BS 669-1:2022 PDF
This part of BS 669 specifies requirements for strip-wound flexible hoses, and end fittings and sockets for use with domestic appliances (including cookers). It applies to hoses designed for use with 1st and 2nd family gases at a nominal inlet pressure not exceeding 20 mbar1) or for 1st, 2nd and 3rd family gases at a nominal inlet pressure not exceeding 50 mbar.