Products for Cleaning validation

Purpose of sampling

Sampling of surfaces for the detection of microorganisms aims to:

  • estimate the possibility and the extent of surface contamination
  • evaluate the effectiveness of surface cleaning and disinfection procedures
Surface sampling is carried out using specific devices and is followed by microbiological analysis of the collected sample.
 

Devices for surface sampling

For surface sampling, a range of devices can be used:

 

The choice of the device depends on various factors, for example:

 

Size of the surface under examination

  • swabs are suitable for small (≤ 100 cm²) smooth surfaces or hard-to-reach points
  • sponges and cloths are suitable for large surfaces (> 100 cm²), smooth or uneven, hard-to-reach points, and carcas
 

Type of surface

  • for carcass sampling, sponges or cloths with BPW or MRD are used
  • for sampling disinfected surfaces, swabs or sponges with neutralizing solutions are used

 

Type of environment

  • for sampling surfaces in cleanrooms, swabs or plates with culture medium are used, in triple packaging
  • for environmental sampling in farms, Boot Swabs are used, overshoes for Salmonella sampling
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