NA 152
DIN Standards Committee Technical Fundamentals
Technical rule
[CURRENT]
VDI 2452 Blatt 3
VDI 2452 Blatt 3
Gaseous air pollution measurement; measurement of fluoride ion concentration; sorption method with prepared silver balls and heated membrane filter
Title (German)
Messen gasförmiger Immissionen; Messen der Fluoridionen-Konzentration; Silberkugel-Sorptionsverfahren mit beheiztem Membranfilter