BS ISO 4427-1:2019 Plastics piping systems for water supply and for drainage and sewerage under pressure. Polyethylene (PE) General

Pipe fittings
Plastics
Potable water
Water supply
Water
Physical properties of materials
Testing conditions
Plastic pipelines
Pipes
Temperature
Pressure
Pipework systems
Designations
Polyethylene

Link: BS ISO 4427-1:2019 Plastics piping systems for water supply and for drainage and sewerage under pressure. Polyethylene (PE) General
Source: BSI Standards

BS EN 15659:2019 Secure storage units. Classification and methods of test for resistance to fire. Light fire storage units

Technical documents
Storage
Storage furniture
Fire tests
Document storage devices
Security storage
Fire-resistant materials
Test specimens
Fire-test classifications
Classification systems
Storage equipment
Fire resistance

Link: BS EN 15659:2019 Secure storage units. Classification and methods of test for resistance to fire. Light fire storage units
Source: BSI Standards