kSIST FprEN ISO 180:2023

Plastics - Determination of Izod impact strength (ISO/FDIS 180:2023)

1.1 This document specifies a method for determining the Izod 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.
1.3 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 and sheet made from pre-impregnated materials (prepregs);
— thermotropic liquid-crystal polymers.
1.4 The method is not normally suitable for use with rigid cellular materials and sandwich structures containing cellular material. Notched specimens are also not normally used for long-fibre-reinforced composites or thermotropic liquid-crystal polymers.
1.5 The method is suited to the use of specimens which can be either moulded to the chosen dimensions, machined from the central portion of a standard multipurpose test specimen (see ISO 20753) or machined from finished or semi-finished products such as mouldings, laminates and extruded or cast sheet.
1.6 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 velocity and the conditioning of the specimens can also influence the results. Consequently, when comparative data are required, these factors are to be carefully controlled and recorded.
1.7 The method is not intended to 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.

Kunststoffe - Bestimmung der Izod-Schlagzähigkeit (ISO/FDIS 180:2023)

Dieses Dokument legt ein Verfahren zur Bestimmung der Izod-Schlagzähigkeit von Kunststoffen unter festgelegten Bedingungen fest. Eine Anzahl von unterschiedlichen Probekörpertypen und Prüfanordnungen wird festgelegt. Unterschiedliche Prüfbedingungen werden entsprechend dem Werkstofftyp, dem Probekörpertyp und der Kerbart festgelegt.
Das Prüfverfahren wird angewendet, um das Verhalten festgelegter Probekörpertypen bei den festgelegten Schlagbedingungen zu untersuchen und die Sprödigkeit oder Zähigkeit von Probekörpern innerhalb der Grenzen der Prüfbedingungen zu beurteilen.

Plastiques - Détermination de la résistance au choc Izod (ISO/FDIS 180:2023)

1.1 Le présent document spécifié une méthode pour la détermination de la résistance au choc Izod des plastiques dans des conditions définies. De nombreux types de différentes éprouvettes et configurations d'essai sont définis. Divers paramètres d'essai sont spécifiés selon le type de matière, le type d'éprouvette et le type d'entaille.
1.2 La présente méthode est utilisée pour l'étude du comportement d'éprouvettes définies soumises à des conditions de choc déterminées et pour l'estimation de la fragilité ou de la ténacité des éprouvettes dans les limites inhérentes aux conditions d'essai.
1.3 La présente méthode est applicable à la gamme des matériaux suivants:
— matières thermoplastiques rigides pour moulage et extrusion, y compris les compositions chargées et renforcées en plus des types non chargés; feuilles thermoplastiques rigides;
— matières thermodurcissables rigides pour moulage, y compris les compositions chargées et renforcées; feuilles thermodurcissables rigides, y compris les stratifiés;
— composites thermoplastiques et thermodurcissables renforcés de fibres comportant des renforts unidirectionnels ou multidirectionnels tels que mat, tissus, tissus stratifils, fils de base coupés, combinaison de renforcements et hybrides, stratifils et fibres broyées, feuilles réalisées à partir de matières préimprégnées (prepregs);
— polymères de cristaux liquides thermotropes.
1.4 La présente méthode ne convient normalement pas à l'utilisation de matériaux alvéolaires rigides et de structures sandwichs contenant des matériaux alvéolaires. De même, les éprouvettes entaillées ne sont normalement pas utilisées pour les composites renforcés de longues fibres ou pour des polymères de cristaux liquides thermotropes.
1.5 La présente méthode est adaptée à l'utilisation d'éprouvettes qui sont moulées aux dimensions choisies, usinées à partir de la partie centrale de l'éprouvette normalisée à usages multiples (voir l'ISO 20753) ou encore usinées à partir de produits finis et semi-finis, tels que pièces moulées, stratifiées et feuilles extrudées ou coulées.
1.6 La présente méthode spécifie les dimensions préférentielles de l'éprouvette. Des essais réalisés avec des éprouvettes de dimensions et d'entailles différentes ou avec des éprouvettes préparées dans des conditions différentes, peuvent donner des résultats qui ne sont pas comparables. D'autres facteurs, tels que la capacité énergétique de l'appareillage, sa vitesse de percussion et le conditionnement des éprouvettes peuvent également avoir une répercussion sur les résultats. En conséquence, lorsque des résultats comparatifs sont nécessaires, ces facteurs devront être soigneusement contrôlés et enregistrés.
1.7 La présente méthode n'est pas destinée à être utilisée comme source de données pour les calculs relatifs à la conception. Cependant, des informations sur le comportement type de la matière peuvent être obtenues en effectuant l'essai à différentes températures, en faisant varier le rayon de l'entaille et/ou l'épaisseur, et en utilisant des éprouvettes préparées dans des conditions différentes.

Polimerni materiali - Ugotavljanje udarne žilavosti po Izodu (ISO/FDIS 180:2023)

General Information

• Status: Not Published
• Public Enquiry End Date: 30-Jun-2022
• ICS: 83.080.01 - Plastics in general
• Technical Committee: IPMA - Polimer materials and products
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 01-Mar-2023
• Due Date: 19-Apr-2023
• Completion Date: 01-Mar-2023
• Ref Project: FprEN ISO 180 - Plastics - Determination of Izod impact strength (ISO/FDIS 180:2023)

Relations

• Revised: SIST EN ISO 180:2020 - Plastics - Determination of Izod impact strength (ISO 180:2019)
• Effective Date: 22-Dec-2021
• Revised: SIST EN ISO 180:2020 - Plastics - Determination of Izod impact strength (ISO 180:2019)
• Effective Date: 18-Jan-2023
• Revised: SIST EN ISO 180:2020 - Plastics - Determination of Izod impact strength (ISO 180:2019)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 180:2022
01-junij-2022
Polimerni materiali - Ugotavljanje udarne žilavosti po Izodu (ISO/DIS 180:2022)
Plastics - Determination of Izod impact strength (ISO/DIS 180:2022)
Kunststoffe – Bestimmung der Izod-Schlagzähigkeit (ISO/DIS 180:2022)
Plastiques - Détermination de la résistance au choc Izod (ISO/DIS 180:2022)
Ta slovenski standard je istoveten z: prEN ISO 180
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
oSIST prEN ISO 180:2022 en,fr,de

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

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oSIST prEN ISO 180:2022
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oSIST prEN ISO 180:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 180
ISO/TC 61/SC 2 Secretariat: SAC
Voting begins on: Voting terminates on:
2022-04-13 2022-07-06
Plastics — Determination of Izod impact strength
Plastiques — Détermination de la résistance au choc Izod
ICS: 83.080.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 180:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
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oSIST prEN ISO 180:2022
ISO/DIS 180:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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© ISO 2022 – All rights reserved
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oSIST prEN ISO 180:2022
ISO/DIS 180:2022(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

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

2 Normative references ..................................................................................................................................................................................... 2

3 Terms and definitions .................................................................................................................................................................................... 2

4 Principle ........................................................................................................................................................................................................................ 3

5 Apparatus .................................................................................................................................................................................................................... 3

5.1 Test machine ............................................................................................................................................................................................. 3

5.2 Micrometers and gauges ................................................................................................................................................................ 3

6 Test specimens ....................................................................................................................................................................................................... 3

6.1 Preparation ................................................................................................................................................................................................ 3

6.1.1 Moulding and extrusion compounds ................................................................................................................ 3

6.1.2 Sheets ........................................................................................................................................................................................... 6

6.1.3 Long-fibre-reinforced materials ................................... ........................................................................................ 6

6.1.4 Checking ........................................................................................................................................... .......................................... 6

6.1.5 Notching ..................................................................................................................................................................................... 6

6.2 Anisotropy .................................................................................................................................................................................................. 7

6.3 Shape and dimensions ..................................................................................................................................................................... 7

6.3.1 General ........................................................................................................................................................................................ 7

6.3.2 Moulding and extrusion compounds ................................................................................................................ 7

6.3.3 Sheet materials, including long-fibre-reinforced materials ........................................................ 7

6.4 Number of test specimens ............................................................................................................................................................ 8

6.5 Conditioning.............................................................................................................................................................................................. 8

7 Procedure ....................................................................................................................................................................................................................8

8 Calculation and expression of results ........................................................................................................................................... 9

8.1 Unnotched specimens ...................................................................................................................................................................... 9

8.2 Notched specimens ............................................................................................................................................................................. 9

8.3 Statistical parameters...................................................................................................................................................................... 9

8.4 Significant figures................................................................................................................................................................................ 9

9 Precision ....................................................................................................................................................................................................................... 9

10 Test report .................................................................................................................................................................................................................. 9

Annex A (informative) Precision statement .............................................................................................................................................12

Bibliography .............................................................................................................................................................................................................................14

iii
© ISO 2022 – All rights reserved
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oSIST prEN ISO 180:2022
ISO/DIS 180:2022(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to

the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see

www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 2,

Mechanical behavior.

This fifth edition cancels and replaces the fourth edition (ISO 180:2019), which has been technically

revised.
The main changes are as follows:

— results of a round robin for unnotched specimens (see Annex A) have been added;

— symbols used in Equations (1) and (2) have been reviewed and updated;
— method designation in Clause 10 b) have been reviewed and updated.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www.iso.org/members.html.
© ISO 2022 – All rights reserved
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oSIST prEN ISO 180:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 180:2022(E)
Plastics — Determination of Izod impact strength
1 Scope

1.1 This document specifies a method for determining the Izod 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.
1.3 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 and sheet made from pre-

impregnated materials (prepregs);
— thermotropic liquid-crystal polymers.

1.4 The method is not normally suitable for use with rigid cellular materials and sandwich structures

containing cellular material. Notched specimens are also not normally used for long-fibre-reinforced

composites or thermotropic liquid-crystal polymers.

1.5 The method is suited to the use of specimens which can be either moulded to the chosen

dimensions, machined from the central portion of a standard multipurpose test specimen (see

ISO 20753) or machined from finished or semi-finished products such as mouldings, laminates and

extruded or cast sheet.

1.6 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 velocity and the conditioning of the specimens can also influence

the results. Consequently, when comparative data are required, these factors are to be carefully

controlled and recorded.

1.7 The method is not intended to 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.
© ISO 2022 – All rights reserved
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oSIST prEN ISO 180:2022
ISO/DIS 180:2022(E)
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 291, Plastics — Standard atmospheres for conditioning and testing

ISO 293, Plastics — Compression moulding of test specimens of thermoplastic materials

ISO 294-1, Plastics — Injection moulding of test specimens of thermoplastic materials — Part 1: General

principles, and moulding of multipurpose and bar test specimens

ISO 295, Plastics — Compression moulding of test specimens of thermosetting materials

ISO 1268 (all parts), Fibre-reinforced plastics — Methods of producing test plates.

ISO 2602, Statistical interpretation of test results — Estimation of the mean — Confidence interval

ISO 2818, Plastics — Preparation of test specimens by machining

ISO 10724-1, Plastics — Injection moulding of test specimens of thermosetting powder moulding compounds

(PMCs) — Part 1: General principles and moulding of multipurpose test specimens

ISO 13802, Plastics — Verification of pendulum impact-testing machines — Charpy, Izod and tensile

impact-testing
ISO 20753, Plastics — Test specimens
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
Izod unnotched impact strength

impact energy absorbed in breaking an unnotched specimen, referred to the original cross-sectional

area of the specimen
Note 1 to entry: It is expressed in kilojoules per square metre (kJ/m ).
3.2
Izod notched impact strength

impact energy absorbed in breaking a notched specimen, referred to the original cross-sectional area

of the specimen at the notch, with the pendulum striking the face containing the notch

Note 1 to entry: It is expressed in kilojoules per square metre (kJ/m ).
3.3
parallel impact

impact with the direction of blow parallel to the plane of reinforcement

Note 1 to entry: The direction of the blow in the Izod test is usually “edgewise parallel” (ep) (see Figure 1).

© ISO 2022 – All rights reserved
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oSIST prEN ISO 180:2022
ISO/DIS 180:2022(E)
3.4
normal impact

impact with the direction of blow normal to the plane of reinforcement

Note 1 to entry: This kind of impact is not usually used with the Izod test, but is indicated for the sake of

completion (see also Figure 1).
4 Principle

The test specimen, supported as a vertical cantilever beam, is broken by a single impact of a striker,

with the line of impact a fixed distance from the specimen clamp and, in the case of notched specimens,

from the centreline of the notch (see Figure 2).
5 Apparatus
5.1 Test machine

5.1.1 The principles, characteristics and verification of suitable test machines are detailed in

ISO 13802. ISO 13802 describes partial verification and full verification. In the case of full verification,

some items are difficult to verify when the apparatus is assembled. Such verifications are assumed to

be incumbent on the manufacturer.

5.1.2 Some plastics are sensitive to clamping pressure. When testing such materials, a means of

standardizing the clamping force shall be used and the clamping force shall be recorded in the test

report. The clamping force can be controlled by using a calibrated torque wrench or a pneumatic or

hydraulic device on the vice clamping screw.
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 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
...