PD CEN/TS 15223:2017 Plastics piping systems. Validated design parameters of buried thermoplastics piping systems

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

Link: PD CEN/TS 15223:2017 Plastics piping systems. Validated design parameters of buried thermoplastics piping systems
Source: BSI Standards

BS EN IEC 61010-2-120:2018 Safety requirements for electrical equipment for measurement, control, and laboratory use Particular safety requirements for machinery aspects of equipment

Electrical equipment
Electrical testing
Electrical components
Electrical measurement
Safety measures
Electronic equipment and components
Electrical insulation devices
Electrical measuring instruments
Current measurement
Electrical safety

Link: BS EN IEC 61010-2-120:2018 Safety requirements for electrical equipment for measurement, control, and laboratory use Particular safety requirements for machinery aspects of equipment
Source: BSI Standards

BS IEC 61937-13:2018 Digital audio. Interface for non-linear pcm encoded audio bitstreams applying IEC 60958 MPEG-H 3D Audio

Digital signals
Acoustic signals
Interfaces (data processing)
Digital recording methods
Data transmission
Pulse-code modulation
Interfaces
Information exchange
Audio systems
Audio equipment
Coding (data conversion)
Binary digits

Link: BS IEC 61937-13:2018 Digital audio. Interface for non-linear pcm encoded audio bitstreams applying IEC 60958 MPEG-H 3D Audio
Source: BSI Standards