Plastics -- Aminoplastic moulding materials -- Specification

Plastiques -- Matières à mouler aminoplastes -- Spécification

General Information

Status
Replaced
Publication Date
30-Jun-1977
Withdrawal Date
30-Jun-1977
Current Stage
6060 - International Standard published
Completion Date
01-Jul-1977
Ref Project

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ISO 2112:1977 - Plastics -- Aminoplastic moulding materials -- Specification
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INTERNATIONAL STANDARD 211 2

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEXIIYHAPOIIHAI OPïAHH3AUHR II0 CTAHMPTH3AUKM -ORGANISATION INTERNATIONALE DE NORMALISATION

Plastics - Aminoplastic moulding materials - Specification
Plastiques - Matières à mouler aminoplastes - Spécification
First edition - 1977-07-15
- W U DC 678.652.002.61 Ref. No. IS0 2112-1977 (E)

Dacfmrr : plastics, amino resins, moulding materials, specifications, tests, physical properties, classification.

Price based on 4 pages
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FOR E WOR D

IS0 (the International Organization for Standardization) is a worldwide federation

of national standards institutes (IS0 member bodies). The work of developing
International Standards is carried out through IS0 technical committees. Every
member body interested in a subject for which a technical committee has been set

up has the right to be represented on that committee. International organizations,

governmental and non-governmental, in liaison with ISO, also take part in the work.

Draft International Standards adopted by the technical committees are circulated
to the member bodies for approval before their acceptance as international
Standards by the IS0 Council.
International Standard IS0 21 12 was developed by Technical Committee
lSO/lC 61, P/astics, and was circulated to the member bodies in February 1975.
It has been approved by the member bodies of the following countries :
Austria Israel Spain
Belgium Japan Sweden
Canada Netherlands Switzerland
Czechoslovakia New Zealand Turkey
France Poland United Kingdom
Hungary Romania U.S.A.
India South Africa, Rep. of Yugoslavia
The member bodies of the following countries expressed disapproval of the
document on technical grounds :
Germany
Italy
O International Organization for Standardization, 1977 0
Printed in Switzerland
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IS0 2112-1977 (E)
INTERNATIONAL STANDARD
Plastics - Aminoplastic moulding materials - Specification

1 SCOPE AND FIELD OF APPLICATION will be suitable for all applications within the wide

descriptions given.
1.1 This International Standard establishes a specification
applicable to four types of aminoplastic moulding materials
classified according to use, as follows :
2 REFERENCES
Type UF A - General purpose
Example : Urea-formaldehyde resin with cellulose filler.
ISOIR 62, Plastics - Determination of water absorption. 1 )
Type MF B - Hot-water resistant
IS0 75. Plasticsand ebonite - Determination of temperature
Example : Melamine-formaldehyde resin with cellulose
of deflection under load.
filler.
ISO/R 117, Plastics - Determination of boiling water
Type MF C - Thermal resistant and electrical
absorption. 1 )
Example : Melamine-formaldehyde resin with inorganic
ISO/R 171, Plastics - Determination of bulk factor of
filler.
moulding materials.
Type MF D - Impact resistant
IS0 178, Plastics - Determination of flexural properties of
Example : Melamine-formaldehyde resin with chopped
rigid plastics.
cottoncloth filler.
ISOIR 179, Plastics - Determination of the Charpy impact
resistance of rigid plastics (Charp y impact flexural test).
1.2 These types have been further subdivided into grades
based on property levels and requirements, as follows :
ISOIR 180, Plastics - Determination of the lzod impact
resistance of rigid plastics (Izod impact flexural tests).
Grade UF A10 - Substantially alpha-cellulose-filled
L Grade UF All materials
IS0 181, Plastics - Determination of the behaviour of rigid
plastics in contact with an incandescent bar. 2,
Grade UF A20 - Substantially woodflour-filled
material
IS0 291, Plastics - Standard atmospheres for conditioning
and testing. 3)
Grade MF B10 - Substantially alpha-cellulose-filled
material
IS0 295, Plastics - Compression moulding test specimens
of thermosetting materials.
Grade MF BI1 - Substantially alpha-cellulose-filled
material for foodstuff contact appli-
IS0 2577, Plastics - Thermosetting moulding materials -
cations
Determination of shrinkage of compression moulded test
specimens in the form of bars.
Grade MF B20 - Substantially woodflour-filled
material
IS0 281 8. Plastics - Preparation of test specimens by
machining.
It should be noted that grade MF B11 is the only grade
intended for foodstuff contact applications.
IS0 367 1, Plastics - Aminoplastic moulding materials -
De termina tion of volatile matter.
1.3 It must not be inferred from the above that materials
IS0 46 14, Plastics - Melamine-formaldehyde mouldings -
of any particular type are necessarily unsuitable for applica-
Determination of extractable formaideh yde.
tions other than those indicated, or that specific materials

1) These two documents are under revision and will be replaced by IS0 62, Plastics - Determination of effects of immersion in water,

including water absorption.
2) At present at the stage of draft.
3) At present at the stage of draft. (Revision of ISO/R 291 .)
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IS0 2112-1977 (E)
3.2 amino resin : A synthetic resin derived from the
IEC Publication 112, Recommended method for determin-
reaction of urea, thiourea, melamine or allied compounds
ing the comparative tracking index of solid insulating
with aldehydes, usually formaldehyde.
materials under moist conditions.
IEC Publication 167, Recommended methods of test for
determination of the insulation resistance of solid insulating
4 GENERAL REQUIREMENTS
materials.
Aminoplastic moulding materials complying with this
IEC Publication 243, Recommended methods of test for
specification shall meet the appropriate property require-
electric strength of solid insulating materials at power
ments shown in the table.
frequencies.
I EC Publication 250 and its Addendum, Recommended
5 TEST SPECIMENS
method for testing the permittivity and dielectric dissi-

pation factor of electrical insulating materials at power, Bulk factor, flow and volatile mat

...

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