Round Shape Laboratory Plastic Petri Dish 90mm Sterile with BD medium

It can achieve the desired goal and can react to the surface microbial situation in the clean area more realistically. The contact plate method significantly reduces the introduction of uncertainty factors, making the results true and reliable, more accurate; the use of the contact plate method is also in line with domestic and international development trends; with more realistic and reliable data, it can make our QA monitoring level Greatly improved; it can also promote the improvement of workshop hygiene management, so that the quality of our products can be better guaranteed and the potential risks can be reduced.

However, in the process of implementation, several problems have been encountered:

1. Sampling point: A more scientific and reasonable sampling point is needed to make the result more representative. The sampling deviation (sampling position, sampling time) between QA is all we need to continue to improve.

2. Cleaning problem after sampling: It is initially determined to be wiped with alcohol and then wiped with water for injection. Among the sampling points now set, it is difficult to clean the 100-level laminar flow hood, mask and chest. We are also actively looking for a more suitable medium to achieve as little residue as possible.

3. The medium is fragile: this requires us to make a bump when it comes into contact with the dish, that is, stop and not overflow. Care should be taken during the sampling process to prevent damage to the surface of the medium.

In short, in the future work, we will continue to improve the contact disc method to minimize the potential risks caused by the introduction of new methods. Our future improvement goals are: setting up scientific sampling points, perfecting cleaning methods, and establishing corresponding supporting documents.

Inspection result editing

Surface contact disc description: 56.6mm inner diameter contact disc (contact disc): used for the determination of surface microorganisms in equipment, workshops, personnel, packaging materials, etc. Instead of a cotton swab, reduce the sampling steps to ensure the accuracy and safety of the sampling. The effective surface area of ​​the medium is 25 cm2, which meets the sampling requirements specified in the new GMP standard.

Surface contact disc description: 56.6mm inner diameter contact disc (contact disc): used for the determination of surface microorganisms in equipment, workshops, personnel, packaging materials, etc. Instead of a cotton swab, reduce the sampling steps to ensure the accuracy and safety of the sampling. The effective surface area of ​​the medium is 25 cm2, which meets the sampling requirements specified in the new GMP standard.