Hello, we perform agar controls for TPC on our operator workspace. This means that we take imprints of the machines our operators handle (during the break, after mid-production cleaning) and during production we take imprints of the hands and gloves of our operators. The goal is to evaluate their hygienic working conditions and to correct them when needed.
This procedure was writing long before I was with the company, so I don't have all the rationals for this procedure. I was the first one to take the time and analyse all the scores we have given the past year. I was suprised by how often a low score was given.
Each agar plate is counted and given a score.
After that the average score of our agar plates is determined and an end-score is giving.
However, I feel that the end-score is disproportionately negative and that it is almost impossible to get a good score.
Evaluation for each agar plate:
hygicult
8,5 cm2 Score Interpretation
0 t/m 3 0 Excellent
4 t/m 13 1 Good
14 t/m 41 2 Mediocre
41 t/m 130 3 Insufficiënt
131 or more 4 Bad
Evaluation average scores:
Score Beoordeling
0 Excellent
0,1 -0,5 Good
0,6 – 1,5 Mediocre
1,5 and higher Bad
Example
Agar 1 - Excellent - Score 0
Agar 2 - Good - Score 1
Agar 3 - Mediocre - Score 2
Agar 4 - Excellent - Score 0
Agar 5 - Good - Score 1
Total score = 4
Average score = 4/5 = 0,8 = Mediocre. I feel as this score is unfairly low.
Do any of you use a similar procedure? Does any of you have any feedback on our interpretation?
Edited by Simon, 21 September 2020 - 12:23 PM.