microorganismlevelsin foodprocessingenvironments. CampdenR&DReportNo.
12 from Campden & Chorleywood Food Research Association, Chipping
Campden,UK.
HOLAH, J., MIDDLETON,K.E.andSMITH, D.L.(2004)Cleaningissuesin dry production
environments. ConfidentialR&DReportNo. 192 fromCampden& Chorleywood
FoodResearchAssociation,ChippingCampden,UK.
MITCHELL,J.P. (1995) Particle sizeanalysers: Practical procedures and laboratory
techniques.In Cox,C.S.,Wathes,C.M.(Eds.)BioaerosolsHandbook. CRCPress
Inc.,BocaRaton,Florida,pp. 177±246.
MO»LLER,A^ .L.(1999)Internationalstandardsfor the designof cleanrooms.In Whyte,W.
(Ed.)CleanroomDesign. JohnWiley& Sons,Chichester,UK,pp. 21±50.
102 Handbookof hygiene controlin the foodindustry