SIST EN 326-3:2004

Wood-based panels - Sampling, cutting and inspection - Part 3: Inspection of an isolated lot of panels

This European Standard specifies methods for the verification of compliance of one or more properties of an isolated lot of wood-based panels with the requirements of the relevant EN specification standards. Different sample sizes are given depending on wether or not the production is controlled according to EN 326-2.
For panels, the production of which is controlled in accordance to EN 326-2 this European Standard can be used in case of a dispute. It is not applicable for the factory production control. For these purposes, EN 326-2 applies.
In this standard, verification of compliance is based on the testing of small test pieces.

Holzwerkstoffe - Probenahme, Zuschnitt und Überwachung - Teil 3: Abnahmeprüfung eines einzelnen Loses von Platten

Diese Europäische Norm legt Verfahren fest zum Nachweis der Übereinstimmung von einer oder mehreren Eigen-schaften eines Loses von Platten mit den Anforderungen der jeweiligen EN-Anforderungsnorm fest. Abhängig davon, ob die Fertigung nach EN 326-2 kontrolliert wird oder nicht, werden unterschiedliche Stichprobenumfänge angegeben.
Für Platten, deren Fertigung nach EN 326-2 kontrolliert wird, kann diese Europäische Norm im Streitfall angewendet werden. Sie gilt nicht für werkseigene Produktionskontrolle. Hierfür gilt EN 326-2.
In dieser Norm erfolgt der Nachweis der Übereinstimmung anhand der Prüfung kleiner Prüfkörper.

Panneaux a base de bois - Echantillonnage, découpe et contrôle - Partie 3: Contrôle d'un lot isolé de panneaux

La présente norme européenne prescrit des méthodes pour la vérification de la conformité d'une ou plusieurs caractéristiques d'un lot de panneaux, par rapport aux exigences des normes européennes de spécifications concernées. Selon que la production est contrôlée conformément a EN 326-2, différentes dimensions d'échantillon sont fournies.
Pour les panneaux dont la production est contrôlée selon EN 326-2, la présente norme européenne peut etre utilisée en cas de litige. Elle n'est pas applicable pour le contrôle de qualité en usine.
Dans la présente norme, la vérification de la conformité est basée sur l'essai de petites éprouvettes.

Lesne plošče – Vzorčenje, razžagovanje in kontrola – 3.del: Kontrola posamezne partije plošč

General Information

• Status: Published
• Publication Date: 31-Dec-2003
• ICS: 79.060.01 - Wood-based panels in general
• Technical Committee: LLZ - Les, lesni izdelki in zaščita lesa
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2004
• Due Date: 01-Jan-2004
• Completion Date: 01-Jan-2004
• Directive: 89/106/EEC - Construction products
• Ref Project: EN 326-3:2003 - Wood-based panels - Sampling, cutting and inspection - Part 3: Inspection of an isolated lot of panels

Relations

• Replaces: SIST EN 326-3:2000 - Wood-based panels - Sampling, cutting and inspection - Part 3: Inspection of a consignment of panels
• Effective Date: 01-Jan-2004

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Holzwerkstoffe - Probenahme, Zuschnitt und Überwachung - Teil 3: Abnahmeprüfung eines einzelnen Loses von PlattenPanneaux a base de bois - Echantillonnage, découpe et contrôle - Partie 3: Contrôle d'un lot isolé de panneauxWood-based panels - Sampling, cutting and inspection - Part 3: Inspection of an isolated lot of panels79.060.01Wood-based panels in generalICS:Ta slovenski standard je istoveten z:EN 326-3:2003SIST EN 326-3:2004en01-januar-2004SIST EN 326-3:2004SLOVENSKI
STANDARDSIST EN 326-3:20001DGRPHãþD



SIST EN 326-3:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 326-3November 2003ICS 79.060.01Supersedes EN 326-3:1998English versionWood-based panels - Sampling, cutting and inspection - Part 3:Inspection of an isolated lot of panelsPanneaux à base de bois - Echantillonnage, découpe etcontrôle - Partie 3: Contrôle d'un lot isolé de panneauxHolzwerkstoffe - Probenahme, Zuschnitt und Überwachung- Teil 3: Abnahmeprüfung eines einzelnen Loses vonPlattenThis European Standard was approved by CEN on 1 September 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 bibliographical 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 member 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, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 326-3:2003 ESIST EN 326-3:2004



EN 326-3:2003 (E)2ContentspageForeword.31Scope.42Normative references.43Symbol.43.1Letter symbols (see also EN 326-1 and EN 326-2).43.2Indices (see also EN 326-1).54Terms and definitions.55Verification of compliance.55.1Inspection body.55.2Sampling.65.2.1Lot identification.65.2.2Sampling of panels.65.3Inspection by variables.85.3.1Sampling and cutting of test pieces.85.3.2Expression of test results.85.3.3Evaluation of test results.85.4Inspection by attributes.95.4.1General.95.4.2Single sampling plan.95.4.3Double sampling plan.96Inspection report.10Bibliography.11SIST EN 326-3:2004



EN 326-3:2003 (E)3ForewordThis document (EN 326-3:2003) has been prepared by Technical Committee CEN/TC 112 “Wood-basedpanels”, the secretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by May 2004, and conflicting national standards shall be withdrawn at thelatest by May 2004.This standard is one of a series on sampling, cutting and inspection of wood-based panels. The other parts ofthis series are listed in clause 2.This European Standard supersedes EN 326-3:1998. Compared to the version EN 326-3:1998 the followingmodifications have been made:a)The title has been changed to ‘isolated’ lot.b)Inspection lot sizes and sample sizes modified taking into account ISO 2859-2 for isolated lot inspection.c)Different sample sizes are given depending whether or not the production is controlled according toEN 326-2.According to the CEN/CENELEC Internal Regulations, the national standards organizations 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.SIST EN 326-3:2004



EN 326-3:2003 (E)41 ScopeThis European Standard specifies methods for the verification of compliance of one or more properties of anisolated lot of wood-based panels with the requirements of the relevant EN specification standards. Differentsample sizes are given depending on whether or not the production is controlled according to EN 326-2.For panels, the production of which is controlled in accordance to EN 326-2 this European Standard can beused in case of a dispute. It is not applicable for the factory production control. For these purposes, EN 326-2applies.In this standard, verification of compliance is based on the testing of small test pieces.2 Normative referencesThis 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 listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies (including amendments).EN 326-1:1994, Wood-based panels — Sampling, cutting and inspection — Part 1: Sampling and cutting oftest pieces and expression of test results.EN 326-2, Wood-based panels — Sampling, cutting and inspection — Part 2: Quality control in the factory.ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed byacceptable quality limit (AQL) for lot-by-lot inspection.ISO 2859-2, Sampling procedures for inspection by attributes — Part 2: Sampling plans indexed by limitingquality (LQ) for isolated lot inspection.3 Symbol3.1 Letter symbols (see also EN 326-1 and EN 326-2)AcAcceptance numberAQLAcceptable quality levelLLower specification limitmNumber of test pieces cut from each single panel of the sample, in either directionnSample size (number of panels)NNumber of panels in one lot, i.e. lot sizeReRejection numbertSingle-sided 5 % value factor related to the number of panelsUUpper specification limitSIST EN 326-3:2004



EN 326-3:2003 (E)53.2 Indices (see also EN 326-1)cuCumulative valuedRelated to double sample planl,attrRelated to lot inspection by attributesl,varRelated to lot inspection by variablesiSerial test piece number within a panel (i = 1, 2, ., n)jTest
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