Applicable legislation:  R.D. 61/2006, al R.D. 1027/2006 y  al R.D. 1088/2010

The referenced standards always correspond to the last published version

NATURAL GAS
 DETERMINATION OF: TEST METHOD
 Relative density (C.N.)   UNE-EN ISO 6976
 Density (C.N.)
 Gross calorific value (C.N.)
 Net calorific value (C.N.)
 Wobbe Index
 Compressibility factor
Composition:  UNE-EN ISO 6974-4
 CH4
 C2
 C3
 i-C4
 n-C4
 i-C5
 n-C5
 C6+
 N2
 CO2
 THT (Odoriferous)  UNE-EN ISO 19739