BS EN IEC 60721-3-4:2019 Classification of environmental conditions Classification of groups of environmental parameters and their severities. Stationary use at non-weatherprotected locations

Climate
Grades (quality)
Environment (working)
Classification systems
Electrical components
Stationary
Electrical equipment
Electronic equipment and components

Link: BS EN IEC 60721-3-4:2019 Classification of environmental conditions Classification of groups of environmental parameters and their severities. Stationary use at non-weatherprotected locations
Source: BSI Standards

PD IEC TR 61577-5:2019 Radiation protection instrumentation. Radon and radon decay product measuring instruments General properties of radon and radon decay products and their measurement methods

Products
Measurement
Radon
Instrumentation
Radiation protection

Link: PD IEC TR 61577-5:2019 Radiation protection instrumentation. Radon and radon decay product measuring instruments General properties of radon and radon decay products and their measurement methods
Source: BSI Standards

BS EN 1401-1:2019 Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinyl chloride) (PVC-U) Specifications for pipes, fittings and the system

Softening point
Size
Dimensions
Drainage
Colour
Sealing rings
Deformation
Chemical-resistance tests
Stiffness
Leak tests
Pipe couplings
Recycling
Performance
Pressure testing
Unplasticized polyvinyl chloride
Marking
Thermal resistance
Shape
Water supply and waste systems (buildings)
Testing conditions
Plastic pipelines
Plastics
Diameter
Designations
Underground
Sewers
Pipe fittings
Drainpipes
Impact strength
Spigot-and-socket joints
Dimensional tolerances
Length
Pipes
Thickness
Polyvinyl chloride

Link: BS EN 1401-1:2019 Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinyl chloride) (PVC-U) Specifications for pipes, fittings and the system
Source: BSI Standards