ISO 1622:1975

Plastics — Polystyrene moulding and extrusion materials — Designation

Matières plastiques — Polystyrènes pour moulage et extrusion — Désignation

General Information

• Status: Withdrawn
• Publication Date: 31-May-1975
• Withdrawal Date: 31-May-1975
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: ISO/TC 61/SC 9 - Thermoplastic materials
• Drafting Committee: ISO/TC 61/SC 9/WG 7 - Styrene polymers
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 01-Jan-1986

Relations

• Revised: ISO 1622-1:1985 - Plastics — Polystyrene (PS) moulding and extrusion materials — Part 1: Designation
• Effective Date: 15-Apr-2008

Standards Content (Sample)

,*Z!
INTERNATIONAL STANDARD @ ‘!E& 1622 8
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXnYHAPOnHAI OPTAHM3AUiIR II0 CTAHJlAPTiI3AUMM .ORGANISATION INTERNATIONALE DE NORMALISATION
&--
Plastics - Polystyrene moulding and extrusion materials -
Designation
Matières plastiques - Polystyrènes pour moulage et extrusion - Désignation
First edition - 1975-06-15
L-
A
Lu
c
UDC 678.746.22.001.3 Ref. No. IS0 1622-1975 (E)
L?
m
7
L-4 Descriptors : plastics, thermoplastic resins, polystyrene, moulding materials, casting, extrusions, designation.
N
50
O
E
Price based on 3 pages
/ _I--.

---------------------- Page: 1 ----------------------
FOREWORD
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.
Prior to 1972, the results of the work of the Technical Committees were published
as IS0 Recommendations; these documents are now in the process of being
transformed into International Standards. As part of this process, Technical
Committee ISO/TC 61 has reviewed IS0 Recommendation R 1622 and found it
technically suitable for transformation. International Standard IS0 1622 therefore
replaces IS0 Recommendation R 1622-1970 to which it is technically identical.
IS0 Recommendation R 1622 was approved by the Member Bodies of the
following countries :
South Africa, Rep. of
Austria Iran
Spain
Belgium Israel
Brazil Italy Sweden
Czech os1 ova k i a Japan Switzerland
Korea, Rep. of Turkey
Egypt, Arab Rep. of
France Netherlands United Kingdom
Germany Poland U.S.A.
Hungary Port uga I U.S.S.R.
India Romania
No Member Body expressed disapproval of the Recommendation.
The Member Body of the following country disapproved the transformation of
ISO/R 1622 into an International Standard :
Canada
O International Organization for Standardization, 1975
Printed in Switzerland

---------------------- Page: 2 ----------------------
IS0 1622-1975 (E)
INTERNATIONAL STANDARD
Plastics - Polystyrene moulding and extrusion materials -
Designation
1 SCOPE AND FIELD OF APPLICATION ISO/R 1183, Plastics - Methods for determining the
density and relative density (specific gravity) of plastics
This International Standard provides a method of
excluding cellular plastics.
designation and the general requirements for polystyrene
IS0 2557, Plastics - Amorphous thermoplastic moulding
moulding and extrusion materials.
materials - Preparation of test specimens with a defined
Major types of polystyrene moulding and extrusion
level of shrinkage. 1
materials are differentiated from one another by
appropriate levels of selected specific properties. IEC Publication 250, Recommended methods for the
Polystyrene itself is described by selected general
determination of the permittivity and dielectric dissipation
characteristics for reference purposes.
factor of electrical insulating materials at power, audio and
radio frequencies including metre wavelengths.
These types are amorphous homopolymers of styrene,
coloured or uncoloured. Excluded are styrene copolymers,
homopolymers of substituted styrenes, and those modified
3 DESIGNATION
with other polymers, such as elastomers. Specific tests for
Types of polystyrene materials are identified by two-digit
special purpose materials, such as light-stabilized or
numerical designations. The first digit refers to Vicat
anti-static grades, are not included. High pigment contents
softening temperature, specifically to whichever one of the
may affect properties.
four ranges in table 2 includes the average value for the
Other properties may be necessary to specifiy materials for
pertinent polystyrene. The second digit similarly refers to
particular purposes.
melt flow index. The mechanical properties such as impact
strength and flexural modulus, which are necessary to
designate other styrene-containing plastics, need not be
2 REFERENCES
considered here.
ISO/R 179, Plastics - Determination of the Charpy impact
Thus, for example, type "14" describes polystyrene within
resistance of rigid plastics (Charp y impact flexural test).
the lowest Vicat softening temperature range and .the
greatest melt flow index range. Type "41" describes
ISO/R 180, Plastics - Determination
...