This analytical method is a validated measurement procedure for the determination of six semi‐volatile polycyclic aromatic hydrocarbons (PAHs) from the EPA list (US Environmental Protection Agency) such as benzo[ b ]fluoranthene, benzo[ k ]fluoranthene, benzo[ a ]pyrene, dibenzo[ a,h ]anthracene, benzo[ ghi ]perylene, indeno[1,2,3‐cd]pyrene and also benzo[ e ]pyren in workplace air averaged over the sampling period after personal or stationary sampling. Sampling is performed by drawing a defined volume of air through a PTFE filter, which is inserted in a GSP sampling system. The collected PAH components are extracted with a mixture of acetonitrile/methanol and analysed by means of high performance liquid chromatography (HPLC) with fluorescence detection. The quantitative determination of the PAHs is based on calibration functions obtained by means of multiple‐point calibrations. The limit of quantification for an individual PAH is in the range from 0.0012 to 0.0043 µg/m 3 . Joint Publication of the Analytical Subcommittee of the Chemistry Board of Experts of the Expert Committee Raw Materials and Chemical Industry of the German Social Accident Insurance and the working group “Air Analyses” of the Permanent Senate Commission of the Deutsche Forschungsgemeinschaft for the Investigation of Health Hazards of Chemical Compounds in the Work Area.

This analytical method is a validated measurement procedure for the determination of long‐chain phthalates such as diisononyl phthalate, di‐n‐decyl phthalate, diisodecyl phthalate, diundecyl phthalate and didodecyl phthalate present in the workplace air in the gaseous and particulate state. Sampling is performed by drawing a defined volume of air through a cellulose acetate filter located in the sampling head with an adsorption tube filled with silica gel connected downstream using a suitable pump. The flow rate is set to 1 L/min with a recommended air sample volume of 60 or 120 litres after 1 or 2 hours. The collected phthalates are desorbed with methanol and then analysed by means of liquid chromatography using a UV detector (HPLC‐UV). Quantitative determination is based on calibration functions obtained by means of multiple‐point calibrations using an internal standard. The limits of quantification (LOQs) for a phthalate are between 0.003 and 0.26 mg/m 3 for an air sample volume of 240 litres. The expanded uncertainty for these parameters is between 16 and 22%, depending on the phthalate and concentration. Joint Publication of the Analytical Subcommittee of the Chemistry Board of Experts of the Expert Committee Raw Materials and Chemical Industry of the German Social Accident Insurance and the Working Group “Air Monitoring Methods” of the Permanent Senate Commission of the DFG for the Investigation of Health Hazards of Chemical Compounds in the Work Area.

Published in the series Air Monitoring Methods , Vol. 11 (2009) The article contains sections titled: General principles Equipment, chemicals and solutions Equipment Chemicals Solutions Calibration standards Sample collection and preparation Operating conditions for HPLC Analytical determination Calibration Calculation of the analytical results Reliability of the method Precision Recovery Limit of quantification Shelf‐life Blank values of the sample carrier Discussion of the method .

Published in the series Analyses of Hazardous Substances in Air , Vol. 8 (2003) The article contains sections titled: General principles Equipment, chemicals and solutions Equipment Chemicals Solutions Calibration solutions Sample collection and preparation Operating conditions for high‐performance liquid chromatography Analytical determination Calibration Calculation of the analytical result Reliability of the method Precision Recoveries Limits of quantification Shelf‐life Blank values Standard chromatogram

This method permits the determination of formic acid, acetic acid and propionic acid in the workplace air in ac oncentration range from 0.1 to twice the currently valid limit value in air [1, 2].Sampling is performed by drawing ambient air through ag lass tube filled with silica gel using as uitable sampling pump. After sampling, the carboxylic acids loaded on the silica gel are extracted with sodium hydroxide. The carboxylic acids are separated by means of high performance liquid chromatography (HPLC) and detected by adiode array detector (DAD). In routine analysis the use of aUVdetector is sufficient. The quantitative determination is carried out on the basis of calibration functions. Characteristics of the methodPrecision: Formic acid Standard deviation (rel.): Expanded uncertainty: s =2.7 to 4.8% U =16.5 to 19.4% for ac oncentration range of 0.96 to 19 mg/m 3 and for n =6determinations Acetic acid Standard deviation (rel.): Expanded uncertainty: s =2.5 to 4.7% U =17.2 to 19.1% for ac oncentration range of 2.3 to 46 mg/m 3 and for n =6determinations 1