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NA 134-04-02-18 UA
Measurement of particles in ambient air - Determination of the particle number concentration
ISO/TC 24/SC 4/WG 16
Characterisation of particle dispersion in liquids
ISO/TC 24/SC 4/WG 9
Single particle light interaction methods
ISO/TC 146/SC 2/WG 1
Particle size-selective sampling and analysis
NA 005-11-42 AA
Particle measurement (national mirror committee for ISO/TC 24/SC 4)
ISO/TC 209/WG 12
Cleaning of surfaces to achieve defined levels of cleanliness in terms of particle and chemical classifications
NA 005-11-43 AA
Particle characterization, porosity and pore size distribution (national mirror committee for ISO/TC 24/SC 4/WG 3)
ISO/TC 269/SC 2/WG 12
Particles emission measurement method
NA 134-03-04-02 UA
Impact of particles on technical products
NA 134-04-02-09 UA
Measurement of particles in ambient air