UNE-CEN/TR 13737-2:2014 Gas infrastructure - Implementation Guide for Functional Standards prepared by CEN/TC 234 - Part 2: National Pages related to CEN/TC 234 standards (Endorsed by AENOR in November of 2015.)
2015UNE-CEN/TR 13737-2:2014 Gas infrastructure - Implementation Guide for Functional Standards prepared by CEN/TC 234 - Part 2: National Pages related to CEN/TC 234 standards (Endorsed by AENOR in November of 2015.)