Fibreboards - Specifications - Part 2: Requirements for hardboards

This European Standard specifies the requirements for hardboards as defined in EN 316.  The values listed in this standard relate to product properties but they are not characteristic values to be used in design calculation.

Faserplatten - Anforderungen - Teil 2: Anforderungen an harte Platten

Panneaux de fibres - Exigences - Partie 2: Exigences pour panneaux durs

Vlaknene plošče - Specifikacije - 2. del: Zahteve za trde plošče

General Information

Status
Published
Publication Date
27-Apr-2004
Technical Committee
Current Stage
9093 - Decision to confirm - Review Enquiry
Completion Date
03-Dec-2020

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EN 622-2:2004
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SLOVENSKI STANDARD
SIST EN 622-2:2004
01-september-2004
1DGRPHãþD
SIST EN 622-2:1998
9ODNQHQHSORãþH6SHFLILNDFLMHGHO=DKWHYH]DWUGHSORãþH
Fibreboards - Specifications - Part 2: Requirements for hardboards
Faserplatten - Anforderungen - Teil 2: Anforderungen an harte Platten
Panneaux de fibres - Exigences - Partie 2: Exigences pour panneaux durs
Ta slovenski standard je istoveten z: EN 622-2:2004
ICS:
79.060.20 9ODNQHQHLQLYHUQHSORãþH Fibre and particle boards
SIST EN 622-2:2004 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 622-2:2004
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SIST EN 622-2:2004
EUROPEAN STANDARD
EN 622-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2004
ICS 79.060.20 Supersedes EN 622-2:1997
English version
Fibreboards - Specifications - Part 2: Requirements for
hardboards

Panneaux de fibres - Exigences - Partie 2: Exigences pour Faserplatten - Anforderungen - Teil 2: Anforderungen an

panneaux durs harte Platten
This European Standard was approved by CEN on 2 February 2004.

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 Central Secretariat 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 Central Secretariat has the same status as the official

versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,

Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,

Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 622-2:2004: E

worldwide for CEN national Members.
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SIST EN 622-2:2004
EN 622-2:2004 (E)
Page
Contents

Foreword..............................................................................................................................................................3

1 Scope ......................................................................................................................................................4

2 Normative references ............................................................................................................................4

3 Terms and definitions............................................................................................................................5

4 Requirements.........................................................................................................................................6

4.1 General....................................................................................................................................................6

4.2 Requirements for general purpose boards.........................................................................................6

4.3 Requirements for load-bearing boards ...............................................................................................8

5 Verification of compliance ....................................................................................................................9

5.1 General....................................................................................................................................................9

5.2 External control......................................................................................................................................9

5.3 Factory production control...................................................................................................................9

6 Marking .................................................................................................................................................10

6.1 General purpose boards .....................................................................................................................10

6.2 Load-bearing boards ...........................................................................................................................10

6.3 Colour coding.......................................................................................................................................10

Annex A (normative) Supplementary properties ...........................................................................................11

(normative)

Annex B Boil test according to EN 1087-1:1995 — Modified procedure ................................12

Annex C (normative) Determination of bending strength after boil test according to EN 1087-

1:1995 — Modified procedure.............................................................................................................13

Bibliography ......................................................................................................................................................14

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SIST EN 622-2:2004
EN 622-2:2004 (E)
Foreword

This document (EN 622-2:2004) has been prepared by Technical Committee CEN/TC 112 “Wood-based

panels”, 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 identical

text or by endorsement, at the latest by October 2004, and conflicting national standards shall be withdrawn

at the latest by October 2004.
Annexes A, B and C are normative.

This standard is one of a series specifying requirements for fibreboards. The other parts of this series are

listed in clause 2 and in the bibliography.
This document supersedes EN 622-2:1997.
The following modifications have been made:

a) The quality requirements of the panel types HB, HB.HLA1 and HB.HLA2 have been modified.

b) The test interval for moisture resistance has been reduced in accordance with EN 13986.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den-

mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-

bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and

United Kingdom.
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SIST EN 622-2:2004
EN 622-2:2004 (E)
1 Scope

This European Standard specifies the requirements for hardboards as defined in EN 316.

The values listed in this standard relate to product properties but they are not characteristic values to be used in

design calculations .
2 Normative references

This 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 listed

hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to

this European Standard only when incorporated in it by amendment or revision. For undated references the

latest edition of the publication referred to applies (including amendments).

EN 310:1993, Wood-based panels — Determination of modulus of elasticity in bending and of bending

strength.

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 hu-

midity.

EN 319, Particleboards and Fibreboards — Determination of tensile strength perpendicular to the plane of the

board.

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 382-2, Fibreboards — Determination of surface absorption — Part 2: Test method for hardboards.

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 13986:2002, Wood-based panels for use in construction — Characteristics, evaluation of conformity and

marking.

ENV 1995-1-1:1993, Eurocode 5 — Design of timber structures — Part 1-1: General rules and rules for

buildings
ISO 3340, Fibre building boards — Determination of sand content.

1) Such characteristic values (e.g. for use in design calculation in ENV 1995-1-1) are either given EN 12369-1 or de-

rived by testing according to EN 789, EN 1058 and ENV 1156.
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SIST EN 622-2:2004
EN 622-2:2004 (E)
3 Terms and definitions

For the purposes of this European Standard, the following terms and definitions apply.

3.1
dry conditions

conditions corresponding to service class 1 of ENV 1995-1-1:1993 which is characterised by a moisture con-

tent in the material corresponding to a temperature of 20 °C and a relative humidity of the surrounding air

only exceeding 65 % for a few weeks per year
[EN 13986:2002]
3.2
humid conditions

conditions corresponding to service class 2 of ENV 1995-1-1:1993 which is characterised by a moisture con-

tent in the material corresponding to a temperature of 20 °C and a relative humidity of the surrounding air

only exceeding 85 % for a few weeks per year
[EN 13986:2002]
3.3
external conditions

conditions corresponding to service class 3 of ENV 1995-1-1:1993 which is characterised by climatic condi-

tions leading to higher moisture contents than in service class 2
[EN 13986:2002]
3.4
general purpose use
all non-load bearing applications, e.g. furniture and fitments
3.5
load-bearing use

use in a load-bearing construction, i.e. an organized assembly of connected parts designed to provide me-

chanical resistance and stability to the works. Also referred to as “structure”
3.6
load duration category
see Table 1
Table 1 — Load duration categories
Order of accumulated duration of
Load duration category Examples of loading
characteristic load
Permanent more than 10 years self weight
Long-term 6 months to 10 years storage
Medium-term 1 week to 6 months imposed load
Short-term less than one week snow , wind
Instantaneous accidental loading

In areas which have a heavy snow load for a prolonged period of time, part of the load should be regarded as medium-term.

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SIST EN 622-2:2004
EN 622-2:2004 (E)
4 Requirements
4.1 General

Hardboards shall comply with the general requirements of EN 622-1 together with the relevant requirements set

out in 4.2 and 4.3 of this standard. The requirements for some supplementary properties are given in annex A.

The requirements in Tables 2 to 7 shall be met by 5 percentile values (95 percentile values in the case of swel-

ling 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 the Tables. The values in

the Tables for both bending strength and modulus of elasticity shall apply to test results obtained in any direc-

tion in the plane of the panel.

With the exception of swelling in thickness, internal bond after boil test (see Tables 3, 4, 6, 7) and bending

strength after boil test (see Table 7), 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, internal bond after boil test and bending
...

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