1、BRITISH STANDARD BS EN 12706:2000 Adhesives - Test methods for hydraulic setting floor smoo thing and/or levelling compounds - Determination of flow characteristics I The European Standard EN 127W1999 has the status of a British Standard ICs 83.180; 91.100.99 I NO COPYING WITHOUT BSI PERMISSION EXCE
2、PT AS PERMITTED BY COPYRIGHT LAW STDmBSI BS EN L270b-ENGL 2000 Lb24bb7 0830228 779 W BS EN 12706:2000 direction of the Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 February 2000 Amd. No. National foreword Date Comments This British Standa
3、rd is the official English language version of EN 127K1999. The UK participation in its preparation was entrusted by Technical Committee PRI/52, Adhesives, to Subcommittee PRI/52/-/4, Building adhesives, which has the responsibility to: - aid enquirers to understand the text; - present to the respon
4、sible European committee any enquiries on the - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed them in the UK. A list of organizations represented on this subcommittee can be obtained on request to it
5、s 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 “Intemational Standards Correspondence Index”, or by using the “Find” facility of the BSI Sta
6、ndards Electronic Catalogue. A British Standard does not purport to include ail 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 obligations. Summary of p
7、ages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copynght notice displayed in this document indicates when the document was last issued. O BSI 02-2000 I I ISBN O 580 34031 7 I I _ STD.BSI BS EN 32706-ENGL 2000 W Lb24bb9 0830
8、229 805 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12706 November 1999 ICs 91 .i 00.99 English version Adhesives - Test methods for hydraulic setting floor smoothing andlor levelling compounds - Determination of flow characteristics Adhsifs - Mthodes dessai des mortiers de lissage eou dgal
9、isation des sols prise hydraulique - Dtermination des caractristiques dcoulement Klebstoffe - Prfverfahren fr hydraulisch erhnende Boden-Spachtelmassen - Bestimmung des Flieverhaltens This European Standard was approved by CEN on 30 September 1999. CEN members are bound to comply with the CENICENELE
10、C Internal Regulations which stipulate the conditions for giving this Europein Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning sich national standards may be obtained on application to the Central Secretariat or to any CEN
11、 member. This European Standard exists in three oficial versions (English, French, German). A version in any other language made by trmslation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as tie official versions. CEN memb
12、ers are the national standards bodies of Austria, Belgium. Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMU
13、NG COMITE EUROPEN DE NORMALISATION Central Secretariat: rue de Stassart, 36 B-1050 Brussels O 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12706:1999 E STDoBSI BS EN L270b-ENGL 2000 9 Lb24669 0830230 527 m Page 2 EN 12706:1
14、999 Contents Foreword . 3 1 scope . 4 2 Normative references . 4 3 Terms and definitions 4 4 Principle 4 5 Safety . 4 6 Apparatus and material . 4 7 Standard test conditions . 5 8 Procedure 5 9 Evaluation and expression of results . 5 10 Test report . 5 OBSI 02-2000 STD.BSI BS EN 12706-ENGL 2000 = 1
15、624669 0830233 463 Page 3 EN 12706: 1999 Foreword This European Standard has been prepared by Technical Committee CENTTC 193, Adhesives, the Secretariat 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 b
16、y endorsement, at the latest by May 2000, and conflicting national standards shall be withdrawn at the latest by May 2000. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium
17、, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. OBSI 02-2000 STD-BSI BS EN L270b-ENGL 2000 H Lb24bb9 0830232 3TT Page 4 EN 12706:1999 1 Scope This European Standard spe
18、cifies a test method to assess the flow characteristics of a hydraulic setting floor smoothing and/or levelling compounds. Hydraulic setting floor smoothing and/or levelling compounds are referred to as “smoothing and/or levelling compound“ when mixed with water and/or mixing liquid according to the
19、 manufacturers instructions. 2 Normative references This European Standard incorporates by dated or undated reference, 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, subse
20、quent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies: prEN 1937:1999, Test method for hydraulic setting floor smoothing and
21、/or levelling compounds - Standard mixing procedures IS0 554, Standard atmospheres for conditioning and/or testing - Specifications. 3 Terms and definitions For the purposes of this standard the following definition, together with those given in prEN 1937:1999, apply: 3.1 flow ability of the mixed f
22、loor smoothing and/or levelling compound to spread under its own weight 4 Principle This test method measures the flow properties of a known volume of floor smoothing and/or levelling compound mixture by releasing it from a rigid tube after a given time. The diameter of the spread mixture is measure
23、d after a specified time. 5 Safety Persons using this standard shall be familiar with normal laboratory practice. This standard does not purport to address all safety problems, if any, associated with its use. It is the responsibility of the user to establish safety and health practices and to ensur
24、e compliance with any European and national regulatory conditions. 6 Apparatus and material 6.1 Tubes, made of smooth, non-corrosive metal, of internal diameter (30 * 0,l) mm and height (50 * 0,l) mm. 6.2 Glass plate, clean and dry, dimensions: 300 mm x 300 mm x 6 mm, for example. OBSI 02-2000 STD-B
25、SI BS EN 1270b-ENGL 2000 W Lh24bb9 0830233 23b Page 5 EN 12706: 1999 6.3 Timer, with an accuracy of 1 s. 6.4 Linear measuring equipment, with 1 mm divisions. 6.5 Smoothing andor levelling compound mixture, made in accordance with prEN 1937:1999. 7 Standard test conditions All apparatus and materials
26、 shall be conditioned at (23 f 2) eC and (50 f 5) % relative humidity in accordance with IS0 554. 8 Procedure Place one tube (6.1) centrally on a glass plate (6.2) and set it on a firm horizontal base. When the standard mixing procedure is completed in accordance with prEN 1937:1999, fill the tube t
27、o the top edge with the smoothing and/or levelling compound mixture (6.5). Immediately the tube is filled, start the timer (6.3) and simultaneously lift the tube from the glass plate in a vertical direction to a height of 50 mm to 100 mm within 2 s and allow to drain for 10 s to 15 s. After not less
28、 than 4 min measure the diameter of the flowed mixture in two directions at right angles, using the linear measuring equipment (6.4). Record the results as a measure of the initial flow. If more information is required, fill additional tubes with the same mixture, without further mixing, at interval
29、s of 5 minutes from the start of the timer. Lift and measure according to the procedure for the first tube. Record the results as a measure of flow versus time. 9 Evaluation and expression of results Record the flow of the mixture as the mean value of the two measurements of diameter to the nearest
30、1 mm, in each test. 10 Test report The test report shall include: a) a reference to this European Standard; b) identification of the smoothing and/or levelling compound stating the date of manufacture and/or batch number, if known; c) the mixing procedure used in accordance with prEN 1937:1999 and a
31、mount of water and/or mixing liquid used as percentage of the powder by weight; d) the initial flow and the flow versus time in millimetres; e) a graphical illustration of flow versus time; f) any physical changes or abnormalities observed during the test: g) any factors which may have affected the
32、result; h) date of test. OBSI 02-2000 +- STDOBSI BS EN 12706-ENGL 2000 = 1b24bb9 0830234 172 BS EN 12706:2000 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on stan
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