EN ISO 7491:2000

Dental materials - Determination of colour stability (ISO 7491:2000)

Zahnärztliche Werkstoffe - Bestimmung der Farbbeständigkeit (ISO 7491:2000)

Diese Internationale Norm legt ein Verfahren zur Bestimmung der Farbbeständigkeit von zahnärztlichen Werkstoffen fest, nachdem diese Licht und Wasser ausgesetzt waren.

Produits dentaires - Détermination de la stabilité de couleur (ISO 7491:2000)

La présente Norme internationale spécifie une méthode pour la détermination de la stabilité de couleur des produits dentaires après exposition à la lumière et à l'eau.

Dental materials - Determination of colour stability (ISO 7491:2000)

General Information

• Status: Published
• Publication Date: 31-Aug-2000
• ICS: 11.060.10 - Dental materials
• Technical Committee: CEN/TC 55 - Dentistry
• Drafting Committee: CEN/TC 55 - Dentistry
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 26-Feb-2008
• Completion Date: 26-Feb-2008
• Ref Project: SIST EN ISO 7491:2001 - Dental materials - Determination of colour stability (ISO 7491:2000)

Relations

• Replaces: EN 27491:1991 - Dentistry - Dental materials - Determination of colour stability of dental polymeric materials (ISO 7491:1985)
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2001
1DGRPHãþD
SIST EN 27491:2000
Dental materials - Determination of colour stability (ISO 7491:2000)
Dental materials - Determination of colour stability (ISO 7491:2000)
Zahnärztliche Werkstoffe - Bestimmung der Farbbeständigkeit (ISO 7491:2000)
Produits dentaires - Détermination de la stabilité de couleur (ISO 7491:2000)
Ta slovenski standard je istoveten z: EN ISO 7491:2000
ICS:
11.060.10 =RERWHKQLþQLPDWHULDOL Dental materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 7491
Second edition
2000-09-01
Dental materials — Determination of colour
stability
Produits dentaires — Détermination de la stabilité de couleur
Reference number
ISO 7491:2000(E)
©
ISO 2000
ISO 7491:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 7491:2000(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 International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 7491 was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee
SC 2, Prosthodontic materials.
This second edition cancels and replaces the first edition (ISO 7491:1985), which has been technically revised.
ISO 7491:2000(E)
Introduction
Colour stability is an important characteristic of dental materials and it is expected that the test methods in this
International Standard will be referred to in the International Standards specifying such materials.
iv © ISO 2000 – All rights reserved

INTERNATIONAL STANDARD ISO 7491:2000(E)
Dental materials — Determination of colour stability
1 Scope
This International Standard specifies a method for the determination of the colour stability of dental materials after
exposure to light and water.
2 Normative references
The following normative documents contain provisions which,
...