BS EN ISO 9862-2005 Geosynthetics - Sampling and preparation of test specimens《土工合成织物 抽样和试样制备》.pdf

1、BRITISH STANDARD BS EN ISO 9862:2005 Geosynthetics Sampling and preparation of test specimens The European Standard EN ISO 9862:2005 has the status of a British Standard ICS 59.080.70 BS EN ISO 9862:2005 This British Standard was published under the authority of the Standards Policy and Strategy Com

2、mittee on 9 March 2005 BSI 9 March 2005 ISBN 0 580 45589 0 National foreword This British Standard is the official English language version of EN ISO 9862:2005. It is identical with ISO 9862:2005. It supersedes BS EN 963:1995 which is withdrawn. The UK participation in its preparation was entrusted

3、to Technical Committee B/553, Geosynthetics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document

4、may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. User

5、s are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change,

6、 and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this docu

7、ment indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9862 February 2005 ICS 59.080.70 Supersedes EN 963:1995 English version Geosynthetics - Sampling and preparation of test specimens (IS

8、O 9862:2005) Gosynthtiques - Echantillonage et prparation des prouvettes (ISO 9862:2005) Geokunststoffe - Probenahme und Vorbereitung der Messproben (ISO 9862:2005) This European Standard was approved by CEN on 15 November 2004. CEN members are bound to comply with the CEN/CENELEC Internal Regulatio

9、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 Central Secretariat or to any CEN member. This Europe

10、an 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 as the official versions. CEN members are the nation

11、al standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROP

12、EAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9862:2005: EEN ISO 9862

13、:2005 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Procedure .5 3.1 Sampling.5 3.1.1 Selection of rolls5 3.1.2 Cutting 5 3.1.3 Identification of sample.5 3.2 Preparation of specimens.5 4 Sampling report .7 Annex A (informative) Recommendation for test samples an

14、d test specimens.8 Bibliography 9 EN ISO 9862:2005 (E) 3 Foreword This document (EN ISO 9862:2005) has been prepared by Technical Committee CEN/TC 189 “Geosynthetics“, the secretariat of which is held by IBN, in collaboration with Technical Committee ISO/TC 221 “ Geosynthetics“. This European Standa

15、rd shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2005, and conflicting national standards shall be withdrawn at the latest by August 2005. This document supersedes EN 963:1995. According to the CEN/CENELEC Inte

16、rnal 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, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nethe

17、rlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN ISO 9862:2005 (E) 4 Introduction Geosynthetics are produced in many different ways, partly using traditional textile procedures, partly using procedures not commonly recognized as textile procedur

18、es. Geosynthetics are defined in prEN ISO 10318. Geosynthetics are typically supplied in rolls. Whilst sampling should ensure the best possible statistical significance of the average finding and its coefficient of variation, there are practical limits to the possible distribution of samples and spe

19、cimens over the entire lot and its single units supplied to a construction site. EN ISO 9862:2005 (E) 5 1 Scope This document establishes general principles for the sampling of geosynthetics delivered to construction sites, and for the preparation of test specimens from the samples. The sampling pri

20、nciples are applicable to geosynthetics supplied in rolls. NOTE EN ISO 186 may be used for products supplied in sheet form. The specimen-preparation principles are applicable to all geosynthetics. 2 Normative references The following referenced documents are indispensable for the application of this

21、 document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 10320, Geotextiles and geotextile-related products Identification on site (ISO 10320:1999). 3 Procedure 3.1 Sampling 3.1.1

22、 Selection of rolls 3.1.1.1 For each product type delivered to a construction site, take samples at frequencies as agreed between the parties involved (see annex A). 3.1.1.2 With the exception of tests made in connection with claims, each roll selected shall appear undamaged and the wrapping, if any

23、, shall be intact. 3.1.2 Cutting 3.1.2.1 Information regarding the number of test specimens, their shape and any requirements shall be obtained from the relevant test standard(s) for all tests to be made on the sample. 3.1.2.2 The first two turns of the roll shall not be used for sampling. 3.1.2.3 C

24、ut from the roll over its full width perpendicular to the machine direction (production direction roll length direction) the length of the sample necessary to obtain all specimens required, distributed in accordance with the principles in this document (see 3.2). 3.1.2.4 Since specimens shall not co

25、ntain damaged parts as defined in 3.2.4, either such parts shall be avoided in selecting the sample, or the sample shall be cut large enough to obtain the necessary number of acceptable specimens (except for the case specified in 3.1.1.2). 3.1.3 Identification of sample Identification of samples sha

26、ll be in accordance with EN ISO 10320. 3.2 Preparation of specimens 3.2.1 Both during and after sampling, care shall be taken to ensure that the physical condition of the sample remains unchanged prior to testing. For example, samples of clay geosynthetic barriers shall be maintained at the moisture

27、 content prevailing at the time of sampling. EN ISO 9862:2005 (E) 6 3.2.2 If the sample is not to be cut into specimens immediately, it shall be kept in a dry, dark place, free from dust, at ambient temperature and protected against chemical and physical changes. NOTE 1 The sample may be rolled up b

28、ut preferably not folded. NOTE 2 GBR-R samples shall be neither rolled nor folded. 3.2.3 For each type of test, the required number of specimens shall be cut from positions evenly distributed over the full width and length of the sample, but not closer than 100 mm to the edge. 3.2.4 Except for speci

29、mens for tests to be made in connection with claims (see 3.1.1.2), specimens shall not contain any dirt, irregular areas, creases, holes or other visible defects of accidental origin produced subsequent to manufacture. 3.2.5 Unless otherwise required in a test standard, for the same type of test, th

30、e same longitudinal or transverse position of two or more specimens shall be avoided. If unavoidable (e.g. due to narrow roll width) a note to this effect shall be included in the sampling report. 3.2.6 Except when additional tests are required, the specimens shall be cut along the machine and cross

31、- machine directions. When the test procedure calls for the specimen to be marked with the machine direction, the marking indicating the machine direction on the sample shall be transferred to the specimen, or the specimen shall be kept separate in such a way that there can be no risk of a misunders

32、tanding. 3.2.7 When cutting test specimens reference shall be made to the particular test standards for which the specimens are being prepared. In tests where accuracy of dimensions is of special importance, the specimens may be cut to an oversize and then cut or frayed to the exact dimensions after

33、 conditioning. 3.2.8 Appropriate identification markings on the sample shall be transferred to all specimens to ensure correct specimen identification. 3.2.9 If the cutting causes fragments of the geosynthetic to become loose, or if accidental fraying occurs, all loose fragments shall be kept with t

34、he specimen until the test is carried out. If the loosening of fragments cannot be avoided and this is likely to influence the test result, the fact that loosening has occurred shall be reported in the sampling report as well as in the test report. 3.2.10 The specimens shall be kept in a dry, dark p

35、lace free from dust, at ambient temperature and protected against chemical and physical changes until the test is performed. EN ISO 9862:2005 (E) 7 4 Sampling report The sampling report shall include the following particulars: a) statement that the sampling and preparation of specimens was performed

36、 in accordance with this document; b) details of any special observations made during the selection, sampling or preparation of specimens, such as: the number and type of defects; loosening of fragments from the geosynthetic; the necessity for taking specimens for the same test in only one longitudi

37、nal or transverse position; c) details of any deviation from the specified sampling procedure; d) date of cutting of the sample, and reference number(s) of the rolls selected. EN ISO 9862:2005 (E) 8 Annex A (informative) Recommendation for test samples and test specimens Test Reference Sample length

38、 a m Number of test specimens required bThickness EN ISO 9863-1 1 10 Mass per unit area EN ISO 9864 1 10 Tensile properties EN ISO 10319 2 10 Static puncture resistance EN ISO 12236 2 10 Dynamic puncture resistance EN 918 2 10 Characteristic opening size EN ISO 12956 2 5 Permeability normal to the p

39、lane EN ISO 11058 1 5 In-plane flow capacity EN ISO 12958 2 5 Weathering resistance EN 12224 3 12 Oxidation resistance EN ISO 13438 3 12 Hydrolysis resistance EN 12447 3 12 Chemical resistance EN 14030 3 12 Microbiological resistance EN 12225 3 12 aLength along roll for full production width. bThese

40、 are minimum quantities. Some test methods may require additional test specimens. EN ISO 9862:2005 (E) 9 Bibliography EN ISO 186, Paper and board Sampling to determine average quality (ISO 186:2002). prEN ISO 10318, Geosynthetics - Terms and definitions (ISO/DIS 10318:2000) BS EN ISO 9862:2005 BSI 3

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