The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 11, Products.iv ISO 2013 All rights reservedBS ISO 17178:2013INTERNATIONAL STANDARD ISO 17178:2013(E)Adhesives Adhesives for bonding parquet t
15、o subfloor Test methods and minimum requirementsSAFETY STATEMENT Persons using this document should be familiar with the normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establis
16、h appropriate safety and health practices and to ensure compliance with any regulatory conditions.1 ScopeThis International Standard specifies test methods for adhesives for bonding parquet and similar wood floorings to a subfloor. It also specifies the minimum requirements for shear strength, tensi
17、le strength to be achieved with these adhesives.This International Standard does not refer to the selection and installation of parquet floorings.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
18、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 554, Standard atmospheres for conditioning and/or testing SpecificationsISO 10365, Adhesives Designation of main failure patternsISO 156
19、05, Adhesives SamplingEN 923:2005, Adhesives Terms and definitionsEN 1067, Adhesives Examination and preparation of samples for testingEN 1323, Adhesives for tiles Concrete slab for testEN 13488, Wood flooring Mosaic parquet elements3 Terms and definitionsFor the purposes of this document, the terms
20、 and definitions given in EN 923:2005 and the following apply.3.1hard adhesiveadhesive which shows a shear strength of 3,0 N/mm2or moreNote 1 to entry: Hard adhesives are tested according to 4.2.3.2hard elastic adhesiveadhesive which shows a shear strength of 2,0 N/mm2or more and a shear elongation
21、of 0,5 or moreNote 1 to entry: Hard elastic adhesives are tested according to 4.4. ISO 2013 All rights reserved 1BS ISO 17178:2013ISO 17178:2013(E)3.3elastic adhesiveadhesive which shows a shear strength between 1,0 N/mm2and 2,0 N/mm2and a shear elongation of 1,0 or moreNote 1 to entry: Elastic adhe
22、sives are tested according to 4.4.3.4shear elongationdeformation of the unit thickness of an adhesive under a shear force4 Test methods and procedures4.1 Sampling and test conditionsTake the adhesive sample to be tested in accordance with ISO 15605 and examine and prepare it for testing in accordanc
23、e with EN 1067.All test methods shall be carried out under standard conditions at (23 2) C and at (50 5) % relative air humidity in accordance with ISO 554. Condition all test materials for at least 24 h under standard conditions.The shape of the notches shall be triangular for all notched trowels (
24、see Figure 1).ab cKeya notch depthb notch widthc notch distanceFigure 1 Shape of notches of notched trowels4.2 Test method for determining shear strength4.2.1 PrincipleTwo mosaic parquet fingers are lap bonded and stored under two different conditions. After conditioning, the test specimens are clam
25、ped in a tensile testing machine and an increasing deformation is applied until breakage.The shear strength is then calculated.4.2.2 Material4.2.2.1 Mosaic parquet finger according to EN 13488, oak with dimensions of (160 5) mm (23 1) mm (8,0 0,3) mm.2 ISO 2013 All rights reservedBS ISO 17178:2013IS
26、O 17178:2013(E)4.2.2.2 Sample of adhesive, for testing.4.2.3 Apparatus4.2.3.1 Notched trowel (for the shape of the notch, see Figure 1), dimensions as follows: notch depth: a = (3,25 0,10) mm; notch width: b = (3,70 0,10) mm; notch distance: c = (3,30 0,10) mm.4.2.3.2 Weights, 2 kg 10 g mass each.4.
27、2.3.3 Timer, accuracy 1 s.4.2.3.4 Tensile testing machine, with a transverse rate of (20 2) mm/min and a maximum force of 5 kN to 10 kN.4.2.3.5 Oven, air circulating oven capable of controlling the temperature to within 2 C.4.2.4 Preparation of test specimensWith the trowel held vertically, spread t
28、he adhesive on one end of the mosaic parquet finger, so that an area of (800 200) mm2is wetted. The ribs of the adhesive shall be nearly at right angles to the length of the mosaic parquet finger. Immediately, or after a waiting time as required by the adhesive manufacturer, form the single test spe
29、cimen by pressing a second mosaic parquet finger on every prepared finger.The overlap bond area shall be (600 20) mm2. The fingers shall be parallel. Every bond shall be loaded with a weight of 2 kg for 60 s.Store two groups of test specimens free of tension as follows:a) 10 test specimens for 3 day
30、s at standard conditions 23/50 in accordance with ISO 554.b) 10 test specimens for a total of 28 days, in detail:1) seven days at standard conditions 23/50 in accordance with ISO 554;2) 20 days at (40 2) C;3) one day at standard conditions 23/50 in accordance with ISO 554.4.2.5 Test procedure and ev
31、aluation of test resultsAfter conditioning, clamp the ends of the test specimen in the jaws of the tensile testing machine. The lengths between the jaws shall be (200 20) mm. Ensure that the force is applied centrally and in the plane of the bond. Load the test specimen until breakage. Determine the
32、 maximum force Fmaxin N. ISO 2013 All rights reserved 3BS ISO 17178:2013ISO 17178:2013(E)The shear strength TS(in N/mm2) is calculated to an accuracy of 0,1 N/mm2by Formula (1):TFAS=max(1)whereFmaxis the maximum force, in N;A is the bonded area, in mm2.4.3 Test method for the determination of tensil
33、e strength4.3.1 PrincipleWood parquet pieces are bonded with an adhesive to a concrete slab. After storing under standard conditions for different time intervals, the tensile strength is determined using bonded pull head plates.4.3.2 Material4.3.2.1 Sample of adhesive, for testing.4.3.2.2 Parquet pi
34、eces with dimensions of (50 5) mm (50 5) mm (approximately 10 mm).4.3.2.3 Concrete slab, standard concrete slab in accordance with EN 1323.4.3.2.4 Adhesive for bonding the pull head plates.4.3.3 Apparatus4.3.3.1 Notched trowel (for the shape of the notch, see Figure 1), dimensions as follows: notch
35、depth: a = (3,25 0,10) mm; notch width: b = (3,70 0,10) mm; notch distance: c = (3,30 0,10) mm.4.3.3.2 Weights, 2 kg 10 g mass each.4.3.3.3 Pull head plates, square metal plates with dimensions of (50 1) mm (50 1) mm and a minimum thickness of 10 mm with a suitable fitting for connecting them to the
36、 testing machine.4.3.3.4 Tensile testing machine, with a suitable capacity and accuracy for the test. The machine shall be capable of applying the load to the pullhead plate at a rate of (250 50) N/s through a suitable fitting that does not exert any bending force.4.3.3.5 Oven, air circulating oven
37、capable of controlling the temperature within 2 C.4 ISO 2013 All rights reservedBS ISO 17178:2013ISO 17178:2013(E)4.3.4 Preparation of test specimensPour about 300 g of the adhesive onto the concrete slab. Then, using the notched trowel held at an angle of approximately 60 to the slab, comb the adhe
38、sive to provide a uniform application. Hold the trowel at a right angle to one edge of the slab and draw it across the slab parallel to that edge in a straight line.After a time recommended by the adhesive manufacturer, place at least 10 parquet pieces on the adhesive at a distance of approximately
39、50 mm apart and load each bonded parquet piece immediately with a weight of 2 kg for 60 s.4.3.5 Test procedure4.3.5.1 Determination of tensile strength after seven daysPrepare the test specimens in accordance with 4.3.4 and store them under standard conditions (4.1).After six days, bond the pull hea
40、d plates nearly flush to the parquet pieces with a suitably high strength adhesive (e.g. epoxide resin).After a further 24 h storage under standard conditions (4.1), determine the tensile strength by applying a force at a constant rate of (250 50) N/s until breakage.Record the maximum force in N. Ca
41、lculate the tensile strength according to 4.3.6.4.3.5.2 Determination of tensile strength after 28 daysPrepare the test specimens in accordance with 4.3.4 and store them under standard conditions (4.1).After 27 days, bond the pull head plates nearly flush to the parquet pieces with a suitably high s
42、trength adhesive (e.g. epoxide resin).After a further 24 h storage under standard conditions (4.1), determine the tensile strength by applying a force at a constant rate of (250 50) N/s until breakage.Record the maximum force in N. Calculate the tensile strength according to 4.3.6.4.3.5.3 Determinat
43、ion of tensile strength after heat ageingPrepare the test specimens in accordance with 4.3.4.Condition the test specimens under standard conditions (4.1) for seven days and place them in an air-circulating oven at (40 2) C for a further 20 days. Remove the test specimens from the oven and bond the p
44、ull head plates nearly flush to the parquet pieces with a suitable high strength adhesive (e.g. epoxide resin).Condition the test specimens for a further 24 h under standard conditions (4.1). Then apply a force under constant rate of (250 50) N/s until breakage. Record the maximum force in N. Calcul
45、ate the tensile strength according to 4.3.6. ISO 2013 All rights reserved 5BS ISO 17178:2013ISO 17178:2013(E)4.3.6 Evaluation and expression of test resultsThe tensile adhesive strength, TT(in N/mm2), is calculated using Formula (2) and reported with an accuracy of 0,1 N/mm2.TFAT=max(2)whereFmaxis t
46、he maximum force, in N;A is the bonded area, in mm2(2 500 mm2).The tensile strength for each set of conditions is determined as follows:Calculate the arithmetic mean of the 10 results. If one or more of the values differs more than 20 % from the arithmetic mean, discard the value which differs most
47、and recalculate the mean.If necessary repeat this procedure. If less than five values remain, the whole test shall be repeated. Record the results of the 10 test specimens, the final arithmetic mean and the number of test results used.The failure mode is inspected to determine the type of failure wh
48、ether it is adhesive or cohesive in accordance with ISO 10365.4.4 Test method for determining shear strength of hard elastic and elastic adhesives4.4.1 PrincipleFor determining shear strength of elastic adhesives two mosaic parquet finger are lap bonded with the thickness of the adhesive gap being a
49、pproximately 1 mm. After conditioning, the test specimens are clamped in a tensile testing machine and a deformation is applied until breakage. The maximum force Fmaxis recorded. Using the thickness of the adhesive gap before testing and the elongation at maximum shear strength, the shear elongation is determined.4.4.2 Material4.4.2.1 Mosaic parquet finger according to EN 13488, oak with dimensions of (160 5) mm (23 1) mm (8,0 0
