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ISO DIS 19065-1 2013 Edition, July 11, 2013 PLASTICS - ACRYLONITRILE-STYRENE-ACRYLATE (ASA), ACRYLONITRILE- (ETHYLENE-PROPYLENE-DIENE)-STYRENE (AEPDS) AND ACRYLONITRILE- (CHLORINATED POLYETHYLENE)-STYRENE (ACS) MOULDING AND EXTRUSION MATERIALS - PART 1: DESIGNATION SYSTEM AND BASIS FOR SPECIFICATION
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Description / Abstract:
This part of ISO 19065 establishes a system of designation for
acrylonitrile-styrene-acrylate (ASA),
acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and
acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and
extrusion materials, which may be used as the basis for
specifications.
The types of ASA, AEPDS and ACS plastic are differentiated from
each other by a classification system based on appropriate levels
of the designatory properties
a) Vicat softening temperature
b) melt volume-flow rate
c) Charpy notched impact strength
d) tensile modulus
and on information about composition, intended application
and/or method of processing, important properties, additives,
colorants, fillers and reinforcing materials.
This part of ISO 19065 is applicable to all ASA, AEPDS and ACS
materials consisting of a continuous phase based mainly on
styrene-acrylonitrile (SAN) copolymer (in which the styrene
component may be styrene itself and/or alkyl-substituted styrene)
and a dispersed elastomeric phase based mainly on
acrylate (ASA materials),
ethylene-propylene-diene (EPDM) (AEPDS materials),
chlorinated polyethylene (ACS materials),
with or without other components, in such quantities as
specified in data block 1.
It applies to ASA, AEPDS and ACS materials ready for normal use
in the form of powder, granules, pellets or chips, unmodified or
modified by colorants, additives, fillers, etc.
This part of ISO 19065 does not apply to materials
a) containing less than 10 % by mass of acrylonitrile in the
continuous phase;
b) with a Charpy notched impact strength of less than 3
kilojoules per square metre;
c) containing less than 50 % by mass of acrylate in the
elastomeric phase in the case of ASA;
d) containing less than 50 % by mass of ethylene-propylene-diene
in the elastomeric phase in the case of AEPDS;
e) containing less than 50 % by mass of chlorinated polyethylene
in the elastomeric phase in the case of ACS.
It is not intended to imply that materials having the same
designation give necessarily the same performance. This part of ISO
19065 does not provide engineering data, performance data or data
on processing conditions which may be required to specify a
material for a particular application and/or method of
processing.
If such additional properties are required, they shall be
determined in accordance with the test methods specified in part 2
of this International Standard (ISO 6402-2), if suitable.
In order to specify a thermoplastic material for particular
application or to ensure reproducible processing, additional
requirements may be given in data block 5.