BS EN 88-3-2022 Safety and control devices for gas burners and gas burning appliances Part 3: Pressure and/or flow rate regulators for inlet pressures up to and including 500 kPa, electronic types

BS EN 88-2-2022 Safety and control devices for gas burners and gas burning appliances Part 2: Pressure regulators for inlet pressures above 50 kPa up to and including 500 kPa CEN EN 88-1-2022 Safety and control devices for gas burners and gas burning appliances - Part 1: Pressure regulators for inlet pressures up to and including 50 kPa BS EN 84-2020 Durability of wood and wood-based products — Accelerated ageing of treated wood prior to biological testing — Leaching procedure BS EN 89-2015 Gas-Fired Storage Water Heaters for the Production of Domestic Hot Water BS EN 111-2003 BS EN 113-1-2020 Durability of wood and wood-based products - Test method against wood destroying basidiomycetes Part 1: Assessment of biocidal efficacy of wood preservatives