Standards
[CURRENT]
NF P45-204-6
; NF DTU 61.1 P6:2006-08-01
NF P45-204-6
; NF DTU 61.1 P6:2006-08-01
Building work - Gas installations in domestic premises - Part 6 : contract bill of special clauses.
Title (German)
Bauarbeiten - Gasinstallationen in Wohnräumen - Teil 6 : Sondervorschriften.