EN 622-5:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Faserplatten - Anforderungen - Teil 5: Anforderungen an Platten nach dem Trockenverfahren (MDF)Panneaux de fibres - Exigences - Partie 5: Exigences pour panneaux obtenus par procédé à sec (MDF)Fibreboards - Specifications - Part 5: Requirements for dry process boards (MDF)79.060.20Fibre and particle boardsICS:Ta slovenski standard je istoveten z:EN 622-5:2009SIST EN 622-5:2010en,fr,de01-april-2010SIST EN 622-5:2010SLOVENSKI
STANDARDSIST EN 622-5:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 622-5
November 2009 ICS 79.060.20 Supersedes EN 622-5:2006English Version
Fibreboards - Specifications - Part 5: Requirements for dry process boards (MDF)
Panneaux de fibres - Exigences - Partie 5 : Exigences pour panneaux obtenus par procédé à sec (MDF)
Faserplatten - Anforderungen - Teil 5: Anforderungen an Platten nach dem Trockenverfahren (MDF) This European Standard was approved by CEN on 3 October 2009.
CEN members are bound to comply with 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 CEN 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 translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 622-5:2009: ESIST EN 622-5:2010

Boil test according to EN 1087-1 - Modified procedure . 14 Bibliography . 15
Tables Table 1 — Load duration category . 5 Table 2 — Examples of load-duration assignment . 6 Table 3 — Requirements for general purpose boards for use in dry conditions (type MDF) . 7 Table 4 — Requirements for general purpose boards for use in humid conditions (type MDF.H) . 7 Table 5 — Requirements for load-bearing boards for use in dry conditions (type MDF.LA) . 8 Table 6 — Requirements for load-bearing boards for use in humid conditions (MDF.HLS) . 9 Table 7 — Requirements for light MDF boards for use in dry conditions (type L-MDF) . 9 Table 8 — Requirements for light MDF boards for use in humid conditions (type L.MDF.H) . 10 Table 9 — Requirements for ultra-light MDF boards for use in dry conditions (type UL1-MDF) . 10 Table 10 — Requirements for ultra-light MDF boards for use in dry conditions (type UL2-MDF) . 11 Table 11 — Requirements for use in rigid underlays in roofs and walls (type MDF.RWH) . 11 Table 12 — Maximum interval between test . 12 Table 13 — Supplementary properties . 12
1 Scope This European Standard specifies the requirements for dry process boards (MDF) as defined in EN 316. The values listed in this European Standard relate to product properties but they are not characteristic values to be used in design calculations1). 2 Normative references The following referenced documents are indispensable for the 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 310, Wood-based panels  Determination of modulus of elasticity in bending and of bending strength EN 311, Wood-based panels  Surface soundness  Test method EN 317, Particleboards and fibreboards  Determination of swelling in thickness after immersion in water EN 318, Wood based panels  Determination of dimensional changes associated with changes in relative humidity EN 319, Particleboards and fibreboards  Determination of tensile strength perpendicular to the plane of the board EN 320, Fibreboards  Determination of resistance to axial withdrawal of screws EN 321, Wood-based panels  Determination of moisture resistance under cyclic test conditions EN 326-1, Wood-based panels  Sampling, cutting and inspection  Part 1: Sampling and cutting of test pieces and expression of test results EN 326-2, Wood-based panels  Sampling, cutting and inspection  Part 2: Quality control in the factory EN 326-3, Wood-based panels  Sampling, cutting and inspection  Part 3: Inspection of an isolated lot of panels EN 382-1, Fibreboards  Determination of surface absorption  Part 1: Test method for dry process fibreboards EN 622-1, Fibreboards  Specifications  Part 1: General requirements EN 1087-1:1995, Particleboards  Determination of moisture resistance  Part 1: Boil test EN 12871, Wood-based panels  Performance specifications and requirements for load bearing boards for use in floors, walls and roofs EN 13271, Timber fasteners  Characteristic load-carrying capacities and slip-moduli for connector joints EN 13446, Wood-based panels  Determination of withdrawal capacity of fasteners
1) Such characteristic values (e.g. for use in design calculation in EN 1995-1-1) are either given in EN 12369-1 or derived by testing according to EN 789, EN 1058 and ENV 1156. SIST EN 622-5:2010

Permanent
More than ten years
Long-term
six months to ten years
Medium-term
one week to six months
Short-term
Less than one week
Instantaneous
Permanent Self weight
Long-term Storage
Medium-term Imposed floor load, snow
Short-term Snow, wind
Instantaneous Wind, accidental load
4 Requirements 4.1 General Dry process boards shall comply with the general requirements of EN 622-1 together with the relevant requirements set out in 4.2, 4.3, 4.4, 4.5 and 4.6 of this European Standard. Some supplementary properties and their appropriate test methods are given in Clause 6. The requirements in Tables 3 to 11 shall be met by 5 percentile values (95 percentile values in the case of swelling in thickness), based on the mean test values for individual panels and calculated in accordance with EN 326-1. In the case of swelling in thickness, they shall be equal to or less than the values in the tables, and in the case of all other properties, they shall be equal to or greater than the values in Tables 3 to 11. The values in Tables 3 to 11 for both bending strength and modulus of elasticity shall apply to test results obtained in the weakest direction in the plane of the panel. Properties not required for specific thickness ranges are marked "—". With the exception of swelling in thickness and internal bond after boil test (see Tables 4, 6, 8 and 11), the values given in the tables are characterised by a moisture content in the material corresponding to a temperature of 20 °C and a relative humidity of 65 %. The values given for swelling in thickness and internal bond after boil test are characterised by a
...