Specially soiled material is washed in a household washing machine. Colour measurements are taken before and after the wash cycle so the percentage of soil removal can be calculated. A variety of laundry products can be tested including laundry liquid and powders, laundry soakers, in wash boosters, bleach products and more.

Hard surface cleaners can include bathroom, multi-purpose, floor, window and kitchen cleaners. Here we soil tiles with a specific soil, depending on the product being tested, and scrub the tiles in a specialised scrubbing apparatus that uniformly cleans the tiles without operator bias. Again the colour reading before and after cleaning is used to calculate the percentage of soil removed.

This is similar to the laundry evaluations except soiled tiles are used in a household dishwasher. The colour measurements allow for soil removal calculations.

This method involves washing plates that have been soiled with a specific blend of fats and oils. The number of plates washed before the foam dies off is an indication of the products performance.

A number of attributes are analysed with fabric softeners. Softness is measured using a panel to compare the softness of towels washed in each product. The water absorbency and drying time is also measured on cloth washed in the product.