ISO 16895-1:2008
(Main)Wood-based panels — Dry-process fibreboard — Part 1: Classifications
Wood-based panels — Dry-process fibreboard — Part 1: Classifications
ISO 16895-1:2008 specifies a classification matrix, related mandatory tests and thickness ranges for ultra-low-, low-, medium-, and high-density dry process fibreboard.
Panneaux à base de bois — Panneaux de fibres obtenus par procédé à sec — Partie 1: Classifications
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 16895-1
First edition
2008-03-15
Wood-based panels — Dry-process
fibreboard —
Part 1:
Classifications
Panneaux à base de bois — Panneaux de fibres obtenus par procédé à
sec —
Partie 1: Classifications
Reference number
ISO 16895-1:2008(E)
©
ISO 2008
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ISO 16895-1:2008(E)
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ii © ISO 2008 – All rights reserved
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ISO 16895-1:2008(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
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International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 16895-1 was prepared by Technical Committee ISO/TC 89, Wood-based panels, Subcommittee SC 1,
Fibre boards.
ISO 16895 consists of the following parts, under the general title Wood-based panels — Dry-process
fibreboard:
⎯ Part 1: Classifications
⎯ Part 2: Requirements
© ISO 2008 – All rights reserved iii
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INTERNATIONAL STANDARD ISO 16895-1:2008(E)
Wood-based panels — Dry-process fibreboard —
Part 1:
Classifications
1 Scope
This part of ISO 16895 specifies a classification matrix, related mandatory tests and thickness ranges for
ultra-low-, low-, medium-, and high-density dry process fibreboard.
[1]
NOTE 1 Requirements for mandatory test properties are specified in ISO 16895-2 .
NOTE 2 Fibreboards are broadly divided into two groups based on the manufacturing process, namely the dry process
group and the wet process group (see Clause 3). Wet process fibreboards lie outside the scope of this part of ISO 16895.
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.
ISO 3340, Fibre building boards — Determination of sand content
ISO 9426, Wood-based panels — Determination of dimensions of panels
ISO 9427, Wood-based panels — Determination of density
ISO 12460-1, Wood-based panels — Determination of formaldehyde release — Part 1: Formaldehyde
emission by the 1-cubic-metre chamber method
ISO 16572, Timber structures — Wood-based panels — Test methods for structural properties
ISO 16978, Wood-based panels — Determination of modulus of elasticity in bending and of bending strength
ISO 16979, Wood-based panels — Determination of moisture content
ISO 16981, Wood-based panels — Determination of surface soundness
ISO 16983, Wood-based panels — Determination of swelling in thickness after immersion in water
ISO 16984, Wood-based panels — Determination of tensile strength perpendicular to the plane of the panel
ISO 16985, Wood-based panels — Determination of dimensional changes associated with changes in relative
humidity
ISO 16987, Wood-based panels — Determination of moisture resistance under cyclic test conditions
ISO 16998, Wood-based panels — Determination of moisture resistance — Boil test
ISO 17064, Wood-based panels — Fibreboard, particleboard and oriented strand board (OSB) — Vocabulary
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ISO 16895-1:2008(E)
ISO 20585, Wood-based panels — Determination of wet bending strength after immersion in water at 70 °C or
100 °C (boiling temperature)
ISO 27528, Wood-based panels — Determination of resistance to axial withdrawal of screws
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17064 and the following apply.
3.1
dry process fibreboard
fibreboard with a forming line moisture content, as a mass fraction, of less than or equal to 20 % and whose
primary bonding results from applied adhesives or resins
3.2
wet process fibreboard
fibreboard with a forming line moisture content, as a mass fraction, of greater than 20 % and whose primary
bonding results from felting of fibres and their inherent adhesive properties
4 Symbols and abbreviated terms
D dry conditions
DIY do-it-yourself
E exterior conditions
EXT exterior
F fungi retardant
FN furniture
FR fire retardant
GP general purpose
H humid conditions
HDF high-density fibreboard
HMR highly moisture resistant
I insect retardant
LB load bearing
LDF low-density fibreboard
M high humid conditions
MDF medium-density fibreboard
MR moisture resistant
REG regular
UDF ultra-low-density fibreboard
thickness
δ
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ISO 16895-1:2008(E)
5 Classification, designation and coding
5.1 General
5.1.1 Classification matrices
Overall classification matrices, which include all major classes available at the time of publication, are shown
in Tables 1 to 4. Tables 1 to 4 allow for future classes to be included as they become available on
international markets.
Not all products in the matrices shown in Tables 1 to 4 are currently available or under development. Realistic
property tables can only be developed for existing products. The remainder are potential future products and
property tables will be developed when necessary.
Density ranges given in product descriptions in 5.2 to 5.5 are a guide. Manufacturers may classify a product
as a particular type if the product is within 10 % of the nominated density range and if it meets all the property
3
requirements of the nominated type. For example, a thin fibreboard of density 830 kg/m could be called MDF
if it meets all property requirements of the particular MDF grade nominated.
5.1.2 Uses
The following abbreviations and terms have been used in the preparation of the dry process fibreboard
classification matrices.
regular REG dry conditions only
moisture resistant MR humid conditions
highly moisture resistant HMR high humid conditions
exterior EXT above ground
load bearing LB structural or load bearing
general purpose GP applications not requiring the
...
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