To complement our range of Redipor® prepared culture media products, we have developed accessories to help transport and position settle and contact plates in optimum locations.
Table top and floor stand options available in the settle plate stands, and a carrier for up to 20 Petri dishes or contact plates.
We also provide surface sampling instrumentation and can create tailored solutions to meet specific criteria. Many of our products have been developed to solve specific issues for large pharmaceutical manufacturers.
In this animation Cherwell explains why desiccation and cracking can occur on plates, and why a deeper fill volume may help reduce the impact in your environmental monitoring environment.
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Settle plates are used to monitor the level of viable particles in the environment through a process of passive air sampling. A viable particle settles on agar plates at a rate dependent on its characteristics and the airflow in the environment.
EU GMP Guide Annex 1 has recommended that 90mm settle plates can be exposed in cleanroom environments for up to 4 hours. However, agar plates may dry out during long exposures where the rate of air exchange is high. So, it might be necessary to use deep filled settle plates, or replace the settle plate after a shorter time to ensure satisfactory growth promotion after exposure.
Typical requirements suggest 1,000 litres per air sample in high risk areas, such as: grade A filling lines, grade B clean rooms, operating theatres etc. As the criticality of the area reduces, the sample size can be reduced. The aim is to achieve a representative sample; so where higher counts would be expected, a smaller sample produces a more realistic number of cfu to count.
The majority of our prepared media can be stored in ambient conditions, not exceeding 25ºC. There are only a small number of very specialist products that require different storage conditions.
We have never specified refrigeration as a storage condition for our general media as this causes excess condensation and can result in very wet agar, rendering it impossible to use.
Yes. We have almost thirty years' experience with helping pharmaceutical and associated industries deliver environmental monitoring processes critical to the manufacture of heavily regulated products.
We supply every component you need to create environmental monitoring processes. We also offer bespoke formulations, accessories and even packaging solutions for organisations with very particular needs.
Get in touch today. Let's discuss your requirements.
Selective growth media contain components that will inhibit the growth of some types of microorganisms, while supporting the growth of others.
General purpose media, such as Tryptone Soya Agar, are used to produce total counts. While selective media, such as XLD for Salmonella species, are used to test presence/absence of specific types of microorganism.
our Redipor® media products are batch tested, QC certified and delivered when you need them
We provide additional equipment or services to make your environmental monitoring more effective
We build long-standing client relationships on understanding, commitment and trust
Everything you need to know about the different kinds of prepared media and their industrial applications.
Learn now to produce, purchase, store and use your prepared media effectively with confidence of reliable results every time.
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