Experimental aspects of QCD studies at the LHC

The LHC will allow precision tests and measurements of QCD in as yet unexplored kinematic regions. The detailed understanding of QCD is important for almost all physics processes to be studied at LHC, as the production mechanisms are mostly controlled by QCD. The multi-purpose detectors (ATLAS and CMS) have been optimized for precision measurements within pseudorapidities of $|\eta|<2.5$ and have calorimetric coverage up to $|\eta|=5$. The expected performance will allow precise studies of final states containing electrons, photons, tau's (single hadrons), muons and jets. This contribution discusses various measurements of QCD processes at LHC, the kinematical reach and the expected statistical uncertainties for selected examples.