EN ISO 6871-2:1996
(Main)Dental base metal casting alloys - Part 2: Nickel-based alloys (ISO 6871-2:1994)
Dental base metal casting alloys - Part 2: Nickel-based alloys (ISO 6871-2:1994)
To specify requirements and test methods for nickel based dental casting alloys suitable for use in fabrication of removable dental applications.
Edelmetallfreie Dental-Gußlegierungen - Teil 2: Nickel-Basis Legierungen (ISO 6871-2:1994)
Dieser Teil der ISO 6871 legt die Anforderungen und Prüfmethoden für Nickel-Basis Dental-Gußlegierungen fest, die für die Herstellung von herausnehmbaren Zahnersatz geeignet sind. Er gilt nicht für Legierungen, die für Gerüste von Metall-Keramik-Zahnersatz gedacht sind.
Alliages dentaires non précieux à couler - Partie 2: Alliages à base de nickel (ISO 6871-2:1994)
L'IEC 62841-2-11:2015 s'applique aux scies alternatives telles que les scies sauteuses et les scies sabres. La tension assignée est inférieure à 250 V pour les outils à courant monophasé alternatif ou continu, et inférieure à 480 V pour les outils à courant alternatif triphasé. La puissance assignée est inférieure à 3 700 W. Les limites d'application de la présente Norme aux outils fonctionnant sur batterie sont indiquées dans l'Annexe K. La présente Norme traite des dangers présentés par les outils, encourus par tous les individus dans l'utilisation normale et dans l'utilisation impropre raisonnablement prévisible de ces outils. Les outils électroportatifs, qui peuvent être montés sur un support de travail pour être utilisés comme outils installés à poste fixe sans aucune modification de l'outil lui-même, sont compris dans le domaine portatif et d'un support est considérée comme un outil portable, donc couvert par la Partie 3 applicable. La présente Partie 2-11 doit être utilisée conjointement avec la première édition de l'IEC 62841-1. L'attention des Comités Nationaux est attirée sur le fait que les fabricants d'appareils et les organismes d'essai peuvent avoir besoin d'une période transitoire après la publication d'une nouvelle publication IEC, ou d'une publication amendée ou révisée, pour fabriquer des produits conformes aux nouvelles exigences et pour adapter leurs équipements aux nouveaux essais ou aux essais révisés. Le comité recommande que le contenu de cette publication soit entériné au niveau national au plus tôt 36 mois après la date de publication.
Mots clés: scie alternative, scie sauteuse, scie sabre, outils protatifs, outil portable
Dental base metal casting alloys - Part 2: Nickel-based alloys (ISO 6871-2:1994)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 6871-2:2000
01-januar-2000
Dental base metal casting alloys - Part 2: Nickel-based alloys (ISO 6871-2:1994)
Dental base metal casting alloys - Part 2: Nickel-based alloys (ISO 6871-2:1994)
Edelmetallfreie Dental-Gußlegierungen - Teil 2: Nickel-Basis Legierungen (ISO 6871-
2:1994)
Alliages dentaires non précieux a couler - Partie 2: Alliages a base de nickel (ISO 6871-
2:1994)
Ta slovenski standard je istoveten z: EN ISO 6871-2:1996
ICS:
11.060.10 =RERWHKQLþQLPDWHULDOL Dental materials
SIST EN ISO 6871-2:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 6871-2:2000
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SIST EN ISO 6871-2:2000
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SIST EN ISO 6871-2:2000
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SIST EN ISO 6871-2:2000
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SIST EN ISO 6871-2:2000
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SIST EN ISO 6871-2:2000
INTERNATIONAL IS0
687 l-2
STANDARD
First edition
1994-09-15
Dental base metal casting alloys -
Part 2:
Nickel-based alloys
Alliages dentaires non pr&ieux a couler -
Partie 2: Alliages d base de nickel
Reference number
IS0 68712:1994(E)
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SIST EN ISO 6871-2:2000
IS0 6871=2:1994(E)
Contents
Page
1
..............................................................................................
Scope
................ 1
Normative references .
1
Definitions .
1
............................................................................
Requirements
2
.................................................................... ................
Sampling
2
............................................ ......
Preparation of test specimens
3
Testing .
.............................. ....................... 3
Information and instructions
4
Marking .
Annexes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
A Static immersion test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . 6
Recommendations for handling alloys containing beryllium
B
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Bibliography
0 IS0 1994
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 W-1 21 I Geneve 20 l Switzerland
Printed in Switzerland
II
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SIST EN ISO 6871-2:2000
0 IS0 IS0 6871=2:1994(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
(I EC) 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 6871-2 was prepared by Technical Committee
lSO/TC 106, Dentistry, Subcommittee SC 2, Prosthodontic materials.
This first edition of IS0 6871-2, together with IS0 6871-1, cancel and re-
place the first edition of IS0 6871 published in 1987, of which they con-
stitute a technical revision.
IS0 6871 consists of the following parts, under the general title Dental
base metal casting alloys:
- Part I: Cobalt-based alloys
- Part 2: Nickel-based alloys
Annex A forms an integral part of this part of IS0 6871. Annexes B and
C are for information only.
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SIST EN ISO 6871-2:2000
0 IS0
PSO 6871=2:1994(E)
Introduction
Dental base metal casting alloys are suitable for use in fabrication of re-
movable dental appliances.
Specific qualitative and quantitative requirements of freedom from bio-
logical hazard are not included in this part of IS0 6871 but it is rec-
ommended that, in assessing possible biological or toxicological hazards,
reference should be made to lSO/TR 7405121 and IS0 10993-1[41.
For other compositions the manufacturer has to present adequate evi-
dence of biological investigations in accordance with lSO/TR 7405 or
IS0 10993-1, and/or clinical investigations in order to assess the biological
response of the material.
Specific quantitative requirements for corrosion resistance are not in-
cluded in this part of IS0 6871. In order to get information of the kind and
amount of metal ions leached from the alloy, reference should be made
to lSO/TR 10271[3], reference number 14, Static immersion test, de-
scribed in annex A.
Beryllium is cons id ered to be hazardous in handling unless adequate pre-
cautions are me t. Annex B contains those recommended precautions
which are known to be adequate at the time of publication of this part of
IS0 6871.
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SIST EN ISO 6871-2:2000
INTERNATIONAL STANDARD 0 IS0 IS0 6871=2:1994(E)
Dental base metal casting alloys -
Part 2:
Nickel-based alloys
3.2 alloying element: Metallic or non-metallic el-
1 Scope
ements added to or retained by a basic metal for the
purpose of giving that metal certain special properties.
This part of IS0 6871 specifies requirements and test
methods for nickel-based dental casting alloys suit-
3.3 impurity: Metallic or non-metallic elements
able for use in fabrication of removable dental ap-
present but which are not intentionally added to or
pliances. It does not apply to alloys intended for use
retained by a metal.
in fabrication of metal-ceramic dental restorations.
3.4 casting alloy: Alloy primarily intended for the
2 Normative references
production of castings.
The following standards contain provisions which,
3.5 base metal casting alloy: Casting alloy in which
through reference in this text, constitute provisions
cobalt or nickel is the basic metallic element.
of this part of IS0 6871. At the time of publication, the
editions indicated were valid. All standards are subject
3.6 nickel-based dental casting alloy: Dental cast-
to revision, and parties to agreements based on this
ing alloy in which nickel is the constituent present in
part of IS0 6871 are encouraged to investigate the
the highest percentage by mass (main constituent).
possibility of applying the most recent editions of the
standards indicated below. Members of IEC and IS0
maintain registers of currently valid International
Standards.
4 Requirements
IS0 3696:1987, Water for analytical laboratory use -
Specification and test methods.
4.1 Composition
IS0 6892: 1984, Metallic materials - Tensile testing.
The chemical composition of the casting alloy shall
meet the following requirements:
ASTM-B 600-74, Recommended practice for descal-
ing and cleaning titanium and titanium alloy surfaces.
Nickel main constituent
not less than
Chromium
3 Definitions
20 % (m/m)
Molybdenum not less than
For the purposes of this part of IS0 6871, the follow-
4 % (m/m)
ing definitions apply.
Nickel -I- Cobalt + Chromium not less than
3.1 alloy: Metallic substance consisting of a mixture
85 % (m/m)
of the basic metallic element (the element predomi-
nating by mass) and other elements such as alloying If the alloy contains beryllium, the beryllium content
elements and impurities. shall not exceed 2 % (m/m).
1
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SIST EN ISO 6871-2:2000
IS0 6871=2:1994(E)
Constituents of the alloy in excess of 20 % (m/m) shall
be within 2 % (m/m) of the value stated [see
Table 1 - Mechanical properties
clause 8 b) and 9.2 d)]. Constituents in excess of
2 % (m/m) but not in excess of 20 % (m/m) shall be
Proof stress of
Percentage elongation
within 1 % (m/m) of the value stated [see clause 8 b)
non-proportional
after fracture
elongation, R,, 2
and 9.2 d)].
%
MPa
Other compositions with nickel as the basic metallic
min.
min.
element may be permissible subject to approval by
regulatory authorities (see the Introduction). For such
500 310
alloys, all alloying elements with more than
0,l % (m/m) shall be given on the package or in the
accompanying literature.
5 Sampling
The sample shall be adequate to prepare the speci-
mens required for 6.2 and A.1, and shall be from one
batch.
4.2 Biocompatibility
Further sample and packaging shall be made available
for visual inspection and analytical procedures in ac-
Se
...
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