BS EN IEC 61158-4-4:2019 Industrial communication networks. Fieldbus specifications Data-link layer protocol specification. Type 4 elements

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

Link: BS EN IEC 61158-4-4:2019 Industrial communication networks. Fieldbus specifications Data-link layer protocol specification. Type 4 elements
Source: BSI Standards

BS EN ISO 9514:2019 Paints and varnishes. Determination of the pot life of multicomponent coating systems. Preparation and conditioning of samples and guidelines for testing

Paints
Organic coatings
Life (durability)
Specimen preparation
Liquids
Coatings
Varnishes
Performance testing

Link: BS EN ISO 9514:2019 Paints and varnishes. Determination of the pot life of multicomponent coating systems. Preparation and conditioning of samples and guidelines for testing
Source: BSI Standards