USA/1496
WTO/TBT
US Etats-Unis d'Amérique
  • 17 - Métrologie et mesurage, Phénomènes physiques
2019-07-16
2019-06-20

Hydrogen gas measuring devices; Measurement of volume, mass, density, viscosity (ICS 17.060)

Hydrogen Gas Measuring Devices (4 page(s), in English)

Amends rules to keep certain accuracy classes. Removes other accuracy classes. Adopts the national standard accuracy class.