EN ISO 1874-1:2000

Plastics - Polyamide (PA) moulding and extrusion materials - Part 1: Designation (ISO 1874-1:1992)

Establishes a data block designation system which may be used as the basis for specifications. Tabulates the codes used in the data blocks. Gives examples of designations.

Kunststoffe - Polyamid (PA)-Formmassen - Teil 1: Bezeichnung (ISO 1874-1:1992)

In diesem Teil von ISO 1874 wird ein Bezeichnungssystem für thermoplastische PA-Formmassen festgelegt, das als Grundlage für Spezifikationen dienen kann. Es umfaßt Polyamid Homopolymer-Formmassen auf Basis von PA 6, PA 66, PA 99, PA 610, PA 612, PA 11, PA 12, PA MXD6, PA 46, PA 1212 und Copolymer-Formmassen unterschiedlicher Zusammensetzung.

Plastiques - Matériaux polyamides (PA) pour moulage et extrusion - Partie 1: Désignation (ISO 1874-1:1992)

La présente partie de l'ISO 1874 établit un système de désignation pour les matériaux thermoplastiques polyamides (PA). Ce système peut être utilisé comme base pour les spécifications.  Elle couvre les homopolyamides pour moulage et extrusion basés sur le PA 6, PA 66, PA 69, PA 610, PA 612, PA 11, PA 12, PA MXD6, PA 46, PA 1212, et les copolyamides de compositions diverses pour moulage et extrusion.  Ce système de désignation s'applique à tous les homopolymères et copolymères polyamides. Il s'applique aux matériaux prêts à l'emploi, non modifiés et modifiés par des colorants, des additifs, des charges, des matériaux de renforcement, des modifiants de polymères, etc.  La présente partie de l'ISO 1874 ne s'applique pas aux polyamides de coulée du type PA 6 et PA 12.  Cela ne signifie pas que des matériaux ayant la même désignation présentent nécessairement la même performance. La présente partie de l'ISO 1874 ne comprend pas les données d'ingénierie, les données de performance ou les données sur les conditions de mise en oeuvre pouvant être nécessaires pour spécifier un matériau destiné à une application ou une méthode de mise en ceuvre particulière.  Si de telles propriétés supplémentaires sont nécessaires, elles doivent être déterminées conformément aux méthodes d'essai prescrites dans l'ISO 1874-2, si celles-ci conviennent.  Dans le but de spécifier un matériau thermoplastique pour une application particulière ou une méthode de traitement reproductible, des prescriptions supplémentaires peuvent être codées dans le bloc de données 5 (voir article 3).

Polimerni materiali - Poliamidni (PA) materiali za oblikovanje in ekstrudiranje - 1. del: Označevanje (ISO 1874-1:1992)

General Information

• Status: Withdrawn
• Publication Date: 19-Sep-2000
• Withdrawal Date: 30-Mar-2001
• ICS: 83.080 - Plastics
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249 - Plastics
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 15-Nov-2010
• Completion Date: 15-Nov-2010
• Ref Project: SIST EN ISO 1874-1:2001 - Plastics - Polyamide (PA) moulding and extrusion materials - Part 1: Designation (ISO 1874-1:1992)

Relations

• Replaced By: EN ISO 1874-1:2010 - Plastics - Polyamide (PA) moulding and extrusion materials - Part 1: Designation system and basis for specification (ISO 1874-1:2010)
• Effective Date: 20-Nov-2010

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2001
3ROLPHUQLPDWHULDOL3ROLDPLGQL3$PDWHULDOL]DREOLNRYDQMHLQHNVWUXGLUDQMH
GHO2]QDþHYDQMH,62
Plastics - Polyamide (PA) moulding and extrusion materials - Part 1: Designation (ISO
1874-1:1992)
Kunststoffe - Polyamid (PA)-Formmassen - Teil 1: Bezeichnung (ISO 1874-1:1992)
Plastiques - Matériaux polyamides (PA) pour moulage et extrusion - Partie 1:
Désignation (ISO 1874-1:1992)
Ta slovenski standard je istoveten z: EN ISO 1874-1:2000
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL
STANDARD
Second edi tion
1992-03-0 1
Corrected and reprinted
1992-12-01
- Polyamide (PA) moulding and
Plastics
extrusion materials -
Part 1:
Designation
Plastiques - Mat&-iaux polyamides (PA) pur moulage et extrusion -
Partie 1: Dhignation
_--_~
---
--
Reference number
-~
~_~~ ISO 1874-1:1992(E)
_----_ _.--I_-_~
ISO 1874~1:1992(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
technical committees. Esch 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. ISO 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 voting. Publication as an Inter-
national Standard requires approval by at least 75 % of the member
bodies casting a vote.
International Standard ISO 1874-1 was prepared by Technical Committee
ISO/TC 61, Plastics, Sub-Committee SC 9, Thermoplastic materials.
This second edition cancels and replaces the first edition
(ISO 1874~1:1985), the scope of which has been extended to include not
only homopolymers but also copolymers.
ISO 1874 consists of the following Parts, under the general title
Plastics - Polyamide (PA) moulding and extrusion materr’als:
- Part 1: Designation
- Part 2: Preparation of fest specimens and determina tion of prop-
erties
Annex A forms an integral part of this patt of ISO 1874.
0 ISO 1992
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronie or mechanical, including photocopying and microfilm, without
Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-121 1 Geneve 20 l Switzerland
Printed in Switzerland
ii
INTERNATIONAL STANDARD ISO 1874-1 :1992(E)
Plastics - Polyamide (PA) moulding and extrusion
materials -
Part 1:
Designation
1 Scope
1.1 This part of ISO 1874 establishes a System of designation for Polyamide (PA) thermoplastic materials,
which may be used as the basis for specifications.
lt covers Polyamide homopolymers for moulding and extrusion based on PA 6, PA 66, PA 69, PA 610, PA 612,
PA 11, PA 12, PA MXDG, PA 46, PA 1212 and copolyamides of various compositions for moulding and extrusion.
1.2 The types of Polyamide plastic are differentiated from each other by a classification System based on
appropriate levels of the designatory properties
a) viscosity number,
b) tensile modulus of elasticity and
c) presence of nucleating agent,
and on information about chemical structure, intended application, method of processing, important properties,
additives, colour, fillers and reinforcing materials.
1.3 The designation System is applicable to all Polyamide homopolymers and copolymers. Its applies to ma-
terials ready for normal use, unmodified and modified by colorants, additives, fillers, reinforcing materials,
polymer modifiers, etc.
This patt of ISO 1874 does not apply to monomer casting-type polyamides of PA 6 and PA 12.
1.4 It is not intended to imply that materials having the Same designation give necessarily the Same per-
formante. This part of ISO 1874 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 patt 2 of ISO 1874, if suitable.
1.5 In Order to specify a thermoplastic material for a particular application or reproducible processing, ad-
ditional requirements may be given in Data Block 5 (see clause 3).

ISO 1874=1:1992(E)
2 Normative references
The following Standards contain provisions which, through reference in this text, constitute provisions of this
part of ISO 1874. At the time of publication, the editions indicated were valid. All Standards are subject to re-
Vision, and Parties to agreements based on this part of ISO 1874 are encouraged to investigate the possibility
of applying the most recent editions of the Standards indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards.
- Determination of viscosity number.
ISO 307:1984, Plastics - Polyamides
ISO/R 527: 1966, Plastics - Determination of tensile properties.
ISO 1043~1:1987, Plastics - Symbols - Part 1: Basic polymers and their special characteristics.
Part 2: Fillers and reinforcing materiak.
ISO 1043-2:1988, Plastics - Symbols -
- Polyamide (PA) moulding and extrusion materiak - Part 2: Preparation of fest
ISO 1874-2: 1987, Plastics
specimens and determination of properties.
ISO 345%4:1986, Plastics - Determination of ash - Part 4: Polyamides.
3 Designation System
The designation System for thermoplastics is based on the standardized Pattern given in figure 1.
The designation consists of an optional Description Block, reading “Thermoplastics”, and an Identity Block
comprising the International Standard number and an Individual Item Block. For unambiguous designation, the
Individual Item Block is subdivided into four data blocks comprising the following information:
Data Block 1: Identification of the plastic by its Symbol (PA), in accordance with ISO 1043-1, and infor-
mation about Chemical structure and composition (see 3.1).
Data Block 2: Position 1: Intended application or method of processing (see 3.2).
Positions 2 to 8: Important properties, additives and supplementary information (see 3.2).
Designatory properties (see 3.3).
Data Block 3:
Data Block 4: Fillers or reinforcing materials and their nominal content (see 3.4).
For the purpose of specifications, a fifth data block may be added containing additional information. The kind
of information and the code-Ietters used are not the subject of this part of ISO 1874.
The first Character of the Individual Item Block shall be a hyphen.
The four data blocks shall be separated from each other by a comma.
If a data block is not used, this shall be indicated by doubling the Separation sign, i.e. by two commas (,,).
3.1 Data Block 1
In this data block, after the hyphen, the Polyamide plastic is identified using the Symbols and designations Iisted
in tables 1 and 2.
Polyamides containing a plasticizer may be designated by adding the letter P after the Symbol, separated from
it by a hyphen (example: PA SIO-P).
Polyamides containing an impact modifier may be designated by adding the letters Hl after the Symbol, sep-
arated from it by a hyphen (example: PAG-Hl).

ISO 1874-1 :1992(E)
Designatlun
Identlty Block
Indlvldual Item Block
Descrlptlan Block
---
International
bpt lonal)
Data Data Data Data
Data
I
Standard Block
Block
Block Block Block Block
4 5 I
1 2 3
--- 1
Figure 1 - Data block designation System
Table 1 - Symbols indicating the Chemical structure of Polyamide materials in Data Block 1
Symbol Name and Chemical structure
PA 6 Polyamide 6; homopolymer based on &=caprolactam
PA 66 Polyamide 66; homopolycondensate based on hexamethylenediamine and adipic acid
PA 69 Polyamide 69; homopolycondensate based on hexamethylenediamine and azelaic acid
PA 610 Polyamide 610; homopolycondensate based on hexamethylenediamine and sebacic acid
Polyamide 612; homopolycondensate based on hexamethylenediamine and and dodecanedioic
PA 612
acid’)
PA 11 Polyamide 11; homopolymer based on 11 -aminoundecanoic acid
PA 12 Polyamide 12; homopolymer based on cu-aminododecanoic acid or on laurolactam
PA MXD6 Polyamide MXDG; homopolycondensate based on m-xylylenediamine and adipic acid
PA 46 Polyamide 46; homopolymer based on tetramethylenediamine and adipic acid
PA 1212 Polyamide 1212; homopolymer based on dodecanediamine and dodecanedioic acidl)
1) 1 ,lO-Decanedicarboxylic acid.
Table 2 - Symbols indicating the Chemical structure of copolyamide materials in Data Block 1 (examples)
Symbol
Chemical structure
PA 66J610 Polyamide copolymers based on hexamethylenediamine, adipic acid and sebacic acid
PA 6J12 Polyamide copolymers based on E-caprolactam and laurolactam
PA 6TJ61 Polyamide copolymers based on hexamethylenediamine, terephthalic acid and isophthalic acid
Polyamide ternary copolymers of &-caprolactam, hexamethylenediamine, adipic acid,
PA 6J66JPACM 6
bis@-aminocyclohexyl)methane and adipic acid
PA 12JlPDI Polyamide copolymers of laurolactam, isophorone diamine and isophthalic acid
The following two designations include an indication of the mass content ratio:
Polyamide copolymers based on 90 O/o (m/m) hexamethylenediamine and adipic acid and
PA 66J6 (9OJlO)
IO O/o (m/m) &-caprolactam
Polyamide copolymers based on 20 O/o (m/~z) hexamethylenediamine and adipic acid and
PA 66J6 (20180)
80 ?/o (m/m) E-caprolactam
ISO 1874-1 :1992(E)
3.2 Data Block 2
In this data block, information about intended application or method of processing is given in Position 1 and
information about important properties, additives and colour in positions 2 to 8. The code-letters are specified
in table 3.
If information is presented in positions 2 to 8 and no specific information is given in Position 1, the letter X shall
be inserted in Position 1.
Table 3 - Codes used in Data Block 2
Code-
Positions 2 to 8
Position 1
letter
Processing stabilized
A
Antiblocking
B Blow moulding
Coloured, transparent
Cl
Coloured, non-transparent
c2
D Powder; dry blend
E Extrusion of pipes, profiles and sheets Expandable
Extrusion of film and thin sheeting Special burning characteristics
F
G General use Pelle& granules
H Coating Heat-ageing stabilized
K Cable and wire coating
Light and/or weather stabilized
L Monofilament extrusion
M Injection mouiding
Natura1 (not coloured)
N
Moulding release agent
R Rotational moulding
Lubricated
s Powder coating or sintering
Improved transparency
T Tape manufacture
Stabilized against hydrolysis
W
X No indication
Antistatic
3.3 Data Block 3
In this data block, the viscosity number is represented by a two-figure code-number (see 3.3.1) and the tensile
modulus of elasticity by a three-figure code-number (see 3.3.2). The two Codes are separated from each other
by a hyphen.
Nucleated polyamides may be designated by the letter N in the very last Position of Data Block 3.
If a property value falls on or near a range Iimit, the manufacturer shall state which range will designate the
material. If subsequent individual test values lie on, or either side of, the range Iimit because of manufacturing
tolerantes, the designation is not affected.
NOTE 1 Not all combinations of the values of the designatory properties are provided by currently available materials.
3.3.1 Viscosity number
The viscosity number shall be determined in accordance with ISO 307, using the solvent specified in table4.
The average value of the viscosity number is represented by a two-figure code-number as specified in table 4.
For copolyamides, 96 % (m/m) sulfuric acid should preferably be used as solvent, but some copolyamides
dissolve better in m-cresol. Information concerning the most suitable solvent tan be obtained from the supplier
of copolyamides and homopolyamides which are not covered by the last column of table4.

ISO 1874=1:1992(E)
- Code-numbers used for viscosity number in Data Block 3
Table 4
Range of viscosity number
ml/g
Applicable to
Codeunumber
Solvent: 96 % (m/nz) sulfuric
Solvent: m-cresol
acid
< 90 PA 6
PA 66
10 >90 to 110
PA 69
12 > 110 to 130
PA 610
14 > 130 to 160
> 160 to 200 PA 612
> 200 to 240 PA MXD6
27 > 240 to 290 Copolyamides
> 290 to 340
> 340
all0 PA 1212
130 PA 11
12 > 110 to
> 130 to 150 PA 12
> 150 to 170 Copoiyamides
> 170 to 200
> 200 to 240
24 > 240
NOTE 2 Viscosity numbers determined with 90 O/o (rn/rn) formic acid as solvent tan be converted into viscosity numbers
determined in 96 % (m/m) sulfuric acid using the following equations:
For PA 6
= 0,416 1 + 0,927 6 In x
InY
For PA 66
in y = 0,454 1 + 0,926 1 In x
For PA 69
In y = 0,463 4 + 0,909 5 in sc
For PA 610
in y = 0,982 3 + 0,793 2 in x
where
sc
is the viscosity number in 90 O/o (m/rrz) formic acid;
is the viscosity number in 96 % (rn/~) suifuric acid.
Y
For the viscosity number of PA 612, which may be determined in accordance with ISO 307 in either m-cresoi or
96 % (m/m) suifuric acid, the foiiowing conversion formuia applies:
in y = 0,285 7 + 0,985 9 in x
where
sc is the viscosity number in 96 O/o (mjm) suifuric acid;
is the viscosity number in m-cresol.
Y
The above conversion formulae have been calculated from the results of an interlaboratory investigation carried out in
1982 (See ISO 307:1984, clause 13). The accuracy of the conversions depends on bot
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