Code of Veterinary Practice For Poultry Processing Plant
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3.2.3.2 The sampling methods used could be:
a) Suction of a known volume of air through a suitable  lter, buffer solution or nutrient broth.
b) Exposure of air plates for a certain period of time.
The objective of both methods is to determine the number of organisms in the  lter, buffer solution or nutrient broth or on the plates. The sampling time for all methods of collection is usually standardized at 15, 30 and 60 minutes, the duration being determined by experience or estimation. Samples may be taken monthly to detect speci c micro-organisms unless more frequent sampling is necessitated by emergency conditions or suspected contamination.
3.2.4 Water and aqueous solutions other than those added to the product.
3.2.4.1 Sampling of water and aqueous solutions should be carried out while the material is in motion and care shall be exercised to ensure that the samples are representative of the homogeneous mixture.
3.2.4.2 All cleaning solutions should be tested before use in order either to con rm that the concentration is correct to calculate any adjustments needed to obtain this concentration.
Routine monitoring of the amount of detergent which is necessary for cleaning will indicate any abnormal demand which could be the result of heavy deposits on the plant surfaces.
3.2.5 Products
3.2.5.1 One method of assessing the hygienic state of a poultry processing plant is to check the bacteriological condition of the product.
3.2.5.2 Bacterial Count on Surface of Raw Poultry Parts.
a) Obtain tare weight of sterile plastic sampling bag (about 0.05mm thickness).