The samples were constituted by enamelled surfaces 21 x 47.5cm, which had previously been exposed to the contaminant challenge, the test microorganism Serratia marcescens ATCC 14756 10 CFU/mL with 10% of human saliva added.
Las muestras fueron constituidas de superficies esmaltadas 21 x 47,5 cm, previamente expuestas al contaminante desafío, el microorganismo de prueba la Serratia marcescens ATCC 14756 10 UFC/mL aumentado con 10% de saliva humana.
As amostras foram constituídas por superfícies esmaltadas 21 x 47,5cm, previamente expostas ao contaminante desafio, o microrganismo-teste Serratia marcescens ATCC 14756 10 UFC/mL acrescido de 10% de saliva humana.