DIN 18448 [CURRENT] references following documents:

Document number Edition Title
VDI 4301 Blatt 7 2018-10 Measurement of indoor air pollution - Measurement of carboxylic acids More 
VDI 6202 Blatt 20 2017-11 Contaminated buildings and technical installations - Qualification of personnel More 
VDI 6202 Blatt 3 2021-09 Contaminated buildings and technical installations - Asbestos - Exploration and assessment More