BS 9750:1990

Committees responsible
Foreword
Specification
Section 1. General
1.1 Scope
1.2 Related documents
1.3 Terminology
1.4 Letter symbols, signs and abbreviations
1.5 Graphical symbols
1.6 Marking
1.7 Eligibility for qualification approval
1.8 Structurally similar components
1.9 Delayed delivery
1.10 Supplementary procedure for qualification approval
1.11 Certified test records
1.12 Standard ratings and characteristics
1.13 Additional information (not for inspection
      purposes)
1.14 Procedure to be followed in the event of failure
      at group C or D inspection
1.15 Ordering information
1.16 Release for delivery before the completion of
      group B tests
Section 2. Tests
2.1 Conditions of test
2.2 Test fixtures (electrical measurements)
2.3 Visual inspection
2.4 Dimensioning and gauging procedure
2.5 Electrical test procedures
2.6 Environmental test procedures
2.7 Endurance at 70 deg C
Appendices
A Colour coding for inductors
B Recommended schemes for the inspection of
      structurally similar components
C Example of a certified test record
D Typical test substrate for SMDs
E Residual inductance measurement
Tables
1 Temperature characteristic of inductance
2 Slot width for gauge plates
3 Sampling plan for group C test for inductors
Figures
1 Gauge plate for components with axial wire
      terminations
2 Gauge plate for components with a diameter of 5 mm
      and over, with axial wire termination and with
      glass/metal seals or with discontinuities in the
      wire terminations
3 Ellipsoidal component with radial leads
4 Bending jig for surface mounting components
5 Colour coding for inductors
6 Typical test substrate for SMDs
7 Test fixture TF-A (for axial leads)
8 Test fixture TF-B (for axial leads)
9 Test fixture TF-C (for radial leads only)
10 Typical test fixture TF-D for unmounted SMDs
11 Typical test fixture TF-E for substrate mounted
      SMDs
12 Shorting bars for test fixtures
13 Test clip, right hand or left hand

Essential test procedures and general requirements.