Gaseous emission measurement; measurement of nitrogen monoxide; infrared absorption units URAS, UNOR, BECKMAN model 315
€28.15
Emission control; zinc-galvanizing operation
€51.99
Maximum environmental quality values for air pollutants
Dosage du monoxyde de carbone dans l'air ambiant extérieur par absorption d'un rayonnement infrarouge
€25.00
Gaseous emission measurement; infrared spectrometric determination of dimethyl formamide.
Pollution atmosphérique - Mesure des "retombées" par la méthode des collecteurs de précipitation
Emission control for aluminia-production and aluminium reduction by electrolytic process
€83.76
Gaseous air pollution measurement; measurement of ammonia gas concentration; indophenol method
Gaseous emission measurement; determination of sulphur dioxide; titrimetric hydrogen peroxide method
Gaseous emission measurement; check of calibrated recording instruments for sulphur dioxide concentration measurement in waste gases of combustion plants
Pollution atmosphérique - Mesure des "retombées" par la méthode des "plaquettes de dépôt"
Gaseous emission measurement; determination of the total sum of nitrogen monoxide and nitrogen dioxide; phenoldisulfonic acid method
Gaseous emission measurement; determination of the total sum of nitrogen monoxide and nitrogen dioxide; acidimetric titration method
Gaseous air pollution measurement; measurement of chlorine concentration; methylorange method
Pollution atmosphérique. Gaz de combustion. Indice de noircissement par opacité d'un panaché de fumée (méthode de Ringelmann).
