I.S. EN 27491:1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
DENTISTRY - DENTAL MATERIALS - DETERMINATION OF COLOUR STABILITY OF DENTAL POLYMERIC MATERIALS
Hardcopy , PDF
English
01-01-1992
23-07-2013
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
0 Introduction
1 Scope and field of application
2 References
3 Method of test
Defines a method for the determination of the colour stability of dental polymeric materials.
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 7491:2000 | Identical |
| EN 27491 : 1991 | Identical |
| ISO 4892:1981 | Plastics — Methods of exposure to laboratory light sources |
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