DIN EN 16913:2017-09
Действует
Ambient air - Standard method for measurement of NO<(Index)3><(hoch)->, SO<(Index)4><(hoch)2->, Cl<(hoch)->, NH<(Index)4><(hoch)+>, Na<(hoch)+>, K<(hoch)+>, Mg<(hoch)2+>, Ca<(hoch)2+> in PM2,5 as deposited on filters
— 51 стр.
