1、BRITISH STANDARD BS EN ISO 9863-2:1996 Geotextiles and geotextile-related products Determination of thickness at specified pressures Part 2: Procedure for determination of thickness of single layers of multilayer products The European Standard ENISO9863-2:1996 has the status of a British Standard IC
2、S 59.080.70BSEN ISO 9863-2:1996 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 December 1996 BSI 11-1998 The following BSI references relate to the w
3、ork on this standard: Committee reference TCI/35 Draft announced in BSI Update January 1994 ISBN 0 580 26768 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee TCI/35, Geotextiles, upon which the following bodies were repr
4、esented: Association of Consulting Engineers British Geotechnical Society British Polyolefin Textiles Association British Textile Technology Group Chemical Industries Association Department of the Environment (Building Research Establishment) Department of Transport (Transport Research Laboratory) D
5、epartment of Transport (Highways Agency) ERA Technology Ltd. Federation of Civil Engineering Contractors Institute of Asphalt Technology Institute of Wastes Management Institution of Chemical Engineers Institution of Civil Engineers National Rivers Authority Society of Engineers Incorporated Amendme
6、nts issued since publication Amd. No. Date CommentsBSEN ISO 9863-2:1996 BSI 11-1998 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Principle 3 4 Apparatus 3 5 Test specimens 3 6 Procedure 3 7 Calculation and expression o
7、f results 4 8 Test report 4 Annex A (informative) Bibliography 7 Annex ZZ (informative) Corresponding International and European Standards for which equivalents are not given in the text 7 Figure 1 Example of apparatus for determination of thickness of single layers of multilayer products 5 Figure 2
8、 Example showing a gauge line, median lines, and measuring points 6 List of references Inside back coverBSEN ISO 9863-2:1996 ii BSI 11-1998 National foreword This British Standard has been prepared by Technical Committee TCI/35 and is the English language version of ENISO9863-2:1996 Geotextiles and
9、geotextile-related products Determination of thickness at specified pressures Part2:Procedure for determination of thickness of single layers of multilayer products published by the European Committee for Standardization (CEN). This standard is identical with ISO9863-2 published by the International
10、 Organization for Standardization (ISO). ENISO9863-2 was prepared as a result of international discussions in which the UK took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct appl
11、ication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference Publication referred to Corresponding British Standard EN 963:1995 BS EN 963:1995 Geotextiles and geotextile-related products Sampling and preparation of test specimens Summary of p
12、ages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the
13、inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9863-2 August 1996 ICS 59.080.70 Descriptors: Textiles, filter fabrics, tests, thickness measurements, test pressure English version Geotextiles and geotextile-related products Determination of thickness at specified pressur
14、es Part 2: Procedure for determination of thickness of single layers of multilayer products (ISO 9863-2:1996) Gotextiles et produits apparents Dtermination de lpaisseur des pressions prescrites Partie 2: Mthode de dtermination de lpaisseur des couches individuelles de produits multi-couches (ISO 986
15、3-2:1996) Geotextilien und geotextilverwandte Produkte Bestimmung der Dicke unter festgelegten Drcken Teil 2: Verfahren zur Bestimmung der Dicke der Einzellagen von mehrlagigen Produkten (ISO 9863-2:1996) This European Standard was approved by CEN on 1996-02-19. CEN members are bound to comply with
16、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 Central Secretariat
17、 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 as the official ve
18、rsions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normali
19、sation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 Copyright reserved to CEN members Ref. No. EN ISO 9863-2:1996 EENISO 9863-2:1996 2 BSI 11-1998 Foreword The text of ENISO9863-2:1996 has been prepared by Technical Committee CEN/TC189, Geotextiles and
20、 geotextile-related products, the secretariat of which is held by IBN, in collaboration with Technical Committee ISO/TC38, Textiles. 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 1997,
21、and conflicting standards shall be withdrawn at the latest by February 1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece,
22、Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.EN ISO 9863-2:1996 BSI 11-1998 3 1 Scope This part of EN ISO 9863 specifies a method for determination of the thickness of single layers of multilayer products at specified pressures
23、. 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, subsequent amendments to or revis
24、ions 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. EN 963, Geotextiles and geotextile-related products Sampling and preparation of test specimens.
25、EN 964-1, Geotextiles and geotextile-related products Determination of thickness at specified pressures Part 1: Single layers. EN 30320, Geotextiles Identification on site. (ISO10320:1991) ISO 554, Standard atmosperes for conditioning and/or testing Specifications. 3 Principle The thickness of the i
26、ndividual layers of a specimen is measured under a specified pressure without the layers being mechanically separated. This requires prior determination of the mean value of the total thickness of the multilayer product at the desired pressure in accordance with EN964-1. 4 Apparatus 4.1 The apparatu
27、s (seeFigure 1) shall satisfy the following conditions: The apparatus shall consist of a frame with a fixed, flat lower plate and a movable flat upper plate of the same size. The lower and upper plates shall be rectangular. The upper plate shall be capable of being fixed at any position of its trave
28、l. Lower and upper plates shall be so rigid that they do not deflect by more than 0,1mm, measured over an area equivalent to that of the specimen, under the desired pressure. Four smooth intermediate identical plates are required of minimum 1,0mm thickness. They shall be sufficiently rigid not to de
29、flect during the tests and their area and shape shall be the same as those of the specimens. The frame shall be sufficiently high to accommodate a pile of five multilayer specimens and four intermediate plates between the lower and upper plates. 4.2 A device for measuring distance, accurate to0,1mm.
30、 5 Test specimens 5.1 Sampling Take samples in accordance with EN 963. 5.2 Number and dimensions Cut five rectangular specimens (200 mm 300 mm) from the sample. If this size is not representative of the product other more representative dimensions may be chosen. NOTEIt is suggested that test specime
31、ns identical to those prepared for the tensile test in accordance with ENISO10319 be used. 5.3 Specimen conditions The specimens shall be clean, and conditioned in accordance with ISO 554. 6 Procedure 6.1 Lay five conditioned specimens on top of one another, with one side exactly aligned retaining t
32、he sequence of the layers to form a pile. Place one separator plate between each specimen with one side exactly aligned with the specimen faces. Place the upper plate in position, again with one side exactly aligned. 6.2 Fix the upper plate at each corner. The distance from the lower plate is equal
33、to five times the mean value of thickness of the multilayer product previously measured at the specified pressure with an accuracy of 0,1 mm in accordance with EN 964-1. Make allowance for the separator plates by adding their thickness to the value calculated. 6.3 Draw or otherwise apply at least th
34、ree gauge lines on the aligned specimen face of the pile, perpendicular to both the lower and upper plates and evenly distributed over the face, the lines being at least 30 mm from one another. 6.4 Represent the boundaries between the individual layers of each specimen by median lines perpendicular
35、to the gauge lines and which extend at least 10 mm on both sides of the gauge lines (seeFigure 2).ENISO 9863-2:1996 4 BSI 11-1998 NOTEThis procedure can be simplified by photocopying the aligned face of the sample pile using a magnifying copier, or by optical measurement of the layer boundaries usin
36、g cross hairs. The magnification accuracy should previously be checked, e.g. by copying a sheet of graph paper, calibrated in mm. For individual layer thickness of 1 mm optical measurement should be used. At pressures 20 kPa the apparatus is rotated by90 after stacking of the samples (specimens vert
37、ical) to avoid a deformation of the lower layers by the weight of the upper layers and separator plates. 6.5 The intersection of the median line and the gauge line defines the individual layer boundary. 7 Calculation and expression of results The individual layer thickness is the difference between
38、two measuring points on a gauge line. Using the layer thicknesses thus determined for the five specimens, calculate the mean and standard deviation for each individual layer. NOTEThe sum of the mean values of the individual layers is equal to the mean total thickness. 8 Test report The test report s
39、hall include the following information: a) the number and date of this European Standard; b) the standard atmosphere used; c) a description of the geotextile tested in accordance with the standard of identification (seeEN 30320); d) thickness of the specimens and their individual layers; e) details
40、of apparatus used including specimen dimensions; f) the pressure used; g) any deviation from the standard.EN ISO 9863-2:1996 BSI 11-1998 5 Figure 1 Example of apparatus for determination of thickness of single layers of multilayer products 1 2 3 4 5 6 7 8 a) locking nuts fixing screw upper plate gui
41、de rod separation plate specimen 1 lower plate plan area of specimens aligned edges of specimens and platesENISO 9863-2:1996 6 BSI 11-1998 Figure 2 Example showing a gauge line, median lines, and measuring points (detail X from Figure 1) 10 11 12 13 14 gauge line lower face of separator plate upper
42、face of separator plate median lines measuring pointsEN ISO 9863-2:1996 BSI 11-1998 7 Annex A (informative) Bibliography EN ISO 10319, Geotextiles Wide-width tensile test. Annex ZZ (informative) Corresponding International and European Standards for which equivalents are not given in the text At the
43、 time of publication of this part of ISO9863, the edition of the following document was valid. All standards are subject to revision, and parties to agreements based on this part of ISO9863 are encouraged to investigate the possibility of applying the most recent edition of the document indicated be
44、low. Members of ISO and IEC maintain registers of currently valid International Standards. EN 963, ISO 9862:1990, Geotextiles Sampling and preparation of test specimens.8 blankBSEN ISO 9863-2:1996 BSI 11-1998 List of references See national foreword.BSI 389 Chiswick High Road London W4 4AL | | | | |
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46、t national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they pos
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