1、BRITISH STANDARDBS EN 14293:2006Adhesives Adhesives for bonding parquet to subfloor Test methods and minimum requirementsThe European Standard EN 14293:2006 has the status of a British StandardICS 83.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3
2、g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14293:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 September 2006 BSI 2006ISBN 0 580 49129 3National forewordThis British S
3、tandard was published by BSI. It is the UK implementation of EN 14293:2006. The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives.A list of organizations represented on PRI/52 can be obtained on request to its secretary.This publication does not purport to in
4、clude all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14293August
5、2006ICS 83.180English VersionAdhesives - Adhesives for bonding parquet to subfloor - Testmethods and minimum requirementsAdhsifs - Adhsifs pour le collage de parquet au sol -Mthodes dessai et exigences minimales en matire dersistance au cisaillement et la tractionKlebstoffe - Klebstoffe fr das Klebe
6、n von Parkett auf einenUntergrund - Prfverfahren und MindestanforderungenThis European Standard was approved by CEN on 30 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national stand
7、ard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 lang
8、uage made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germ
9、any, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGMana
10、gement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14293:2006: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Test methods- procedures4
11、4.1 Sampling and test conditions.4 4.2 Test method for the determination of the rib height after a certain time.5 4.2.1 Principle5 4.2.2 Material .5 4.2.3 Apparatus .5 4.2.4 Test procedure and evaluation of test results6 4.3 Test method for determining shear strength7 4.3.1 Principle7 4.3.2 Material
12、 .7 4.3.3 Apparatus .7 4.3.4 Preparation of test specimens .8 4.3.5 Test procedure and evaluation of test results8 4.4 Test method for the determination of tensile strength8 4.4.1 Principle8 4.4.2 Material .9 4.4.3 Apparatus .9 4.4.4 Preparation of test specimens .9 4.4.5 Test procedure.9 4.4.6 Eval
13、uation and expression of test results 10 4.5 Test method for determining maximum open time by measuring shear strength .10 4.5.1 Principle10 4.5.2 Material .11 4.5.3 Apparatus .11 4.5.4 Preparation of test specimen .11 4.5.5 Test procedure and evaluation of test results11 4.6 Test method for determi
14、ning maximum open time by measuring tensile strength .12 4.6.1 Principle12 4.6.2 Material .12 4.6.3 Apparatus .12 4.6.4 Preparation of test specimen .12 4.6.5 Test procedure and evaluation of test results12 4.7 Test method for determining shear strength of soft adhesives .13 4.7.1 Principle13 4.7.2
15、Material .14 4.7.3 Apparatus .14 4.7.4 Preparation of test specimens .14 4.7.5 Test procedure and evaluation of test results15 5 Test report 16 6 Minimum requirements .16 EN 14293:20063 Foreword This document (EN 14293:2006) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secret
16、ariat of which is held by AENOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. SAFETY STATEME
17、NT Persons using this document should be familiar with the normal laboratory practice, in principle. 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 establish appropriate safety and health practices and to
18、 ensure compliance with any regulatory conditions. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, G
19、reece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14293:20064 1 Scope This European Standard specifies test methods for adhesives for bonding parquet and
20、 similar wood floorings to a subfloor. It also specifies the minimum requirements for shear strength and tensile strength to be achieved with these adhesives, as well as a method for determining the open time. there are two different test methods and different minimum requirements for determing the
21、shear strength for hard and soft adhesives. This Standard does not refer to the selection and installation of parquet floorings. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited app
22、lies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 923:2005, Adhesives Terms and definitions EN 1067, Adhesives Examination and preparation of samples for testing EN 1323, Adhesives for tiles Concrete slab for test EN 13488, Wood floori
23、ng Mosaic parquet elements EN ISO 10365, Adhesives Designation of main failure patterns (ISO 10365:1992) EN ISO 15605, Adhesives Sampling (ISO 15605:2000) ISO 554, Standard atmospheres for conditioning and/or testing Specifications 3 Terms and definitions For the purposes of this European Standard,
24、the terms and definitions given in EN 923:2005 and the following apply. 3.1 hard adhesives adhesives which show a shear elongation factor of less than 2 3.2 soft adhesives adhesives which show a shear elongation factor of 2 or more 3.3 shear elongation deformation of the unit thickness of an adhesiv
25、e under a shear force 4 Test methods- procedures 4.1 Sampling and test conditions Take the adhesive sample to be tested in accordance with EN ISO 15605 and examine and prepare it for testing in accordance with EN 1067. EN 14293:20065 All test methods shall be carried out under standard conditions at
26、 (23 2) C and at a (50 5)% relative 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 (see Figure 1). Key a notch depth b notch width c notch distance Figure 1 - Shape of
27、 notches of notched trowels 4.2 Test method for the determination of the rib height after a certain time 4.2.1 Principle The adhesive is spread on a base plate with a specified notched trowel. A testing plate made of glass is laid down at a given angle into the adhesive layer, and the wetted distanc
28、e on this plate is measured. 4.2.2 Material 4.2.2.1 Sample of adhesive, for testing. 4.2.2.2 Self adhesive tape 4.2.3 Apparatus 4.2.3.1 Notched trowel (shape of the notch see Figure 1), dimensions are as follows: notch depth: a = (5,0 0,2) mm; notch width: b = (5,0 0,2) mm; notch distance: c = (5,0
29、0,2) mm. 4.2.3.2 Timer, accuracy 1 s. 4.2.3.3 Testing plate, made of glass with dimensions of approximately 150 mm x 100 mm x 2 mm, with a round rod of metal or glass with dimensions of approximately 100 mm lengthwise and with an aproximate diameter of 4 0,05 mm, bonded on the glass plate (see Figur
30、e 2). EN 14293:20066 Dimensions in millimetres Key 1 glass plate, approximately 2 mm thickness 2 rod, metal or glass Figure 2 - Testing plate 4.2.3.4 Base plate, made of glass, with dimensions of approximately 300 mm x 300 mm x 4 mm. 4.2.3.5 Ruler, readable to 1 mm. 4.2.4 Test procedure and evaluati
31、on of test results Apply two parallel strips of self adhesive tape on the base plate perpendicularly to the length of the base plate leaving a distance of approximately 70 mm width unmasked. Hold the notched trowel vertically and spread the adhesive from one tape to the second. Immediately remove th
32、e strips of self adhesive tape. After 2 min 15 s lay in the testing plate parallel to the ribs and press it carefully down, without sliding, until the testing plate touches the base plate along both supporting lines. Immediately after, measure the distance X in mm as the mean value over all ribs, il
33、lustrating how far the testing plate is wetted by the adhesive. A test assembly is shown in Figure 3. EN 14293:20067 Dimensions in millimetres key 1 base plate 2 rod 3 adhesive 4 testing plate 5 supporting line X wetted distance The value X is representative for the height of the ribs. Figure 3 - Te
34、st assembly, side view 4.3 Test method for determining shear strength 4.3.1 Principle Two mosaic parquet fingers are lap bonded and stored under two different conditions. After conditioning, the test specimens are clamped in a tensile testing machine and an increasing tensile force is applied until
35、breakage. The shear strength is then calculated. 4.3.2 Material 4.3.2.1 Mosaic parquet finger according to EN 13488, oak with dimensions of approximately (140 to 165) mm x 23 mm x 8 mm. 4.3.2.2 Sample of adhesive, for testing. 4.3.3 Apparatus 4.3.3.1 Notched trowel (shape of notch see Figure 1), dim
36、ensions as follows: notch depth: a = (3,6 0,2) mm; notch width: b =(3,4 0,2) mm; notch distance: c = (3,4 0,2) mm. EN 14293:20068 4.3.3.2 Weights, 2 kg 1 g mass each. 4.3.3.3 Timer, accuracy 1 s. 4.3.3.4 Tensile testing machine with a transverse rate of (20 2) mm/min and a maximum force of 5 kN to 1
37、0 kN. 4.3.3.5 Oven, air circulating oven capable of controlling the temperature to within 2 C. 4.3.4 Preparation of test specimens With the trowel held vertically, spread the adhesive on one end of the mosaic parquet finger, so that an area of approximately 800 mm2is wetted. The ribs of the adhesive
38、 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 specimen by pressing a second mosaic parquet finger on every prepared finger. The overlap bond area shall be 600 mm2. The fi
39、ngers 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 a total of 28 days, in detail: 7 days at standard conditions 23/50 in accordance with ISO 554; 20 days at 40 C; 1 day at standar
40、d conditions 23/50 in accordance with ISO 554; b) 10 test specimens for 3 days at standard conditions 23/50 in accordance with ISO 554. 4.3.5 Test procedure and evaluation of test results After conditioning, clamp the ends of the test specimen in the jaws of the tensile testing machine up to a lengt
41、h of 40 mm to 50 mm. Ensure that the force is applied centrally and in the plane of the bond. Load the test specimen until breakage. Determine the maximum force Fmaxin N. The shear strength TS (in N/mm2) is calculated to an accuracy of 0,1 N/mm2by the following equation: TS= Fmax /A (1) where Fmaxis
42、 the force at breakage, in N; A is the bonded area, in mm2(600 mm2). 4.4 Test method for the determination of tensile strength 4.4.1 Principle Wood parquet pieces are bonded with an adhesive to a concrete slab. After storing under standard conditions for different time intervals, the tensile strengt
43、h is determined using bonded pull head plates. EN 14293:20069 4.4.2 Material 4.4.2.1 Sample of adhesive, for testing. 4.4.2.2 Parquet pieces with dimensions of approximately (50 5) mm x (50 5) mm x approximately 10 mm. 4.4.2.3 Concrete slab: standard concrete slab in accordance with EN 1323. 4.4.2.4
44、 Adhesive for bonding the pull head plates 4.4.3 Apparatus 4.4.3.1 Notched trowel (shape of notch see Figure 1), dimensions as follows: notch depth: a = (3,6 0,2) mm; notch width: b = (3,4 0,2) mm; notch distance: c = (3,4 0,2) mm. 4.4.3.2 Weights 2 kg 1 g mass each. 4.4.3.3 Pull head plates: square
45、 metal plates with dimensions of (50 1) mm x (50 1) mm and a minimum thickness of 10 mm with a suitable fitting for connecting them to the testing machine. 4.4.3.4 Tensile testing machine with a suitable capacity and accuracy for the test. The machine shall be capable of applying the load to the pul
46、lhead plate at a rate of (250 50) N/s through a suitable fitting that does not exert any bending force. 4.4.3.5 Oven: air circulating oven capable of controlling the temperature within 2 C. 4.4.4 Preparation of test specimens Pour about 300 g of the adhesive to the concrete slab then using the notch
47、ed trowel held at an angle of approximately 60 to the slab, comb the slab to provide a uniform application. Hold the trowel at a right angle to one edge of the slab and draw across the slab parallel to that edge in a straight line. After a time recommended by the adhesive manufacturer place at least
48、 10 parquet pieces on the adhesive at a distance of approximately 50 mm apart and load each bonded parquet piece immediately with a weight of 2 kg for 60 s. 4.4.5 Test procedure 4.4.5.1 Determination of tensile strength after seven days Prepare the test specimens in accordance with (4.4.4) and store
49、 under standard conditions (4.1). After six days, bond the pull head 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. Calculate the tensile strength according
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