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Four dynamic PM measurement instruments (EEPS3090, DMS500, DMM230, AVL483) are studied in terms of their usability for diesel exhaust measurements under transient and steady state conditions. Measurements for various engine and exhaust aftertreatment strategies as well as on a Combustion Aerosol Standard (CAST) were conducted. The utilized sampling concepts comprised pre-DPF, tailpipe and CVS tunnel measurements. All results obtained from the two particle size spectrometers (EEPS3090 and DMS500) were compared to corresponding SMPS and CPC values, while the PM mass measurement instruments (DMM230 and AVL483) were compared to filter data. In addition, PM mass was estimated from the transient particle size spectra of EEPS3090 and DMS500, assuming different particle density functions, and was also compared to the corresponding filter data. All instruments were suitable to resolve fast changes in PM emissions.