qualitysystemsin use.An integratedprotocolshould recognise the typeof
information provided by, or the weakness associated with, one test and use
anotherto complementit. This approach has beenpreviously recommended and
incorporates corrective actions(Griffithet al., 1997).
The startingpointfor any protocol should be visualassessment. This is quick
and cheap± if a surfaceis visuallydirtythenthere is likely to be littlepointin
any furthertesting,additionalnotes shouldbe madeof visualmoistureand
surfacecondition/wear.However, in isolation, visual assessmentis not a good
Fig. 36.8 Stagesin an integratedcleaningmonitoringprogramme± microbiological
facilitiesavailable.
Improvingsurfacesamplingand detection of contamination 609