FOR THE ENUMERATION OF STAPHYLOCOCCUS

Sample pretreatment

Viable count in water or liquid foodstuff
Drop 1 ml of specimen (dilute if necessary) on the middle of the Compact Dry plate.

Viable count in solid foodstuff
Add buffer solution to the sample and homogenize by stomacher®. Drop 1 ml of specimen (dilute if necessary) in the middle of the dry sheet of the Compact Dry plate.

Viable count in swab test specimen
Use a premoistened swab, ideally with a sanitiser neutraliser to swab a 10×10 cm2 areas swabbing in multiple direction using diagonal and side to side strokes  to swab the entire 100cm2 area. We recommended our QuickSwabs or our NRSII NRS Swabs to maximise recovery.

Test instructions

• Open the cap and drop 1 ml of specimen in the middle of the Compact Dry plate.
• Specimen diffuses automatically and evenly into the sheet and transforms the dried sheet into a gel within seconds.
• Put the cap again on the plate and write the information needed on the memorandum section.
• Turn over the capped plate and put in the incubator.
• After incubation count the number of light blue/blue colonies. White paper placed under the plate helps to count the colonies.
   

Notes

• High bacteria concentrations on plates will cause the entire growth area to become red/pink. In this case dilute the sample.
• After use please follow the current disposal regulations.
• The growth area is 20 cm². The back of the plate has a grid carved of 1 cm x 1 cm to make the colony counting easier. In case of any difficulties to count colonies due to large number of colonies grown, total viable count can be obtained by multiplying 20 by an average number of colonies per grid counted from several grids.
• Compact Dry plates are produced at an ISO 9001 certified site

Ordering Details

Stock Code                 Description                                                                              Pack Size

HS1002960                   Compact Dry XSA (Staphylococcus aureus) 40 tests                   40

HS1002961                    Compact Dry XSA (Staphylococcus aureus) 240 tests                240

HS1402961                    Compact Dry XSA (Staphylococcus aureus) 500 tests                500

HS1502990                   Compact Dry XSA (Staphylococcus aureus) 1400 tests             1400