1. Tracked Changes. Safety and control devices for gas burners and gas burning appliances. Pressure regulators for inlet pressures above 50 kPa up to and including 500 kPa Part 2, (5th June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (170 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗