NA 134
VDI/DIN-Commission on Air Pollution Prevention (KRdL) - Standards Committee
Technical rule
[CURRENT]
VDI 4220 Blatt 1
VDI 4220 Blatt 1
Quality assurance - Requirements on bodies for the determination of air pollutants at stationary sources and in ambient air - General requirements
Title (German)
Qualitätssicherung - Anforderungen an Stellen für die Ermittlung luftverunreinigender Stoffe an stationären Quellen und in der Außenluft - Allgemeine Anforderungen