Gas natural. Designación de la calidad (ISO 13686:1998).
Natural gas - Quality designation (ISO 13686:1998)
Gaz naturel - Désignation de la qualité (ISO 13686:1998)
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See part of the content of the standard
75.060 / Natural gas
CTN 60 - Gaseous fuels and gas and installations apparatus
EN ISO 13686:2005 (Identical)
ISO 13686:1998 (Identical)
It is cancelled by: UNE-EN ISO 13686:2014
