EN ISO 16663-2-2003 en Fishing nets Method of test for the determination of mesh size Part 2 Length of mesh (Incorporating Corrigendum April 2006)《捕鱼网 网眼尺寸测定的试验方法 第2部分 网眼长度 ISO 166.pdf

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1、BRITISH STANDARDBS EN ISO 16663-2:2003Incorporating Corrigendum No. 1Fishing nets Method of test for the determination of mesh size Part 2: Length of meshThe European Standard EN ISO 16663-2:2003 has the status of a British StandardICS 65.150g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g

2、54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 16663-2:2003This British Standard was published under the authority of the Standards Policy and Strategy Committee on 13 June 2003 BSI 2006ISBN 0 58

3、0 42052 3National forewordThis British Standard is the official English language version of EN ISO 16663-2:2003, including Technical Corrigendum April 2006. It is identical with ISO 16663-2:2003.The UK participation in its preparation was entrusted to Technical Committee TCI/77, Ropes, cordage and f

4、ishing nets, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue

5、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. Users are responsible for its correct a

6、pplication. 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, and keep UK interests informed; mo

7、nitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 6, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates w

8、hen the document was last issued.Amendments issued since publicationAmd. No. Date Comments16427Corrigendum No. 131 Augst 2006 Changes to 6.1 and 7.1EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 16663-2June 2003ICS 65.150 Incorporating Corrigendum April 2006English versionFishing nets - Metho

9、d of test for the determination of mesh size -Part 2: Length of mesh (ISO 16663-2:2003)Filets de pche - Mthode dessai pour la dterminationdes dimensions de la maille - Partie 2: Longueur de maille(ISO 16663-2:2003)Fischnetze - Prfverfahren zur Bestimmung derMaschenweite - Teil 2: Maschenlnge (ISO 16

10、663-2:2003)This European Standard was approved by CEN on 2 January 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliograph

11、ical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN memb

12、er into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, No

13、rway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reservedwor

14、ldwide for CEN national Members.Ref. No. EN ISO 16663-2:2003 EEN ISO 16663-2:2003 (E)2ContentspageForeword. 31 Scope and field of application . 42 Normative references . 43 Terms and definitions. 44 Principle . 55 Requirements for testing 56 Procedure. 57 Calculation and expression of results 58 Tes

15、t report 6EN ISO 16663-2:2003 (E)3ForewordThis document (EN ISO 16663-2:2003) has been prepared by Technical Committee CEN/TC 248 “Textiles andtextile products“, the secretariat of which is held by BSI, in collaboration with Technical Committee ISO/TC 38“Textiles“.This European Standard shall be giv

16、en the status of a national standard, either by publication of an identical text orby endorsement, at the latest by December 2003, and conflicting national standards shall be withdrawn at the latestby December 2003.According to the CEN/CENELEC Internal Regulations, the national standards organizatio

17、ns of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.EN IS

18、O 16663-2:2003 (E)41 Scope and field of applicationThis European Standard specifies a method for the determination of mesh length of fishing nets using a ruler. It isapplicable to passive fishing gears.2 Normative referencesThis European Standard incorporates, by dated or undated reference, provisio

19、ns from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amen

20、dment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN ISO 1107, Fishing nets - Netting - Basic terms and definitions (ISO 1107:2003)ISO 139, Textiles - Standard atmospheres for conditioning and testing3 Terms and definitionsFor t

21、he purposes of this document, the following terms and definitions apply.3.1passive fishing gearfishing gear requiring action of the fish to catch itNOTE Mostly stationary equipment often, but not always, anchored at the seabed. Gill nets and entangling nets areexamples of passive gears.3.2gill netpa

22、nel of netting usually of rectangular shape, made of thin twine, in which fish is caught in the meshes. The net issuspended vertically in the water by floats and weightsNOTE The net is held vertically in the water by floats and weights, e.g. drift net, set gill net.3.3entangling netloosely hung vert

23、ical net that catches fish by entangling rather than enmeshing.3.4trammel netbottom set net which is made with three walls of netting, the two outer walls of larger mesh size than the looselyhung inner netting panelNOTE The fish become entangled in the inner small meshed wall after passing through t

24、he outer wall and push themselvesinto the second outer wall, thus forming a bag.EN ISO 16663-2:2003 (E)54 PrincipleThe netting, in both dry and wet states, is manually straightened in the N-direction. The mesh length is measuredwith a ruler.5 Requirements for testing5.1 Atmosphere for testingAll spe

25、cimens to be tested in the dry state shall be exposed to the standard atmosphere for testing specified in ISO139, until they have reached equilibrium.NOTE For netting of man-made fibres, a period of 24 h exposure is generally sufficient.Where it is not possible to carry out the tests in the standard

26、 atmosphere the tests shall be carried out immediatelyafter removal of the sample from the standard atmosphere.5.2 Testing in the wet stateSpecimens to be tested in the wet state shall either be:a) immersed in tap water of (20 2)C for not less than 12 hours ;b) or immersed in a solution of wetting a

27、gent at a temperature of (20 2)C for not less than 1 hour.6 Procedure6.1 Straighten the netting manually in the N-direction. Using a ruler, measure the distance from the first knotor joint exclusive to the eleventh sequential knot or joint inclusive with an accuracy of 1 mm (as shown in Figure 1).6.

28、2 At least 10 single measurements on each piece of netting shall be carried out, unless otherwise agreedbetween the interested parties.XXXXXXXXXXXFigure 1 Measuring the mesh length7 Calculation and expression of results7.1 Record the mesh length, in millimetres, for each measurement. 7.2 Calculate t

29、he average size of mesh length determined in accordance with clause 6 and rounded up to thenext millimetre.7.3 Calculate the coefficient of variation and the confidence interval.The mesh length is obtained by dividing the measured length by 5. EN ISO 16663-2:2003 (E)68 Test reportThe test report sha

30、ll include the following:a) statement that the tests were performed in accordance with this European Standard;b) date of the test;c) description of the netting including the material and the type of yarn (twisted, or braided), the type of netting(knotted or knotless), the mesh size, the nominal line

31、ar density of the twine as per EN ISO 1107;d) average size of length of the mesh in millimetre;e) number of measurements;f) state of the netting (dry or wet);g) coefficient of variation and the confidence interval;h) any deviation from the specified test procedure.blankBS EN ISO16663-2:2003BSI389 Ch

32、iswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent 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.RevisionsBritish Standards are updated by

33、amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standar

34、d would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the

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36、esponse to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European and international standards throu

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39、ccess to British Standards via British Standards Online can be found at http:/www.bsi- information about BSI is available on the BSI website at http:/www.bsi-.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standa

40、rdization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI.This does not precl

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