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BS ISO 21395-2:2022

BS ISO 21395-2:2022

$167.15

Optics and photonics. Test method for refractive index of optical glasses – V-block refractometer method

Published By Publication Date Number of Pages
BSI 2022 38
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Principles
11 5 Measuring equipment
5.1 General
12 5.2 Light source
13 5.3 Bandpass filter
5.4 Slit
5.5 Collimator lens
5.6 V-block prism
14 5.7 Origin-point reference block
5.8 Telescope
15 5.9 Detector
5.10 Deviation-angle measuring device
5.11 Refractive index matching liquid
6 Shapes of origin-point reference block and specimen
6.1 General
6.2 Apex angle
6.3 Contact face with V-block prism
16 7 Measurement method
7.1 Measurement environment
7.1.1 Temperature
7.1.2 Atmospheric pressure
7.2 Measurement
7.2.1 General
7.2.2 Preparation for measurement
7.2.3 Setting of deviation-angle origin point (0°)
17 7.2.4 Adjustment of V-block prism
7.2.5 Measurement of deviation angle
18 7.2.6 Calculation of refractive index
8 Indication
9 Test report
20 Annex A (normative) Refractive index matching liquid
22 Annex B (informative) Telescope with autocollimation function
23 Annex C (normative) Alternative measurement
32 Annex D (normative) Measurement with reference specimen
34 Bibliography

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BS ISO 21395-2:2022
$167.15