Foreword
Committees responsible
Specification
Section one. Principles and mandatory procedures
1.1 General matters
1.1.1 Scope
1.1.2 Related documents
1.1.3 Terminology
1.1.4 Letter symbols, signs and abbreviations
1.1.5 Graphical symbols
1.1.6 Marking of the component and package
1.1.7 Eligibility for qualification approval
1.1.8 Structurally similar components
1.1.9 Delayed delivery
1.1.10 Supplementary procedures for qualification
approval
1.1.11 Certified test records
1.1.12 Standard ratings and characteristics
1.1.12.1 Operating temperature range (deg C)
1.1.12.2 Climatic category
1.1.12.3 Torque test
1.1.12.4 Bump severity
1.1.12.5 Vibration severity
1.1.12.6 Shock severity
1.1.12.7 Leak rate
1.1.13 Unchecked parameters
1.1.14 Procedure to be followed in the event of
failures at group C or D inspection
1.1.15 Ordering information
1.1.16 Release prior to completion of group B tests
1.2 Test procedures
1.2.1 Test and measurement conditions
1.2.2 Visual inspection
1.2.2.1 Visual test A
1.2.2.2 Visual test B
1.2.2.3 Visual test C
1.2.3 Dimensioning and gauging procedures
1.2.3.1 Dimensions test A
1.2.3.2 Dimensions test B
1.2.4 Electrical test procedures
1.2.4.1 Transducer attenuation at standard atmospheric
conditions
1.2.4.2 Amplitude response at standard atmospheric
conditions
1.2.4.3 Phase response at standard atmospheric
conditions
1.2.4.4 Group delay response at standard atmospheric
conditions
1.2.4.5 Time domain characteristics at standard
atmospheric conditions
1.2.4.6 Return attenuation
1.2.4.7 Electrical tests as a function of temperature
1.2.4.8 Intermodulation distortion
1.2.4.9 Insulation resistance
1.2.4.10 Amplitude response after application of
maximum power
1.2.5 Mechanical test procedures
1.2.6 Mechanical and environmental test procedures
1.2.6.1 Robustness of terminations
1.2.6.2 Sealing tests
1.2.6.3 Solderability
1.2.6.4 Rapid change of temperature, thermal shock in
air
1.2.6.5 Bump
1.2.6.6 Vibration
1.2.6.7 Shock
1.2.6.8 Acceleration (steady state)
1.2.6.9 Climatic sequence
1.2.6.10 Damp heat (steady state)
1.2.6.11 Salt mist
1.2.6.12 Mould growth
1.2.7 Endurance test procedure
1.2.7.1 Ageing
1.2.7.2 Shelf life
Section two. Procedures for the preparation of detail
specifications
2.1 Basic information
2.1.1 Originator of the specification
2.1.2 Number of the specification
2.1.3 Description of the component and assessment
level
2.1.4 Outline drawings
2.1.5 Ratings
2.1.6 Characteristics
2.1.7 Related documents
2.1.8 Additional information
2.1.9 Instructions for ordering components
2.2 Inspection requirements
2.3 Certified test records
2.3.1 General information
2.3.2 Measurement information
2.3.3 Explanatory information
Appendices
A Test circuits for the measurement of
transducer attenuation and amplitude frequency
response
B Phase characteristics and group delay
measurement test circuit
C Time domain measurement test circuit
D Return attenuation measurement test circuit
E Intermodulation distortion test circuit
F Example of a certified test record
Figures
1 Test circuit A. 1
2 Test circuit A. 2
3 Test circuit A. 3
4 Test circuit B. 1
5 Test circuit B. 2
6 Test circuit C. 1
7 Diagram of pulse characteristics
8 Test circuit D. 1
9 Test circuit E. 1