Performance testing
Life (durability)
Quality control
Designations
Electrical resistance
Strength of materials
Electromechanical devices
Sampling methods
Mechanical testing
All-or-nothing relays
Endurance testing
Relays
Marking
Inspection
Electrical testing
Approval testing
Switches
Fire resistance
Environmental testing
Communication equipment
Qualification approval
Electronic equipment and components
Performance
Thermal resistance
Electrical components
Solderability testing
Quality assurance systems
Assessed quality
Detail specification