USA/1496
WTO/TBT
United States of America - 17 - Metrology and measurement, Physical phenomena
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.