Our ready-to-use contact plates can be used for environmental monitoring of surfaces in critical clean rooms and isolators (ICR series) as well as in non-critical areas (RT series). To minimize the risk of contamination, our contact plates are produced in clean rooms. They can be stored at room temperature and the ICRplus/RTplus versions are lockable and can be safely transported for incubation under aerobic, microaerophilic or anaerobic conditions.
Our contact plates contain either Tryptic Soy Agar (TSA), Sabouraud Dextrose Agar (SDA) or a non-animal, vegetable peptone media for minimal risk of BSE/TSE contamination. The plates are available supplemented with neutralizers of a wide range of disinfectants or β-lactam antibiotics for monitoring sanitized, dry surfaces. Neutralizers such as lecithin (L), Tween 80 (T), histidine (H) and sodium thiosulfate (Th/Thio) can inactivate residues of disinfectants, a wide range of which are used worldwide. Plates supplemented with cephalosporinase or penicillinase are used to inactivate a wide spectrum of β-lactam antibiotics.
Gamma-irradiated and triple bagged contact plates are suitable for use in critical cleanrooms, RABS and isolators. They can be used for surface and personnel monitoring, but also for active air monitoring with MAS® air samplers. We offer two versions in a non-lockable (ICR) and lockable (ICR plus) format. The ICR plus version is furthermore suitable for anaerobic monitoring.
The new TSA (Tryptic soy agar) media including the four neutralizers lecithin (L), Tween 80 (T), Histidine (H) and sodium Thiosulfate (Thio) provides additional unique features:
Our RT and RTplus contact plates are designed for microbial monitoring of dry surfaces such as floors, walls, textiles and working garments of personnel in controlled areas.
Formulations are available for determining total aerobic microbial count (Tryptic Soy Agar = Casein Soya Bean Digest Agar = TSA or Plate Count Agar= PCA), yeast and mold count and total count for specified microorganisms. When monitoring sanitized surfaces plates neutralizers such as lecithin (L), tween 80 (T); histidine (H) and sodium thiosulfate (Th/Thio) can inactivate a wide range of disinfectants.