NEN EN 180000 : 1997

Foreword
Section One, General
1. General
1.1 Scope
1.2 Related documents
1.3 Definitions
Section Two, Requirements
2. Requirements
2.1 Classification
2.1.1 Type
2.1.2 Style
2.1.3 Variant
2.1.4 Climatic category
2.1.5 Assessment level
2.2 Minimum mandatory test sequence
2.3 Documentation
2.3.1 Symbols
2.3.2 Specification system
         Blank detail specifications
         Detail specifications
2.3.3 Drawings
         Projection system
         Dimensional system
         Intermountability
2.3.4 Measurements
         Measurement method
         Reference components
         Gauges
2.3.5 Test data sheets
2.3.6 Instructions for use
2.4 Design and construction
2.4.1 Materials
2.4.2 Workmanship
2.5 Quality
2.6 Performance
2.7 Identification and marking
2.7.1 Variant identification number
2.7.2 Component marking
2.7.3 Package marking
2.8 Packaging
Section Three, Quality assessment procedures
3. Quality assessment procedures
3.1 Primary stage of manufacture
3.2 Structural similarity
3.3 Qualification approval procedures
3.3.1 Fixed sample procedure
3.3.2 Lot-by-Lot and periodic procedure
3.3.3 Sample size
3.3.4 Preparation of specimens
3.3.5 Qualification testing
3.3.6 Qualification failures
3.3.7 Maintenance of qualification approval
3.3.8 Qualification report
3.4 Quality conformance inspection
3.4.1 Lot-by-Lot inspection
         Formation of inspection lots
         Rejected lots
3.4.2 Periodic inspection
         Sample size
         Preparation of specimens
         Periodic inspection
         Periodic inspection failures
         Periodic inspection report
3.5 Certified records of released lots
3.6 Delayed deliveries
3.7 Delivery release before completion of
      group B tests
3.8 Alternative test methods
3.9 Unchecked parameters
Section Four, Measurement and environmental
      test procedures
4. Measurement and environmental test
      procedures
4.1 Standard conditions
4.2 Specimen
4.3 Cleaning of optical surfaces
4.4 Measurement procedures
4.4.1 Visual inspection
4.4.2 Dimensions and mass
4.4.3 Examination of product
4.4.4 Flammability
4.4.5 Attentuation value
4.4.6 Return loss
4.4.7 Spectral dependence of attenuation
      value and return loss
4.4.8 Polarization dependence of attenuation
      value and return loss
4.4.9 Modal dependence of attenuation
      value and return loss
4.4.10 Change in transmitted optical power
4.4.11 Maximum input power
4.5 Environmental test procedures
4.5.1 Vibration
4.5.2 Effectiveness of fibre or ferrule
      retention
4.5.3 Static load
4.5.4 Pulling
4.5.5 Torsion
4.5.6 Strength of coupling mechanism
4.5.7 Bending moment
4.5.8 Bump
4.5.9 Shock
4.5.10 Crush resistance
4.5.11 Axial compression
4.5.12 Impact
4.5.13 Acceleration
4.5.14 Drop
4.5.15 Coupling proof torque
4.5.16 Mould growth
4.5.17 Cold
4.5.18 Dry heat
4.5.19 Dump heat (steady state)
4.5.20 Climatic sequence
4.5.21 Condensation
4.5.22 Change of temperature
4.5.23 Sealing (sealed attenuators)
4.5.24 Sealing (water immersion)
4.5.25 Sealing (hermetic)
4.5.26 Salt mist
4.5.27 Dust
4.5.28 Industrial atmosphere (sulphur
       dioxide)
4.5.29 Low air pressure
4.5.30 Solar radiation
4.5.31 Nuclear radiation
4.5.32 Mechanical endurance
4.5.33 High temperature endurance
4.5.34 Resistance to solvents and
       contaminating fluids
4.5.35 Cable nutation
Annexes (informative)
A Size measurements
B Summary of definitions from IEC
       Publications

Contains: fibre optic attenuator requirements; measurement and test procedures for quality assessment. Applies to the family of fibre optic attenuators.