2016DIN EN 1776:2016-05 Gas infrastructure - Gas measuring systems - Functional requirements; German version EN 1776:2015 / Note: This standard is part of the DVGW body of rules.
2016DIN EN 1776:2016 Gas infrastructure - Gas measuring systems - Functional requirements; German version EN 1776:2015
1999DIN EN 1776:1999 Gas supply systems - Natural gas measuring stations - Functional requirements; German version EN 1776:1998