DIN EN ISO 16000-2:2006-06

General and substance-specific aspects of the measurement strategy to be taken into account before and during sampling as well as measurement procedures for individual substances or groups of substances in indoor air are described in the single parts of DIN EN ISO 16000. DIN EN ISO 16000-2 deals with the specific aspects of the measurement strategy to be taken into account for the determination of formaldehyde. Especially the requirements for ventilation, humidity, setting of the room temperature, sampling duration as well as screening tests are considered. Before an indoor air measurement can be carried out, its objective has to be defined clearly. The measurement is usually required because of one of the following objectives: a) to check compliance with the guideline value, b) to determine maximum concentrations, c) to check the efficiency of remediation, d) to determine the average concentration over a longer period of time. In the standard the corresponding procedures for sampling and the boundary conditions to be observed are described in detail.