Lock assemblies in which the operating mode can be switched between the normal BS 8621 operating mode and a secure mode in which no egress is possible.
NORMA vydána dne 8.6.2017
Designation standards: BS 10621:2017
Note: NEPLATNÁ
Publication date standards: 8.6.2017
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard