16/30316782 DC : DRAFT APR 2016
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
BS ISO 14997 - OPTICS AND PHOTONICS - TEST METHODS FOR SURFACE IMPERFECTIONS OF OPTICAL ELEMENTS
30-09-2017
18-04-2016
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Inspection methods and levels
5 General information regarding visual inspection
6 Evaluation methods for the visibility based
specification of surface imperfections
7 Evaluation methods for the dimensional based
specification of surface imperfections
8 Line-Equivalent Width (LEW) and Spot-Equivalent
Diameter (SED)
9 Objective inspection methods
10 Test report
Annex A (normative) - Visual inspection equipment
Annex B (informative) - Recommended dimensions of
artefacts on a scale comparison plate
Annex C (informative) - Description of a microscope
image comparator
Annex D (normative) - Number of allowed smaller
imperfections with equivalent area of the
specified grade
Bibliography
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