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NA 134-04-03-06 UA
Measurement of soil gas and landfill gas
NA 134-04-01-03 UA -dormant
Measurement of SO3/NH3 (emissions)
NA 132-03-02 AA
Control and automation
NA 134-04-02-09 UA
Measurement of particles in ambient air
NA 134-04-04-14 UA
Measurement of inorganic fibrous particles
NA 134-04-02-01 UA
Measurement of organic compounds (immission) (VOC, PAH)
NA 134-04-01-10 UA
Measurement of metal and metalloid (E)
NA 134-04-01-06 UA
Measurement of aldehydes and phenols (emissions)
CEN/TC 237/WG 10
Thermal-mass flow-meter based gas meters
ISO/TC 146/SC 3/WG 22
Measurement of substances in ambient air from transportation sources