In the years of the high turnout of continuous batch washers (CBW´s) (circa 1980 to 1990) was frequently observed that the expected cleaning results based on the set temperatures were not reached.

A good measuring of the temperature in the washing equipment was, certainly in CBW´s with an inner and outer drum, not possible. Initially there was tried to get an image of the (internal) temperature of on CBW by using temperature strips. Often was found that the set temperature was barely achieved, and in some types of CBW the with the temperature strips measured temperature was more then 20°C below the set value.

In previous months CCD visited several Dry Cleaners because of the Dutch AMVB laws. These visits will probably continue as long as PER is used. We noticed that currently several  enviromental services are checking the surrounding premisses of Dry Cleaners. When these measurements exceed the standard of 0,25 mg/m3 the machines will be shut down and sealed. This happened several times in the last weeks.