New diverse microbiocides based on immobilized or slowly released disinfectant moieties held on/in solid substrate supports are being developed for drinking water disinfection. Various polymeric matrices, glass surfaces, glass and textile fibers, cellulose and other solid supports have been tried as substrates. The paper describes a testing procedure used to measure bacterial batch and column inactivation kinetics and total disinfecting capacities for several solid-phase disinfectant compositions. The dependence of observed efficacy on flow rates has also been studied. Results obtained with representative nonclassical chemical disinfectants (NCCD) under standardized test conditions are presented and potential advantages and disadvantages of the application of such materials are briefly discussed.