M
milagr
Am looking for Microbiological limits for hand swabs for coliforms/S. aureus.
Any information on the above is much appreciated.
Any information on the above is much appreciated.
Am looking for Microbiological limits for hand swabs for coliforms/S. aureus.
Any information on the above is much appreciated.
Am looking for Microbiological limits for hand swabs for coliforms/S. aureus.
Any information on the above is much appreciated.
Hi welcome to the cove.
The swab test is the most commonly used technique to determine microbial contamination on surfaces including workers hand, utensils, working bench and so on. The Maximum permissible limits of Total Plate count is 100 per Sq. Centimeter, Coliforms and staphylococcus aureus should be absent/cm2 . Normally, swab from worker’s hand and food contact surfaces Collection of Swabs: 25 sq.cm. area are swabbed using a square 5x5 cms. The swab is moved through a distance 12.5 cms during the swabbing operation. A steel template of correct size, which can be readily sterilized by alcohol flaming can be used to outline the swabbing area.
Regards
S.Subramaniam
I am not sure if anyone uses alcohol flaming - used to be the practise in my college days. Nowadays, it is sterilized by heat
In place of swabs, direct impression on agar plates is commonly employed.
many thanks for the standard while we say it is 100/sq cm; is there a reference book/paper that states the same. We use the Hi media plates for the swabs