BS EN 573-3:2019 Aluminium and aluminium alloys. Chemical composition and form of wrought products Chemical composition and form of products

Chemical composition
Sheet materials
Aluminium
Aluminium alloys
Forging stock
Ingots
Pipes
Wrought alloys
Strips
Foil
Compositional tolerances
Drawing (forming process)
Materials in contact with food
Semi-finished products
Designations
Extruding
Forgings
Wires

Link: BS EN 573-3:2019 Aluminium and aluminium alloys. Chemical composition and form of wrought products Chemical composition and form of products
Source: BSI Standards

BS EN IEC 61158-6-21:2019 Industrial communication networks. Fieldbus specifications Application layer protocol specification. Type 21 elements

Automatic control systems
Real-time systems
Data transfer
Local area networks
Data processing
Data transmission
Data circuit-terminating equipment
Industrial
Process control
CSMA/CD networks
Computer networks

Link: BS EN IEC 61158-6-21:2019 Industrial communication networks. Fieldbus specifications Application layer protocol specification. Type 21 elements
Source: BSI Standards

BS EN IEC 61158-6-12:2019 Industrial communication networks. Fieldbus specifications Application layer protocol specification. Type 12 elements

Data transmission
Fieldbus
Industrial
Open systems interconnection
Bus networks
Process control
Computer networks
Automatic control systems
Communication networks
Application layer (OSI)
Interfaces (data processing)
Communication procedures

Link: BS EN IEC 61158-6-12:2019 Industrial communication networks. Fieldbus specifications Application layer protocol specification. Type 12 elements
Source: BSI Standards