BS IEC 60898-3:2019 Electrical accessories. Circuit-breakers for overcurrent protection for household and similar installations Circuit-breakers for DC operation

Electrical equipment
Rated voltage
Domestic electrical installations
Electrical testing
Switchgear
Electrical measurement
Overcurrent protection
Power losses
Miniature circuit-breakers
Circuit-breakers
Marking
Ratings
Electrical protection equipment
Short-circuit current tests
Test equipment
Household equipment
Rated current
Testing conditions
Circuits
Overcurrent circuit-breakers
Sampling methods
Mechanical testing
Grades (quality)

Link: BS IEC 60898-3:2019 Electrical accessories. Circuit-breakers for overcurrent protection for household and similar installations Circuit-breakers for DC operation
Source: BSI Standards

BS EN 1295-1:2019 Structural design of buried pipelines under various conditions of loading General requirements

Pressure pipes
Imposed loading
Sewerage
Factor of safety
Pipes
Flow charts
Structural design
Mathematical calculations
Safety measures
Strength of materials
Sewers
Physical properties of soils
Semi-rigid structures
Loading
Flexible pipes
Rigid pipes
Pipelines
Underground
Formulae (mathematics)
Water supply
Drainage
Pipe laying

Link: BS EN 1295-1:2019 Structural design of buried pipelines under various conditions of loading General requirements
Source: BSI Standards

BS ISO 6721-9:2019 Plastics. Determination of dynamic mechanical properties Tensile vibration. Sonic-pulse propagation method

Shear stress
Ultrasonic testing
Tensile testing
Longitudinal waves
Frequencies
Test specimens
Dimensions
Plastics and rubber technology
Test equipment
Mechanical properties of materials
Plastics
Transverse waves

Link: BS ISO 6721-9:2019 Plastics. Determination of dynamic mechanical properties Tensile vibration. Sonic-pulse propagation method
Source: BSI Standards