EN 12447-2001 en Geotextiles and Geotextile-Related Products - Screening Test Method for Determining the Resistance to Hydrolysis in Water《土工织物及与土工织物相关的产品 测定在水中耐水解性的筛选试验方法[代替 ENV 1.pdf
《EN 12447-2001 en Geotextiles and Geotextile-Related Products - Screening Test Method for Determining the Resistance to Hydrolysis in Water《土工织物及与土工织物相关的产品 测定在水中耐水解性的筛选试验方法[代替 ENV 1.pdf》由会员分享,可在线阅读,更多相关《EN 12447-2001 en Geotextiles and Geotextile-Related Products - Screening Test Method for Determining the Resistance to Hydrolysis in Water《土工织物及与土工织物相关的产品 测定在水中耐水解性的筛选试验方法[代替 ENV 1.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、Geotextiles and geotextile-related products Screening test method for determining the resistance to hydrolysis in water The European Standard EN 12447:2001 has the status of a British Standard ICs 59.080.70 BS EN 12447:2001 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN
2、 12447:2001 Amd. No. National foreword Date Comments This British Standard, having been prepared under the direction of the Sector Policy and Strategy Committee for Building and Civil Engineering, was published under the authority of the Standards Policy and Strategy Committee on 3 December 2001 Thi
3、s British Standard is the official English language version of EN 12447:2001. It supersedes DD ENV 12447:1998 which is withdrawn. The UKparticipation in its preparation was entrusted to Technical Committee B/553, Geosynthetics, which has the responsibility to: - - aid enquirers to understand the tex
4、t; 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
5、ained on request to its secretary. Cr oss-r e fer enc e s 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 “
6、Find” 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 le
7、gal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 3 December 200 1 ISBN O 580 38758 5 EUROPEAN STANDARD
8、 NORME EUROPENNE EUROPISCHE NORM EN 12447 October 2001 ICs 59.080.70 Supersedes ENV 12447:1997 English version Geotextiles and geotextile-related products - Screening test method for determining the resistance to hydrolysis in water Gotextiles et produits apparents - Mthode dessai slective pour la d
9、termination de la rsistance lhydrolyse dans leau Geotextilien und geotextilverwandte Produkte - Auswahlprfverfahren zur Bestimmung der Hydrolysebestndigkeit in Wasser This European Standard was approved by CEN on 1 O August 2001. CEN members are bound to comply with the CENKENELEC Internal Regulatio
10、ns 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 Management Centre or to any CEN member. This European
11、 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 Management Centre has the same status as the official versions. CEN members are the national s
12、tandards 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 NORMUNG COMIT EUROPEN DE NO
13、RMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12447:2001 E EN 12447:2001 (E) Foreword This European Standard has been prepared by Technical Committee CEN/T
14、C 189 “Geosynthetics“, the secretariat of which is held by IBN. 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 April 2002, and conflicting national standards shall be withdrawn at the latest by A
15、pril 2002. This European Standard supersedes ENV 12447: 1997 This standard includes a Bibliography. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denma
16、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 2 EN 12447:2001 (E) I nt rod uct ion This standard describes a screening test method to establish a minimum acceptance level of resistance of g
17、eotextiles and geotextile-related products to soil moisture. In certain polymers moisture leads to hydrolysis throughout the thickness of the fibre (internal hydrolysis) but the rate of degradation is such that over short periods it is only measurable at elevated temperatures, e.g. by immersion in h
18、ot water. NOTE This standard should be used with reference to CR IS0 13434. 1 Scope This European Standard specifies a screening test method for determining the resistance of geotextiles and geotextile-related products to hydrolysis by exposing test specimens to water at elevated temperatures, follo
19、wed by an evaluation of the changes in properties resulting from such exposure. It is intended as a means of establishing a minimum acceptable level of durability. The test is applicable to any geotextile and geotextile-related product susceptible to hydrolysis, in particular polyester and polyamide
20、 based materials, and in addition to the yarns from which these geotextiles are made. Reinforcing materials shall be tested without the coating and manufacturers shall ensure that the degradation of the coating will not attack or have any negative influence on the degradation of the yarns. This meth
21、od is not intended for determining the resistance of geotextiles to hydrolysis under highly acid or alkaline conditions. NOTE Performance tests to predict long-term lifetime or to compare products of different polymers or of similar polymers with differing structures can be based on the same method
22、but with a wider range of temperatures and durations. 2 Norm at ive re fe re n ces 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 hereaf
23、ter. For dated references, subsequent 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 (including amendments). EN IS0 2062 Te
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