EN 13183-3-2005 en Moisture content of a piece of sawn timber - Part 3 Estimation by capacitance method《锯材水份测量 第3部分 电容估算法》.pdf
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1、BRITISH STANDARD BS EN 13183-3:2005 Moisture content of a piece of sawn timber Part 3: Estimation by capacitance method The European Standard EN 13183-3:2005 has the status of a British Standard ICS 79.040 BS EN 13183-3:2005 This British Standard was published under the authority of the Standards Po
2、licy and Strategy Committee on 31 March 2005 BSI 31 March 2005 ISBN 0 580 45799 0 National foreword This British Standard is the official English language version of EN 13183-3:2005. The UK participation in its preparation was entrusted to Technical Committee B/543, Round and sawn timber, which has
3、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 may be found in the BSI Catalogue under the section ent
4、itled “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 application. Complian
5、ce 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 the UK interests informed; monitor related in
6、ternational 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 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document
7、 was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN131833 March2005 ICS79.040 Englishversion MoisturecontentofapieceofsawntimberPart3:Estimation bycapacitancemethod TeneurenhumiditdunepicedeboissciPartie3: Estimationparmthodec
8、apacitive FeuchtegehalteinesStckesSchnittholzTeil3: SchtzungdurchkapazitivesMessverfahren ThisEuropeanStandardwasapprovedbyCENon3February2005. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithouta
9、nyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCEN
10、memberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,
11、Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCE
12、NnationalMembers. Ref.No.EN131833:2005:EEN 13183-3:2005 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Moisture content estimation with hand-held capacitance moisture meters .4 4.1 Limits of application4 4.2 Apparatus .5 4.3 Initial type testing 5 4.4 P
13、rocedure .5 4.5 Expression of results 5 5 Moisture content estimation with in-line capacitance moisture meters5 5.1 Limits of application5 5.2 Apparatus and measuring set-up.6 5.3 Initial type testing 6 5.4 Calibration 6 5.5 Procedure .6 5.6 Expression of results 6 Annex A (normative) Procedure for
14、assessing the accuracy of capacitance moisture meters7 Annex B (informative) Moisture content of a lot 9 Bibliography 10 EN 13183-3:2005 (E) 3 Foreword This document (EN 13183-3:2005) has been prepared by Technical Committee CEN/TC 175 “Round and sawn timber”, the secretariat of which is held by AFN
15、OR. 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 September 2005, and conflicting national standards shall be withdrawn at the latest by September 2005. This document is one of a series, dealing
16、 with methods of measurement for round timber and sawn timber. Other standards in this series are: EN 13183-1, Moisture content of a piece of sawn timber - Part 1: Determination by oven dry method EN 13183-2, Moisture content of a piece of sawn timber - Part 2: Estimation by electrical resistance me
17、thod EN 1309-1, Round and sawn timber - Method of measurement of dimensions - Part 1: Sawn timber EN 1310, Round and sawn timber - Method of measurement of features EN 1311, Round and sawn timber - Method of measurement of biological degrade This document includes a Bibliography. According to the CE
18、N/CENELEC Internal 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
19、, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 13183-3:2005 (E) 4 1 Scope This document specifies a non destructive method for estimating the moisture content of a piece of sawn timber. The standard describes the conditions which
20、 shall be met by a capacitance measuring system to derive a moisture content estimate for individual pieces of timber. The standard applies to sawn timber and timber which has been planed or surfaced by other means. 2 Normative references The following referenced documents are indispensable for the
21、application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 844-1:1995, Round and sawn timber - Terminology - Part 1: General terms common to round timber and sawn tim
22、ber EN 844-3:1995, Round and sawn timber - Terminology - Part 3: General terms relating to sawn timber EN 844-4:1997, Round and sawn timber Terminology - Part 4: Terms relating to moisture content EN 844-6:1997, Round and sawn timber - Terminology - Part 6: Terms relating to dimensions of sawn timbe
23、r EN 844-7:1997, Round and sawn timber - Terminology - Part 7: Terms relating to anatomical structure of timber EN 844-9:1997, Round and sawn timber - Terminology - Part 9: Terms relating to features of sawn timber EN 844-12:2000, Round and sawn timber - Terminology - Part 12: Additional terms and g
24、eneral index EN 13183-1, Moisture content of a piece of sawn timber - Part 1: Determination by oven dry method EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:1999) 3 Terms and definitions For the purposes of this document, the terms a
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