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Verification of reference materials

Verification of reference materials, Total:12 items.

The international standard classification for "Verification of reference materials" includes: Natural gas .

The Chinese standard classification for "Verification of reference materials" includes: Natural gas .


General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

  • GB/T 31253-2014 Natural gas―Validation for gaseous reference materials―Direct measurement of calorific value and density

Danish Standards Foundation

Korean Agency for Technology and Standards (KATS)

Spanish Association for Standardization (UNE)

European Committee for Standardization (CEN)

British Standards Institution (BSI)

Standards Norway

  • SN-CEN ISO/TR 24094:2007 Analysis of natural gas — Validation methods for gaseous reference materials (ISO/TR 24094:2006)