BS EN 12105-1998 Resilient floor coverings Determination of moisture content of agglomerated composition cork《弹性地板覆盖物 压制软木制品的水分测定》.pdf

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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12105:1998 The Euro

2、pean Standard EN 12105:1998 has the status of a British Standard ICS 79.100; 97.150 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Resilient floor coverings Determination of moisture content of agglomerated composition corkThis British Standard, having been prepared under the

3、 direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 November 1998 BSI 1998 ISBN 0 580 30511 2 BS EN 12105:1998 Amendments issued since publication Amd. No. Date Text affected National foreword This British S

4、tandard is the English language version of EN 12105:1998. The UK participation in its preparation was entrusted to Technical Committee PRI/60, Resilient floor coverings, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries

5、 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 obtained on request to its secretary. Cross-references The British

6、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” facility of the BSI Standards Electronic Catalogue. A British St

7、andard 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 obligations. Summary of pages This document comprises a front cove

8、r, an inside front cover, the EN title page, pages 2 and 3 and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by

9、any means reserved worldwide for CEN national Members. Ref. No. EN 12105:1998 E EUROPEAN STANDARD EN 12105 NORME EUROPE ENNE EUROPA ISCHE NORM July 1998 ICS 79.100; 97.150 Descriptors: Floor coverings, cork, tests, determination, humidity, weight losses English version Resilient floor coverings Dete

10、rmination of moisture content of agglomerated composition cork Reve tements de sol re silients De termination de la teneur en eau de lagglome re de lie ge Elastische Bodenbela ge Bestimmung des Feuchtegehalts von Prekork This European Standard was approved by CEN on 1 July 1998. CEN members are boun

11、d 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 bibliographical references concerning such national standards may be obtained on application to the Ce

12、ntral 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 CEN member into its own language and notified to the Central Secretariat has the same status a

13、s 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, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 12105:1998 BSI 1998 Forew

14、ord This European Standard has been prepared by Technical Committee CEN/TC 134 Resilient and textile floor coverings, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the

15、 latest by January 1999, and conflicting national standards shall be withdrawn at the latest by January 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Repu

16、blic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 3 EN 12105:1998 BSI 1998 1 Scope This European Standard specifies a method for determining the moisture content of agglomerated

17、cork. 2 Definitions For the purposes of this standard the following definitions apply. 2.1 agglomerated composition cork product obtained from the agglutination of cork granules with the addition of a binder, generally not derived from cork cells EN 12466 2.2 moisture content the loss in mass of a t

18、est specimen after being dried under specified conditions 3 Principle A test specimen is weighed, dried under specified conditions then re-weighed. From this, the loss in mass is calculated. 4 Apparatus 4.1 Balance, with readability to 0,05 g. 4.2 Oven, ventilated and controlled at (103 5)8C. 4.3 De

19、siccator, containing an efficient dessicant (e.g. silica gel). 4.4 Open, dry containers. 4.5 Cutting system, to take the test specimens. 5 Sampling and preparation of test pieces From a representative sample of the available material, take three square test specimens of approximate dimensions of 100

20、 mm3 100 mm and the thickness of the material. Test specimens shall be cut at a distance at least 100 mm from the edges of the sample. 6 Procedure Carry out all weighings to the nearest 0,5 g. Weigh each dried container (m 0 ). Place each test specimen in a container and weigh each set (m 1 ). Place

21、 the containers with the test specimens in the oven and dry for at least 3 h. After this period, remove the containers with the test specimens and let them cool in the dessicator for about 30 min; re-weigh each set with the same precision (m 2 ). Repeat this procedure until constant mass is obtained

22、 (i.e. until two consecutive weighings do not differ by more than 0,5 g). 7 Calculation and expression of results Calculate the moisture content, H, of each test specimen as a percentage using the following expression: H = 3 100 m 1 2 m 2 m 1 2 m 0 where: m 0 is the mass of the container expressed i

23、n grams, rounded up to the nearest 0,5 g; m 1 is the mass of the test specimen and the container before drying, expressed in grams, rounded up to the nearest 0,5 g; m 2 is the mass of the test specimen and the container after drying, expressed in grams, rounded up to the nearest 0,5 g; Calculate the

24、 test result as the mean value of the moisture content for the three tests specimens, expressed as a percentage, rounded up to the nearest integer. 8 Test report The test report shall contain the following information: a) reference to this European Standard, i.e. EN 12105:1998; b) a complete identif

25、ication of the product tested, including type, source and manufacturers reference numbers; c) the previous history of the sample; d) the test result in percent; e) any deviation from this standard that may have affected the results.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | |

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