SN EN 60793-1-54 : 2003
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
OPTICAL FIBRES - PART 1-54: MEASUREMENT METHODS AND TEST PROCEDURES - GAMMA IRRADIATION
29-11-2015
12-01-2013
INTRODUCTION
1 Scope
2 Normative references
3 Apparatus
3.1 Radiation source
3.1.1 Testing of environmental background radiation
3.1.2 Testing of adverse nuclear environments
3.2 Light source
3.3 Optical filters/monochromators
3.4 Cladding mode stripper
3.5 Fibre support and positioning apparatus
3.6 Optical splitter
3.7 Input launch simulator
3.7.1 Category A1 fibres (graded index multimode fibre)
3.7.2 Category B fibres (single-mode fibre)
3.7.3 Categories A2.1 and A2.2 (quasi-step and step
index fibres)
3.8 Detector - Signal detection electronics
3.9 Optical power meter
3.10 Radiation dosimeter
3.11 Temperature-controlled container
3.12 Test reel
4 Sampling and specimens
4.1 Specimens
4.1.1 Fibre specimen
4.1.2 Cable specimen
4.2 Specimen for environmental background radiation test
4.3 Specimen for testing adverse nuclear environments
4.4 Test reel
4.5 Ambient light shielding
5 Procedure
5.1 Calibration of radiation source
5.2 Preparation and conditioning
5.3 Attenuation measurement for environmental background
radiation
5.4 Attenuation measurement for adverse nuclear environment
6 Calculations
6.1 The change in optical attenuation [delta]A (environmental
background radiation test)
6.2 The change in optical transmittance, A (adverse nuclear
environmental radiation test)
6.3 Normalisation of the results
7 Results
7.1 Information to be provided with each measurement
7.2 Information available upon request
8 Specification information
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
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