Стр. 46 - ГОСТ ИСО 14644
U
U descriptor
2.136
ultrafine particle
2.137
unidirectional airflow
2.138
uniformity of airflow
2.139
V
validation
2.140
verification
2.141
viable particle
2.142
viable unit
2.143
virtual impactor
2.144
VU
2.143
W
witness plate
2.145
Z