Plastics - Polytetrafluoroethylene (PTFE) semi-finished products - Part 2: Preparation of specimens and determination of properties (ISO 13000-2:1997)

Kunststoffe - Polytetrafluorethylen (PTFE)-Halbzeuge - Teil 2: Herstellung von Probekörpern und Bestimmung von Eigenschaften (ISO 13000-2:1997)

Dieser Teil der Internationalen Norm legt die Herstellung von Probekörpern und die Prüfverfahren für Halbzeuge aus Polytetrafluorethylen (PTFE) fest. Einzelne Prüfverfahren dieser vorliegende Norm können gefährliche Materi- alien, Arbeitsverfahren und Ausrüstungen beinhalten. Die Norm erhebt jedoch keinen  Anspruch auf Vollstädigkeit hinsichtlich der in diesem Zusammenhang eventuell auftretenden Sicherheitsfragen. Der Anwender der Norm trägt die Verantwortung für geeignete Sicherheitmassnahmen und für angemessene Vorkeh- rungen zum Schutze der Gesundheit.

Plastiques - Semi-produits en polytétrafluoroéthylene (PTFE)- Partie 2: Préparation des éprouvettes et détermination despropriétés (ISO 13000-2:1997)

Polimerni materiali – Polizdelki iz politetrafloroetilena (PTFE) – 2. del: Priprava preskušancev in določevanje lastnosti (ISO 13000-2:1997)

General Information

Status
Withdrawn
Publication Date
30-Apr-1999
Withdrawal Date
31-Mar-2006
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
01-Apr-2006
Due Date
01-Apr-2006
Completion Date
01-Apr-2006

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SLOVENSKI STANDARD
SIST EN ISO 13000-2:1999
01-maj-1999

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Plastics - Polytetrafluoroethylene (PTFE) semi-finished products - Part 2: Preparation of

specimens and determination of properties (ISO 13000-2:1997)
Kunststoffe - Polytetrafluorethylen (PTFE)-Halbzeuge - Teil 2: Herstellung von
Probekörpern und Bestimmung von Eigenschaften (ISO 13000-2:1997)

Plastiques - Semi-produits en polytétrafluoroéthylene (PTFE)- Partie 2: Préparation des

éprouvettes et détermination despropriétés (ISO 13000-2:1997)
Ta slovenski standard je istoveten z: EN ISO 13000-2:1997
ICS:
83.140.01 Izdelki iz gume in polimernih Rubber and plastics products
materialov na splošno in general
SIST EN ISO 13000-2:1999 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13000-2:1999
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SIST EN ISO 13000-2:1999
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SIST EN ISO 13000-2:1999
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SIST EN ISO 13000-2:1999
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SIST EN ISO 13000-2:1999
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SIST EN ISO 13000-2:1999
INTERNATIONAL
13000-2
STANDARD
First edition
1997-12-15
Plastics - Polytetrafluoroethylene (PTFE)
semi-finished products -
Part 2:
Preparation of test specimens and
determination of properties
Plastiques - Semi-produits en polyt6trafluoro6thykne (PTFE) -
Partie 2: Prkparation des kprouvettes et dktermination des propri&s
Reference number
IS0 13000-2: 1997(E)
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SIST EN ISO 13000-2:1999
IS0 13000=2:1997(E)
CONTENTS

1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...............................

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1

2. Normative references

3. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....................

................................................................................................................................................

S-PUi!

.........................................................................................................

5. Preparation of test specimens

......................................................................................

6 . Testing of semi-finished PTFE products

. ..................................................................................................................................................

61 General

6.2 ..............................................................................................................................

Linear dimensions

. ...............................................................................................................................

63 Tensile properties

6.4 Density ...................................................................................................................................................

65 . Loss of mass at 300 OC ......................................................................................................................

6.6 Dimensional stability - General method ......................................................................................

67 . Dimensional stability - Special method for determination of dimensional and
.............................................................................. 8
geometric stabilities of thick-walled tube

6.8 Electrical properties ..........................................................................................................................

6.9 Hardness ................................................................................................................................................

6.10 Colour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*...................................................................................................

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.11 Radiographic examination

6.12 Resistance to environmental stress cracking (ESC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.13 Deformation under load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Annex A (informative) Other standards relating to testing semi-finished products of

PTFE . . ..*****.*..*.*...***************...***............................................................................................................

0 IS0 1997

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced

or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-1211 Geneve 20 l Switzerland
Internet central @I iso.ch
c=ch; a=400net; p=iso; o=isocs; s=central
x.400
Printed in Switzerland
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SIST EN ISO 13000-2:1999
@ IS0 IS0 13000=2:1997(E)
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, governmental 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 voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 13000-2 was prepared by Technical Committee
ISOTTC 61, Plastics, Subcommittee SC 9, Thermoplastic materials.
IS0 13000 consists of the following parts, under the general title Plastics -
Polytetrafluoroethylene (PTFE) semi-finished products:
Par? I: Requirements and designation
Par? 2: Preparation of test specimens and determination of properties
Annex A of this part of IS0 13000 is for information only.
. . .
III
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SIST EN ISO 13000-2:1999
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SIST EN ISO 13000-2:1999
INTERNATIONAL STANDARD o Iso IS0 13000-2: 1997(E)
Plastics - Polytetrafluoroethylene (PTFE) semi-finished
products
Part 2:
Preparation of test specimens and determination of properties
WRING - This part of IS0 13000 may involve hazardous materials,
operations, and equipment. It does not purport to address all of the safety
It is the responsibility of the user of this
problems associated with its use.
part of IS0 13000 to establish appropriate safety and health practices and
determine the applicability of regulatory limitations prior to use.
1. Scope

This part of IS0 13000 specifies the preparation of test specimens and gives the test

methods for the requirements of semi-finished products of polytetrafluoroethylene

(PTFE).
2. Normative references

The following standards contain provisions which, through reference in this text,

constitute provisions of this International Standard. At the time of publication, the

editions indicated were valid. All standards are subject to revision, and parties to

agreements based on this International Standard are encouraged to investigate the

possibility of applying the most recent editions of the standards indicated below.

Members of IEC and IS0 maintain registers of currently valid International
Standards.
IS0 472: 1988 Plastics - Vocabulary.

IS0 527-1: 1993 Plastics - Determination of tensile properties - Part I: General principles.

IS0 527-2: 1993 Plastics - Determination of tensile properties - Part 2: Test conditions for

moulding and extrusion plastics.

IS0 527-3: 1995 Plastics - Determination of tensile properties - Part 3: Test conditions for

films and sheets.
IS0 842: 1984 Raw materials for paints and varnishes - Sampling.
-Determination of indentation hardness by means of a
IS0 868:1985 Plastics and ebonite
durometer (Shore hardness).

IS0 1183:1987 Plastics - Methods for determining the density and relative density of

non-cellular plastics.
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SIST EN ISO 13000-2:1999
IS0 13000=2:1997(E)

IS0 1923: 1981 Cellular plastics and rubbers - Determination of linear dimensions.

Part I: Ball indentation method.
IS0 2039-l: 1993 Plastics - Determination of hardness -
IS0 361.1: 1978 Micrometer callipers for external measurement.
-Determination of resistance to environmental stress cracking (ESC)
IS0 4599: 1986 Plastics
-Bent strip method.
Determination of environmental stress cracking (ESC) - Ball or pin impression
IS0 4600: 1992
method.

IS0 13000-l: 1997 Plastics - Polytetrafluoroethylene (PTFE) semi-jinishedproducts. Part 1.

Requirements and designation.

IEC 243- 1: 1988 A4ethods of test for electric strength of solid insulating materials - Part 1.

Tests at power@equencies.
Method of test for dielectric strength of solid insulating materials - Part 2.
IEC 243-2: 1990
Additional requirements for tests using direct voltage.
Test methods for Deformation of Plastics Under Load (Withdrawn - see
ASTM D621-64 (1988)
subclause 6.13 for details of availability).

ASTM D 1389-90 Methods for dielectric proof-voltage testing of thin solid electrical insulating

materials.
ASTM E94-93 Guide for radiographic testing.
CIE Publication 15.2: 1986, Calorimetry.
3. Definitions

The terminology given in IS0 472 and in IS0 13000-l is applicable to this part of IS0

13000.
4. Sampling

Details of procedures for sampling semi-finished products depend to a large extent on

the physical shape of the particular material. Whenever feasible, the materials shall

be sampled in accordance with IS0 842. Adequate statistical sampling shall be
considered an acceptable alternative.
5. Preparation of test specimens

The specimen used for testing shall be taken directly from or be machined from the

semi-finished product without other treatment. Thus, conversion of a semi-finished

product into a test specimen by any moulding procedure is not permitted. Where

applicable, IS0 standards shall be followed for the preparation of test specimens.

some instances, special procedures are required that are described either in the
general discussion or in the method.
Testing of semi-finished PTFE products
6.1 General
Properties required for specification shall be determined according to the

International Standards as referenced in this part of IS0 13000 or the procedures in

this part of IS0 13000. For the determination of density, tensile properties, hardness,

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SIST EN ISO 13000-2:1999
IS0 13000=2:1997(E)

and electrical properties, condition the test specimens at 23 * 2 “C for a period of at

least 4 hours prior to test. The other tests require no conditioning.
Informative annex A provides a list of other standards relating to testing semi-
finished products of PTFE.
6.2 Linear dimensions
These shall be determined by the procedures provided in IS0 1923 for cellular
plastics.
6.3 Tensile properties
6.3.1 Tensile specimens
6.3.1.1 General

The appropriate type of test specimen shall be chosen from those given in 6.3.1.2

through 6.3.1.5. At least three test specimens shall be prepared from the sample and

three specimens shall be tested.
NOTE&--Test specimens prepared from the moulded basic shapes, rod, or tube
and conforming to 6.3.1.2 are likely to give similar results to test specimens
prepared from the same product but conforming to 6.3.1.3.

When testing extruded products, the test specimens shall be cut parallel to the axis of

extrusion so that, as far as possible, each test specimen represents a different section

along the axis and a different area of the cross section.

When testing skived tape, skived sheet, or skived film, the test specimens shall be cut

perpendicular to the direction in which the pressure was applied when moulding the

billet from which the product was skived. If this direction is not known, two sets of

test specimens shall be prepared and tested, the test specimens in one set being cut at

90° to those in the other set and the mean results shall be calculated from the higher

set of values (indicating, typically, the direction perpendicular to the axis of applied

pressure). This procedure ensures a uniform way to report results from the testing.

The micro tensile test specimen is used most commonly for PTFE products.
6.3.1.2 Turned dumb-bell test specimens

The test specimens shall be turned so that their dimensions are in the ratios given in

figure 1, with the shape shown in Figure 1. The value of the larger diameter (D) shall

be 7 t 0,5 mm, 10 t 0,5 mm, or 20 t 0,5 mm.
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SIST EN ISO 13000-2:1999
IS0 13000=2:1997(E)
Table of ratios for turned dumb-bell specimens
d = 0,45 D to 0,55 D
L=5Dto6D
I= 3 D to 3,5 D
R = 0,2 D to 0,3 D
Figure 1 - Turned dumb-bell specimen for tensile testing
6.3.1.3 Micro tensile die (Small punched dumb-bell) test specimens

The sample shall be machined to produce a sheet or disc of thickness 1,5 to 2,5 mm, or

turned to produce a rectangular sectioned ring which can be cut and flattened to give

such a sheet.

Test specimens conforming to the shape shown in Figure 2 and the dimensions given

in table 1 for the micro tensile die shall be punched from sheet or disc using a single

stroke press and the appropriate knife-edged die. In any one test specimen, the

thickness of the narrow parallel-sided portion shall nowhere deviate by more than two

percent from the mean. The sheet shall be supported, while the test specimens are

punched from it, on a slightly yielding material having a smooth surface (e. g. leather,

rubber, or high quality cardboard) on a flat rigid base. The cutting edge of the die

shall be sharp and free from notches or other visual defects. In the case of thin sheet

or skived tape of thickness from 0,125 mm to 3,0 mm, the test specimens shall be
punched from the material ‘as received ’.
Table 1 - Dimensions of dumb-bell test specimens
Micro tensile die Large dumb-bells
(Figure 3)
(Figure 2)
mm mm
115
A overall length, minimum 38
25+ 1
B width at ends, minimum 15
C length of narrow parallel-sided portion 12 t 0,5 33*2
portion 5 t 0,25 6 t 0,4
D width of narrow parallel-sided
14+ 1
E small radius 5 t 0,5
F large radius 25iz2
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SIST EN ISO 13000-2:1999
IS0 13000-2:1997(E)
Dimensions in millimetres
Rockwell C hardness 45 to 50
2 75
Steel-rule die
(Inside dimensions for die are the sa
...

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