{"standard":"EN 771-4","listings":[{"edition":"EN 771-4:2011+A1:2015","list":"uk-construction-products","list_name":"UK Construction Products (designated)","jurisdiction":"UK","title":"Specification for masonry units — Part 4: Autoclaved aerated concrete masonry units","annex":"Regulation (EU) No 305/2011","pc_start":"0035/21","restriction":"","withdrawal":"","source":"https://www.gov.uk/government/publications/designated-standards-construction-products"}],"events":[],"generated":"2026-08-16 23:54 UTC"}