The purpose of this standard is to establish the minimum requirements to be considered in the design and implementation of interior connections in natural gas receiving facilities for industrial and/or collective or commercial uses in order to obtain an appropriate form of exploitation and safety levels. suitable. The concept of internal connection includes the set of pipes and accessories included between the general connection key of the Supply Company, excluding this, and the existing sectioning valve at the entrance of the Regulation and Measurement Station (ERM), included this last.