BS EN 13183-1-2002 Moisture content of a piece of sawn timber - Determination by oven dry method《一块锯木材的含水量 用烘干法测定》.pdf

《BS EN 13183-1-2002 Moisture content of a piece of sawn timber - Determination by oven dry method《一块锯木材的含水量 用烘干法测定》.pdf》由会员分享，可在线阅读，更多相关《BS EN 13183-1-2002 Moisture content of a piece of sawn timber - Determination by oven dry method《一块锯木材的含水量 用烘干法测定》.pdf（8页珍藏版）》请在麦多课文档分享上搜索。

1、BRITISH STANDARD BS EN 13183-1:2002 Incorporating Corrigendum No. 1 Moisture content of a piece of sawn timber Part 1: Determination by oven dry method The European Standard EN 13183-1:2002 has the status of a British Standard ICS 79.040 BS EN 13183-1:2002 This British Standard, having been prepared

2、 under the direction of the Building and Civil Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 8 May 2002 BSI 18 December 2003 ISBN 0 580 39685 1 National foreword This British Standard is the official English lang

3、uage version of EN 13183-1:2002, including Corrigendum September 2003. The UK participation in its preparation was entrusted by Technical Committee B/543, Round and sawn timber, to Subcommittee B/543/1, Timber terminology and measurement, which has the responsibility to: A list of organizations repr

4、esented on this subcommittee can be obtained on request to its secretary. Cross-references 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 Corresp

5、ondence Index”, or by using the “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

6、of itself confer immunity from legal obligations. aid enquirers to understand the text; 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 promulga

7、te them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comment

8、s 14847 18 December 2003 Correction to Clause 5 and Figure 1EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN131831 April2002 ICS79.040 Englishversion MoisturecontentofapieceofsawntimberPart1: Determinationbyovendrymethod TeneurenhumiditdunepicedeboissciPartie1: Dterminationparlamthodepardessiccatio

9、n FeuchtegehalteinesStckesSchnittholzTeil1: BestimmungdurchDarrverfahren ThisEuropeanStandardwasapprovedbyCENon29December2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Upt

10、odatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownla

11、nguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EU

12、ROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN131831:2002E Incorporating corrigendum September 2003 tuC a

13、test o ecilsf furc lloces sstdna noi miminum m 02m idmni noisne teh ridetco noif teh gr,nia at a tsidecna of 0,m 3 frmo ne enoo dr teh toreh of the eceip (or m eht tainiop dt of ssel seceip t0 nah,6 m ol)gn. Teh teb llahs ecils tse free from rew nisa doodn featruse hcus sa rab,k tonks r dnaekcop nis

14、ets. fI hcus featruse xetsi, tuc the tets f ecilsrmo teh aenrets raelc raae towards the ctnere of the test ( eceipsgiF eeure 1). EN131831:2002(E) 2 Contents page FOREWORD 3 1S C O P E 3 2 NORMATIVEREFERENCES 3 3 TERMSANDDEFINITIONS 4 4 APPARATUS 4 5 PROCEDURE 4 6 CALCULATIONANDEXPRESSIONOFTHERESULTS

15、 5EN131831:2002(E) 3 Foreword ThisdocumentEN131831:2002hasbeenpreparedbyCEN/TC175“Roundandsawn timber”,thesecretariatofwhichisheldbyAFNOR. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyOctober2002,andconflictingnational

16、 standardsshallbewithdrawnatthelatestbyOctober2002. Thisstandardisoneofaseries,dealingwithmethodsofmeasurementforroundtimberand sawntimber. Otherstandardsinthisseriesare: EN131832 : MoisturecontentofapieceofsawntimberPart2:Estimationby electricalresistancemethod. EN13091 : RoundandsawntimberMethodof

17、measurementofdimensions Part1:Sawntimber. EN1310 : RoundandsawntimberMethodofmeasurementoffeatures. EN1311 : RoundandsawntimberMethodofmeasurementofbiological degrade. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizations ofthefollowingcountriesareboundtoimplementthisEuropea

18、nStandard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,Switzerlandandthe UnitedKingdom. 1Scope ThisEuropeanStandarddefinesthemethodfordeterminingthemoisturecontentofapieceof sawntimber. Thismetho

19、disconsideredasthereferencemethod. Thisstandardappliestosawntimber,andtimberwhichhasbeenplanedormechanically surfacedbyothermeans. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromother publications.Thesenormativereferencesarecitedattheappropriateplacesin

20、thetext,and thepublicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoor revisionsofthesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitby amendmentorrevision.Forundatedreferencesthelatesteditionofthepublicationreferredto applies(includingamendments). EN8441, Roundan

21、dsawntimberTerminologyPart1:Generaltermscommontoround timberandsawntimber. EN8443, RoundandsawntimberTerminologyPart3:Generaltermsrelatingtosawn timber.EN131831:2002(E) 4 EN8444, RoundandsawntimberTerminologyPart4:Termsrelatingtomoisturecontent. EN8446, RoundandsawntimberTerminologyPart6:Termsrelati

22、ngtodimensionsof sawntimber. EN8447, RoundandsawntimberTerminologyPart7:Termsrelatingtoanatomical structureoftimber. EN8449, RoundandsawntimberTerminologyPart9:Termsrelatingtofeaturesofsawn timber. EN84412, RoundandsawntimberTerminologyPart12:Additionaltermsandgeneral index. 3 Termsanddefinitions Fo

23、rthepurposesofthisEuropeanStandard,thetermsanddefinitionsofEN8441,EN8443, EN8444 ,EN8446 ,EN8447 ,EN8449andEN 84412apply. 4Apparatus Balanceaccurateto0,1g,ifthemassofthetestsliceislikelytobemorethan100ginan ovendrystate. Balanceaccurateto0,01g,ifthemassofthetestsliceislikelytobelessthan100ginan oven

24、drystate. Equipmentfordryingwood,ensuringfreeinternalcirculationofairandcapableofmaintaining atemperatureof(1032)C. 5Procedure oecilstsetatuCffudnanoitcesssorcll miminum02mmmidetninoisnridehetcfonoithe gr,niatniopataybtam003mfromtiehreodnefthteeeceipts , rottaehmitniopdfitheceipe tsselsihm006namgnol

25、.Thetelahsecilstsfeblreefromrewnisfdnadooetarusahcusse rabk,ktonrdnasekcopnisetsfI.hcusftaeruxesetsi,tucthteefecilstsrmothraenetseraelc areaotwadrhtseecnterofhteetptsiecees(eFiuger1). cnIorroptagni corriegmudn tpeSmereb 3002 Cut a test slice of full cross section and minimum 20 mm dimension in the d

26、irection of the grain, at a distance of 0,3 m from one end or the other of the piece (or at the mid point of pieces less than 0,6 m long). The test slice shall be free from resin wood and features such as bark, knots and resin pockets. If such features exist, cut the test slice from the nearest clea

27、r area towards the centre of the test piece (see Figure 1). EN131831:2002(E) 5 Dimensionsinmillimetres Key 1Testpiece 2Testslice Figure1Positionofthetestslice Weighthetestsliceimmediatelyaftercutting. Drytheweighedtestsliceatatemperatureof(1032)C,untilthedifferenceinmass betweentwosuccessiveweighing

28、sseparatedbyanintervalof2hoursislessthan0,1%. Ifitisnotpossibletoweighthetestsliceimmediatelyaftercutting,putthetestsliceinasealed containertopreventmoisturechangeandweighwithin2hours. Carryoutthedryweightmeasurementimmediatelyafterthetestslicehasbeentakenoutof theoven. Inordertoobtainaccurateresult

29、s,timberwhichcontainshighamountsofvolatile components(resin)shouldbedriedundervacuumconditions(pressure100Pa) ,atlow temperature(max.50C)orinadesiccatorcontaininganhygroscopicsubstance. 6 Calculationandexpressionoftheresults Calculatethemoisturecontent, ,asapercentagebymass,usingtheformula: mm m x 1

30、0 0 100 where m 1 isthemassofthetestslicebeforedrying,ingrams; m 0 isthemassoftheovendrytestslice,ingrams; isthemoisturecontent,inpercent. Expresstheresulttothenearest0,1percentagepointmoisturecontent.BS EN 13183-1:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI i

31、s 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. Revisions British Standards are updated by amendment or revision. Users of British Standards should make su

32、re 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 Standard would inform the Secretary of the technical committee respons

33、ible, 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 latest editions of standards. Buying standards Orders for all

34、 BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI po

35、licy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Servic

36、e. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standards developments and r

37、eceive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding online access to British Standards via British Standards Online

38、 can be found at http:/www.bsi- Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under t

39、he 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 preclude the free use, in the course of implement

40、ing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.