The proficiency testing (PT) is offered alternatively with and without own sampling. Participants may choose whether they wish to perform sampling for aldehydes themselves, or to have the sample carriers supplied to them .
Three test gas mixtures with different individual substance concentrations are offered. A test gas mixture consists of three to four aldehydes. The following aldehydes are used: formaldehyde, acetaldehyde, propionaldehyde and butyraldehyde. The concentration for formaldehyde will lie in the range between 0.03 and 1 mg/m³, for acetaldehyde, propionaldehyde and butyraldehyde in the range between 0.1 and 3 mg/m³ each.
Analysis should be conducted by HPLC according to IFA Folder No. 6045  or DIN ISO 16000-3  respectively.
At the dynamic test gas stream at the IFA up to 25 participants can carry out parallel sampling.
Participants will receive detailed information on the PT scheme, a description of the apparatus, and the connections for the sampling devices in particular, in good time.
The production of samples for aldehydes is conducted at the dynamic test gas stream of the IFA.
The laboratories may choose from two different sample carriers:
Each participant receives a sample kit comprising:
 Ringversuch Aldehyde (Kennzahl 1630-5) In: IFA-Arbeitsmappe Messung von Gefahrstoffen. Lieferung: 02/2017
 Aldehyde (Kennzahl 6045). In: IFA-Arbeitsmappe Messung von Gefahrstoffen. Lieferung: 43/2009
 DIN ISO 16000-3: Indoor air - Part 3: Determination of formaldehyde and other carbonyl compounds in indoor air and test chamber air - Active sampling method (ISO 16000-3:2011). Beuth, Berlin 2013
Division 2: Chemical and biological hazards