SIST EN ISO 177:2000
(Main)Plastics - Determination of migration of plasticizers (ISO 177:1988)
Plastics - Determination of migration of plasticizers (ISO 177:1988)
Specification of a method for the determination of the tendency of plasticisers to migrate from plastics into other materials or other plastics, when they are brought into close contact. A test specimen cut from a sheet or plate of the material to be tested is placed in close contact with two sheets capable of absorbing plasticisers. It is then subjected to heating under defined conditions. The loss in mass of the test specimen is a measure of the plasticiser migration.
Kunststoffe - Bestimmung der Migration von Weichmachern (ISO 177:1988)
Diese Internationale Norm legt ein Verfahren zur Bestimmung der Migrationsneigung von Weichmachern aus Kunststoffen, in denen sie enthalten sind, in andere Materialien oder andere Kunstoffe, mit denen sie in engen Kontakt gebracht werden, fest. Anmerkung 1: Die Oberflächen, in die die Wanderung erfolgen kann, dürfen auch aus organischen Oberflächenbeschichtungen wie Lacken bestehen.
Plastiques - Détermination de la migration des plastifiants (ISO 177:1988)
La présente Norme internationale prescrit une méthode pour la détermination de la tendance des plastifiants à migrer des plastiques dans lesquels ils ont été incorporés vers d'autres rhatières, plastiques ou autres, placées en contact étroit.
NOTE 1 - Les surfaces dans lesquelles les migrations peuvent avoir lieu peuvent également être des surfaces revêtues d'un produit organique, tel qu'une couche de vernis. Cet essai convient a) pour l'évaluation de la tendance que présentent les plastiques plastifiés, en particulier en films et en feuilles, de perdre certains de leur composants liquides, lorsqu'ils sont mis en contact avec des matières présentant une affinité pour les plastifiants; b) pour l'étude de la tendance à la migration des plastifiants contenus dans une résine ou une série de résines, à une ou plusieurs concentrations. Dans le cas b), des compositions types doivent être préparées sur la base d'une résine bien déterminée et dans les proportions bien définies de plastifiant par rapport à la résine.
NOTE 2 - Lorsque les feuilles absorbantes contiennent elles-mêmes une matière pouvant migrer, il peut arriver que, simultanément, il y ait une migration des éprouvettes vers les feuilles absorbantes et une migration inverse. Le résultat peut aussi être affecté par la migration d'autres constituants (par exemple oligomères) ou par le départ de constituants volatils autres que les constituants du plastique ou de la couche absorbante.
Polimerni materiali - Določevanje migracije mehčal (ISO 177:1988)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 177:2000
01-maj-2000
3ROLPHUQLPDWHULDOL'RORþHYDQMHPLJUDFLMHPHKþDO ,62
Plastics - Determination of migration of plasticizers (ISO 177:1988)
Kunststoffe - Bestimmung der Migration von Weichmachern (ISO 177:1988)
Plastiques - Détermination de la migration des plastifiants (ISO 177:1988)
Ta slovenski standard je istoveten z: EN ISO 177:1999
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 177:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 177:2000
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SIST EN ISO 177:2000
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SIST EN ISO 177:2000
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SIST EN ISO 177:2000
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SIST EN ISO 177:2000
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SIST EN ISO 177:2000
IS0
INTERNATIONAL STANDARD
177
Second edition
1988-06-H
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXfiYHAPOAHAFI OPrAHM3A~Mfl IlO CTAH,QAPTM3A~MM
Determination of migration of plasticizers
Plastics -
Plastiques - D&ermination de la migration des plastifian ts
Reference number
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SIST EN ISO 177:2000
IS0 177 : 1988 (El
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of electrotechnical standardization.
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. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
International Standard IS0 177 was prepared by Technical Committee ISO/TC 61,
Plastics.
This second edition cancels and replaces the first edition (IS0 177 : 19761, of which it
constitutes a technical revision.
0 International Organization for Standardization, 1988 l
Printed in Switzerland
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SIST EN ISO 177:2000
INTERNATIONAL STANDARD IS0 177: 1988 (E)
- Determination of migration of plasticizers
Plastics
IS0 293 : 1986, Plastics - Compression moulding test
1 Scope
specimens of thermoplastic materials.
This International Standard specifies a method for the deter-
IS0 294 : 1975, Plastics - Injection moulding test specimens
mination of the tendency of plasticizers to migrate from plastics
of thermoplastic materials.
in which they are contained into other materials or other
plastics when they are brought into close contact.
IS0 4649 : 1985, Rubber - Determination of abrasion
resistance using a rotating cylindrical drum device.
NOTE 1 - The surfaces into which the migration may proceed may
also consist of organic surface coatings, such as lacquers.
3 Definition
This test is suitable
For the purposes of this International Standard, the following
a) for evaluating the tendency displayed by plastics,
definition applies.
particularly in the form of films and sheets, to lose certain of
their liquid constituents when they are brought into contact
migration of plasticizers: The loss of mass of a sheet of
with materials that have an affinity for plasticizers;
plasticized plastic when placed in close contact between two
absorbent sheets of another material, under specified con-
b) for studying the tendency to migrate of plasticizers con-
ditions.
tained in a resin or a series of resins, in one or more concen-
trations.
4 Principle
In case b), standard compounds should be prepared on the
A test specimen cut from a sheet or plate of the material or
basis of a well characterized resin with well defined ratios of
from the finished product to be tested is placed in close contact
plasticizer to resin.
with two sheets, capable of absorbing plasticizers. It is then
subjected to heating under defined conditions. The loss in mass
NOTE 2 - When the absorbent sheets themselves contain a substance
of the test specimen, theoretically equal to the increase in mass
capable of migrating, simultaneous migrations may occur from the test
specimens into the absorbent sheets and vice versa. of the sheets, is a measure of the migration of the plasticizer.
The results may also be affected by the migration of other constituents
of the plastic material (for example oligomers) or by the loss of any
5 Apparatus
volatile constituents other than plasticizers from the plastic material or
the absorbent layer.
5.1 Analytical balance, accurate to 0,001 g.
5.2 Micrometer, accurate to 0,Ol mm.
2 Normative references
5.3 Air circulating oven, capable of maintaining the
The following standards contain provisions which, through
temperature to within + 2 OC, in the range 50 to 100 OC.
reference in this text, constitute provisions of this International
Standard. At the time of publication, the editions indicated
5.4 Glass plates, with plane surfaces, of sufficient size to
were valid. All standards are subject to revision, and parties to
cover the absorbent backing discs (5.6).
agreements based on this International Standard are encouraged
to investigate the possibility of applying the most recent
5.5 Weights, of 5 kg.
editions of the standards listed below. Members of IEC and IS0
maintain registers of currently valid International Standards.
5.6 Absorbent backing discs, with an affinity for
IS0 291 : 1977, Plastics - Standard atmospheres for con- plasticizers, 60 mm * 1 mm in diameter and at least 0,5 mm in
ditioning and testing. thickness.
1
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