SIST EN ISO 179-1:2001
(Main)Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact test (ISO 179-1:2000)
Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact test (ISO 179-1:2000)
Migrated from Progress Sheet (TC Comment) (2000-07-10): new Tc forecast in BP Bli 991026
Kunststoffe - Bestimmung der Charpy-Schlageigenschaften - Teil 1: Nichtinstrumentierte Schlagzähigkeitsprüfung (ISO 179-1:2000)
Plastiques - Détermination des caractéristiques au choc Charpy - Partie 1: Essai de choc non instrumenté (ISO 179-1:2000)
Polimerni materiali - Ugotavljanje udarne žilavosti pa Charpyju - 1. del: Preskus udarne žilavosti z neinstrumentalno metodo (ISO 179-1:2000)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 179-1:2001
01-junij-2001
Polimerni materiali - Ugotavljanje udarne žilavosti pa Charpyju - 1. del: Preskus
udarne žilavosti z neinstrumentalno metodo (ISO 179-1:2000)
Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact
test (ISO 179-1:2000)
Kunststoffe - Bestimmung der Charpy-Schlageigenschaften - Teil 1: Nichtinstrumentierte
Schlagzähigkeitsprüfung (ISO 179-1:2000)
Plastiques - Détermination des caractéristiques au choc Charpy - Partie 1: Essai de choc
non instrumenté (ISO 179-1:2000)
Ta slovenski standard je istoveten z: EN ISO 179-1:2000
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 179-1:2001 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 179-1:2001
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SIST EN ISO 179-1:2001
EUROPEAN STANDARD
EN ISO 179-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2000
ICS 83.080.01 Supersedes EN ISO 179:1996
English version
Plastics - Determination of Charpy impact properties - Part 1:
Non-instrumented impact test (ISO 179-1:2000)
Plastiques - Détermination des caractéristiques au choc Kunststoffe - Bestimmung der Charpy-Schlageigenschaften
Charpy - Partie 1: Essai de choc non instrumenté (ISO 179- - Teil 1: Nichtinstrumentierte Schlagzähigkeitsprüfung (ISO
1:2000) 179-1:2000)
This European Standard was approved by CEN on 3 December 2000.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
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© 2000 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 179-1:2000 E
worldwide for CEN national Members.
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SIST EN ISO 179-1:2001
Page 2
EN ISO 179-1:2000
CORRECTED 2001-05-09
Foreword
The text of the International Standard ISO 179-1:2000 has been prepared by Technical
Committee ISO/TC 61 "Plastics" in collaboration with Technical Committee CEN/TC 249
"Plastics", the secretariat of which is held by IBN.
This European Standard supersedes EN ISO 179:1996.
This European Standard shall be given the status of a national standard, either by publication
of an identical text or by endorsement, at the latest by June 2001, and conflicting national
standards shall be withdrawn at the latest by June 2001.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United
Kingdom.
Endorsement notice
The text of the International Standard ISO 179-1:2000 was approved by CEN as a European
Standard without any modification.
NOTE: Normative references to International Standards are listed in annex ZA (normative).
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SIST EN ISO 179-1:2001
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EN ISO 179-1:2000
Annex ZA (normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions
of any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications,
indicated by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 291 1997 Plastics - Standard atmospheres for EN ISO 291 1997
conditioning and testing
ISO 294-1 1996 Plastics - Injection moulding of test EN ISO 294-1 1998
specimens of thermoplastic materials -
Part 1: General principles, and moulding
of multipurpose and bar test specimens
ISO 294-3 1996 Plastics - Injection moulding of test EN ISO 294-3 1998
specimens of thermoplastic materials -
Part 3: Small plates
ISO 295 1991 Plastics - Compression moulding of test EN ISO 295 1998
specimens of thermosetting materials
ISO 2818 1994 Plastics - Preparation of test specimens EN ISO 2818 1996
by machining
ISO 3167 1993 Plastics - Multipurpose-test specimens EN ISO 3167 1996
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SIST EN ISO 179-1:2001
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SIST EN ISO 179-1:2001
INTERNATIONAL ISO
STANDARD 179-1
First edition
2000-12-15
Plastics — Determination of Charpy impact
properties —
Part 1:
Non-instrumented impact test
Plastiques — Détermination des caractéristiques au choc Charpy —
Partie 1: Essai de choc non instrumenté
Reference number
ISO 179-1:2000(E)
©
ISO 2000
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SIST EN ISO 179-1:2001
ISO 179-1:2000(E)
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ii © ISO 2000 – All rights reserved
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SIST EN ISO 179-1:2001
ISO 179-1:2000(E)
Contents Page
Foreword.iv
1 Scope .1
2 Normative references .2
3 Terms and definitions .2
4 Principle.3
5 Apparatus .4
6 Test specimens.4
7 Procedure .10
8 Calculation and expression of results.11
9 Precision.12
10 Test report .12
Annex A (informative) Additional methods for investigating the influence of surface effects.14
Annex B (informative) Precision data.16
© ISO 2000 – All rights reserved iii
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SIST EN ISO 179-1:2001
ISO 179-1:2000(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. 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. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
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.
Attention is drawn to the possibility that some of the elements of this part of ISO 179 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 179-1 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 2,
Mechanical properties.
It cancels and replaces ISO 179:1993, which has been technically revised.
ISO 179 consists of the following parts, under the general title Plastics — Determination of Charpy impact
properties:
� Part 1: Non-instrumented impact test
� Part 2: Instrumented impact test
Annexes A and B of this part of ISO 179 are for information only.
iv © ISO 2000 – All rights reserved
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SIST EN ISO 179-1:2001
INTERNATIONAL STANDARD ISO 179-1:2000(E)
Plastics — Determination of Charpy impact properties —
Part 1:
Non-instrumented impact test
1 Scope
1.1 This part of ISO 179 specifies a method for determining the Charpy impact strength of plastics under defined
conditions. A number of different types of specimen and test configurations are defined. Different test parameters
are specified according to the type of material, the type of test specimen and the type of notch.
1.2 The method is used to investigate the behaviour of specified types of specimen under the impact conditions
defined and for estimating the brittleness or toughness of specimens within the limitations inherent in the test
conditions. It may also be used for the determination of comparative data from similar types of material.
1)
1.3 The method has a greater range of applicability than that given in ISO 180 and is more suitable for the
testing of materials showing interlaminar shear fracture or of materials exhibiting surface effects due to
environmental factors.
1.4 The method is suitable for use with the following range of materials:
� rigid thermoplastic moulding and extrusion materials, including filled and reinforced compounds in addition to
unfilled types; rigid thermoplastics sheets;
� rigid thermosetting moulding materials, including filled and reinforced compounds; rigid thermosetting sheets,
including laminates;
� fibre-reinforced thermosetting and thermoplastic composites incorporating unidirectional or non-unidirectional
reinforcements such as mat, woven fabrics, woven rovings, chopped strands, combination and hybrid
reinforcements, rovings and milled fibres, sheet made from pre-impregnated materials (prepregs), including
filled and reinforced compounds;
� thermotropic liquid-crystal polymers.
1.5 The method is not normally suitable for use with rigid cellular materials and sandwich structures containing
cellular material. Also, notched specimens are not normally used for long-fibre-reinforced composites or
thermotropic liquid-crystal polymers.
1.6 The method is suited to the use of specimens which may be either moulded to the chosen dimensions,
machined from the central portion of a standard multipurpose test specimen (see ISO 3167) or machined from
finished or semifinished products such as mouldings, laminates and extruded or cast sheet.
1.7 The method specifies preferred dimensions for the test specimen. Tests which are carried out on specimens
of different dimensions or with different notches, or specimens which are prepared under different conditions, may
produce results which are not comparable. Other factors, such as the energy capacity of the apparatus, its impact
1) ISO 180:2000, Plastics — Determination of Izod impact strength.
© ISO 2000 – All rights reserved 1
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SIST EN ISO 179-1:2001
ISO 179-1:2000(E)
velocity and the conditioning of the specimens can also influence the results. Consequently, when comparative
data are required, these factors must be carefully controlled and recorded.
1.8 The method should not be used as a source of data for design calculations. Information on the typical
behaviour of a material can be obtained, however, by testing at different temperatures, by varying the notch radius
and/or the thickness and by testing specimens prepared under different conditions.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this part of ISO 179. For dated references, subsequent amendments to, or revisions of, any of these publications
do not apply. However, parties to agreements based on this part of ISO 179 are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain
registers of currently valid International Standards.
ISO 291:1997, Plastics� Standard atmospheres for conditioning and testing.
ISO 293:1986, Plastics� Compression moulding test specimens of thermoplastic materials.
ISO 294-1:1996, Plastics� Injection moulding of test specimens of thermoplastic materials� Part 1: General
principles, and moulding of multipurpose and bar test specimens.
ISO 294-3:1996, Plastics� Injection moulding of test specimens of thermoplastic materials� Part 3: Small plates.
ISO 295:1991, Plastics� Compression moulding of test specimens of thermosetting materials.
2)
ISO 1268:1974 , Plastics� Preparation of glass fibre reinforced, resin bonded, low pressure laminated plates or
panels for test purposes.
ISO 2602:1980, Statistical interpretation of test results� Estimation of the mean� Confidence interval.
ISO 2818:1994, Plastics� Preparation of test specimens by machining.
3)
ISO 3167:— , Plastics� Multipurpose test specimens.
ISO 10724-1:1998, Plastics� Injection moulding of test specimens of thermosetting powder moulding compounds
(PMCs)� Part 1: General principles and moulding of multipurpose test specimens.
ISO 13802:1999, Plastics� Verification of pendulum impact-testing machines� Charpy, Izod and tensile impact-
testing.
3 Terms and definitions
For the purposes of this part of ISO 179, the following terms and definitions apply.
2) Under revision as a series of 11 parts.
3) To be published. (Revision of ISO 3167:1993)
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SIST EN ISO 179-1:2001
ISO 179-1:2000(E)
3.1
Charpy unnotched impact strength
a
cU
impact energy absorbed in breaking an unnotched specimen, referred to the original cross-sectional area of the
specimen
2
NOTE It is expressed in kilojoules per square metre (kJ/m ).
3.2
Charpy notched impact strength
a
cN
impact energy absorbed in breaking a notched specimen, referred to the original cross-sectional area of the
specimen at the notch, where N = A, B or C depending on the notch type (see 6.3.1.1.2)
2
NOTE It is expressed in kilojoules per square metre (kJ/m ).
3.3
edgewise impact
e
direction of blow parallel to the dimension b, with impact on the narrow longitudinal surface h� l of the specimen
(see Figure 1, left, and Figures 2 and 4)
3.4
flatwise impact
f
direction of blow parallel to the dimension h, with impact on the broad longitudinal surface b � l of the specimen
(see Figure 1, right, and Figures 3 and 4)
3.5
normal impact
n
�laminar-reinforced plastics� impact with the direction of blow normal to the plane of reinforcement (see Figure 4)
3.6
parallel impact
p
�laminar-reinforced plastics� impact with the direction of blow parallel to the plane of reinforcement (see Figure 4)
4Principle
The test specimen, supported near its ends as a horizontal beam, is impacted by a single blow of a striker, with the
line of impact midway between the supports, and bent at a high, nominally constant, velocity.
In the case of edgewise impact with notched specimens, the line of impact is directly opposite the single notch (see
Figure 1, left, and Figure 2).
© ISO 2000 – All rights reserved 3
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SIST EN ISO 179-1:2001
ISO 179-1:2000(E)
Key
1 Direction of blow
2 Rod of pendulum
3 Test specimen
4Notch
5 Support
Figure 1 — Striking edge and support blocks for type 1 test specimen at moment of impact
5 Apparatus
5.1 Test machine
The principles, characteristics and verification of suitable test machines are detailed in ISO 13802.
5.2 Micrometers and gauges
Micrometers and gauges capable of measuring the essential dimensions of test specimens to an accuracy of
0,02 mm are required. For measuring the dimension b of notched specimens, the micrometer shall be fitted with
N
an anvil of width 2 mm to 3 mm and of suitable profile to fit the shape of the notch.
6 Test specimens
6.1 Preparation
6.1.1 Moulding and extrusion compounds
Specimens shall be prepared in accordance with the relevant material specification. When none exists, and unless
otherwise specified, specimens shall be either directly compression moulded or injection moulded from the material
in accordance with ISO 293, ISO 294-1, ISO 294-3, ISO 295 or ISO 10724-1 as appropriate, or machined in
accordance with ISO 2818 from sheet that has been compression or injection moulded from the compound. Type 1
specimens may be cut from multipurpose test specimens complying with ISO 3167, type A.
4 © ISO 2000 – All rights reserved
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SIST EN ISO 179-1:2001
ISO 179-1:2000(E)
Key
1 Direction of blow
Figure 2 — Charpy edgewise impact (e) with single-notched specimen
Key
1 Direction of blow
Figure 3 — Charpy flatw
...
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