EN ISO 148-2:2008
(Main)Metallic materials - Charpy pendulum impact test - Part 2: Verification of testing machines (ISO 148-2:2008)
Metallic materials - Charpy pendulum impact test - Part 2: Verification of testing machines (ISO 148-2:2008)
ISO 148-2:2008 covers the verification of the constructional elements of pendulum-type impact testing machines. It is applicable to machines with 2 mm or 8 mm strikers used for pendulum impact tests carried out, for instance, in accordance with ISO 148-1.
It can analogously be applied to pendulum impact testing machines of various capacities and of different design.
Impact machines used for industrial, general or research laboratory testing of metallic materials in accordance with ISO 148-2:2008 are referred to as industrial machines. Those with more stringent requirements are referred to as reference machines. Specifications for the verification of reference machines are found in ISO 148-3.
ISO 148-2:2008 describes two methods of verification: a direct method and an indirect method.
Metallische Werkstoffe - Kerbschlagbiegeversuch nach Charpy - Teil 2: Prüfung der Prüfmaschinen (Pendelschlagwerke) (ISO 148-2:2008)
In diesem Teil von ISO 148 wird die Prüfung der einzelnen Teile eines Pendelschlagwerks festgelegt. Er gilt für Pendelschlagwerke mit 2 mm Hämmern oder mit 8 mm Hämmern, die z. B. für Kerbschlagbiegeversuche nach ISO 148 1 angewendet werden.
Dieser Teil von ISO 148 kann analog auf Pendelschlagwerke anderer Bauarten angewendet werden, die auch ein anderes Arbeitsvermögen haben können.
Pendelschlagwerke, die für die Prüfung metallischer Werkstoffe nach dem vorliegenden Teil von ISO 148 für betriebliche, für allgemeine und für Forschungszwecke vorgesehen sind, werden als Betriebs Pendelschlag-werke bezeichnet. Pendelschlagwerke, für die strengere Anforderungen gelten, werden als Referenz-Pendel-schlagwerke bezeichnet. Festlegungen für die Prüfung von Referenz Pendelschlagwerken sind in ISO 148 3 enthalten.
In diesem Teil von ISO 148 werden zwei Verfahren zur Prüfung der Prüfmaschinen beschrieben:
a) Das direkte Verfahren, bei dem eine statische Einzelprüfung der kritischen Teile des Pendelschlagwerks unter Einbeziehung von Messungen durchgeführt wird um sicherzustellen, dass die Anforderungen dieses Teils von ISO 148 erfüllt werden. Die für Prüfung und Kalibrierung eingesetzten Geräte sind auf nationale Normale rückführbar. Direkte Verfahren werden angewendet, nachdem ein Pendelschlagwerk aufgestellt oder repariert wurde oder wenn nach dem indirekten Verfahren fehlerhafte Ergebnisse ermittelt werden;
b) das indirekte Verfahren, bei dem eine dynamische Prüfung an Referenzproben durchgeführt wird, um den Anzeigebereich an verschiedenen Stellen der Skala zu überprüfen.
Ein Pendelschlagwerk entspricht erst dann diesem Teil von ISO 148, wenn Prüfungen sowohl nach dem direkten als auch nach dem indirekten Verfahren durchgeführt wurden und das Pendelschlagwerk den in den Abschnitten 6 und 7 festgelegten Anforderungen entspricht.
Die Anforderungen an die Referenzproben werden in ISO 148 3 festgelegt.
(....)
Matériaux métalliques - Essai de flexion par choc sur éprouvette Charpy - Partie 2: Vérification des machines d'essai (mouton-pendule) (ISO 148-2:2008)
L'ISO 148-2:2008 traite de la vérification des éléments des machines d'essai de flexion par choc (moutons-pendules). Elle s'applique aux machines ayant des couteaux de 2 mm ou de 8 mm utilisées pour les essais de flexion par choc effectués par exemple conformément à l'ISO 148-1.
Elle peut s'appliquer de manière analogue aux moutons-pendules de capacités ou de conception différentes.
Les machines de choc utilisées pour les essais des matériaux métalliques par des laboratoires industriels, généralistes ou de recherche conformément à l'ISO 148-2:2008 sont qualifiées de machines industrielles. Celles répondant à des exigences plus contraignantes sont qualifiées de machines de référence. Les exigences relatives à la vérification des machines de référence sont fixées dans l'ISO 148-3.
L'ISO 148-2:2008 décrit deux méthodes de vérification: une méthode directe et une méthode indirecte.
Kovinski materiali - Udarni preskus po Charpyju - 2. del: Preverjanje preskusnih naprav (ISO 148-2:2008)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2009
1DGRPHãþD
SIST EN 10045-2:1996
SIST EN 10045-2:1996/AC1:1997
Kovinski materiali - Udarni preskus po Charpyju - 2. del: Preverjanje preskusnih
naprav (ISO 148-2:2008)
Metallic materials - Charpy pendulum impact test - Part 2: Verification of testing
machines (ISO 148-2:2008)
Metallische Werkstoffe - Kerbschlagbiegeversuch nach Charpy - Teil 2: Prüfung der
Prüfmaschinen (Pendelschlagwerke) (ISO 148-2:2008)
Matériaux métalliques - Essai de flexion par choc sur éprouvette Charpy - Partie 2:
Vérification des machines d'essai (mouton-pendule) (ISO 148-2:2008)
Ta slovenski standard je istoveten z: EN ISO 148-2:2008
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 148-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2008
ICS 77.040.10
English Version
Metallic materials - Charpy pendulum impact test - Part 2:
Verification of testing machines (ISO 148-2:2008)
Matériaux métalliques - Essai de flexion par choc sur Metallische Werkstoffe - Kerbschlagbiegeversuch nach
éprouvette Charpy - Partie 2: Vérification des machines Charpy - Teil 2: Prüfung der Prüfmaschinen
d'essai (mouton-pendule) (ISO 148-2:2008) (Pendelschlagwerke) (ISO 148-2:2008)
This European Standard was approved by CEN on 19 November 2008.
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 CEN 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 CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 148-2:2008: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 148-2:2008) has been prepared by Technical Committee ISO/TC 164 "Mechanical
testing of metals" in collaboration with Technical Committee ECISS/TC 1 "Steel - Mechanical testing" the
secretariat of which is held by AFNOR.
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 2009, and conflicting national standards shall be withdrawn at
the latest by June 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 148-2:2008 has been approved by CEN as a EN ISO 148-2:2008 without any modification.
INTERNATIONAL ISO
STANDARD 148-2
Second edition
2008-12-15
Metallic materials — Charpy pendulum
impact test —
Part 2:
Verification of testing machines
Matériaux métalliques — Essai de flexion par choc sur éprouvette
Charpy —
Partie 2: Vérification des machines d'essai (mouton-pendule)
Reference number
ISO 148-2:2008(E)
©
ISO 2008
ISO 148-2:2008(E)
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ii © ISO 2008 – All rights reserved
ISO 148-2:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions. 2
3.1 Definitions pertaining to the machine . 2
3.2 Definitions pertaining to energy. 3
3.3 Definitions pertaining to test pieces. 4
4 Symbols and abbreviated terms . 4
5 Testing machine. 6
6 Direct verification. 6
6.1 General. 6
6.2 Foundation/installation . 6
6.3 Machine framework . 6
6.4 Pendulum. 7
6.5 Anvil and supports . 11
6.6 Indicating equipment. 11
7 Indirect verification by use of reference test pieces. 12
7.1 Reference test pieces used . 12
7.2 Absorbed energy levels . 12
7.3 Requirements for reference test pieces . 12
7.4 Limited direct verification . 12
7.5 Bias and repeatability. 13
8 Frequency of verification . 13
9 Verification report. 14
9.1 General. 14
9.2 Direct verification. 14
9.3 Indirect verification. 14
10 Uncertainty . 14
Annex A (informative) Measurement uncertainty of the result of the indirect verification of a
Charpy pendulum impact machine. 21
Annex B (informative) Measurement uncertainty of the results of the direct verification of a
Charpy pendulum impact testing machine . 25
Annex C (informative) Direct method of verifying the geometric properties of pendulum impact
testing machines using a jig. 31
Bibliography . 38
ISO 148-2:2008(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 2.
The main task of technical committees is to prepare International Standards. 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 document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 148-2 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee
SC 4, Toughness testing — Fracture (F), Pendulum (P), Tear (T).
This second edition cancels and replaces the first edition (ISO 148-2:1998), which has been technically
revised.
ISO 148 consists of the following parts, under the general title Metallic materials — Charpy pendulum impact
test:
⎯ Part 1: Test method
⎯ Part 2: Verification of testing machines
⎯ Part 3: Preparation and characterization of Charpy V-notch test pieces for indirect verification of
pendulum impact machines
iv © ISO 2008 – All rights reserved
ISO 148-2:2008(E)
Introduction
The suitability of a pendulum impact testing machine for acceptance testing of metallic materials has usually
been based on a calibration of its scale and verification of compliance with specified dimensions, such as the
shape and spacing of the anvils supporting the specimen. The scale calibration is commonly verified by
measuring the mass of the pendulum and its elevation at various scale readings. This procedure for
evaluation of machines had the distinct advantage of requiring only measurements of quantities that could be
traced to national standards. The objective nature of these traceable measurements minimized the necessity
for arbitration regarding the suitability of the machines for material accepta
...
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