Hospital acquired infection incidence is growing worldwide and textiles with antimicrobial treatments as a preventive measure are becoming common place. Currently tests are performed in wet conditions as encountered in wound dressings but not at 25C and 50%RH where clothing is worn. An interdisciplinary approach has modified test procedures to compare the antibacterial efficacies of textiles at these new conditions. Results demonstrated that certain fabrics with high efficacy claims fail the modified test method. IBRG membership is helping develop a new standard method for this type of fabric for the healthcare sector to enhance quality of life.