| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: method comprises the following steps: selecting a substrate, weighing said substrate to find initial mass, preparing a mixture containing a measured amount of water and the analysed composition, immersing the substrate in the mixture, removing the substrate and draining excess mixture from the substrate, drying and weighing the substrate to obtain final mass, comparing the initial and final mass to determine the mass of residue stuck to the substrate. ^ EFFECT: determining how a composition will deposit on sanitary ware such as shower cabins, bath-tubs and wash basins. ^ 8 cl, 2 tbl, 1 ex |
