| Assortment of services | 1 - very bad | 2 - bad | 3 - average | 4 - good | 5 - very good |
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| Professional attitude of employees | 1 - very bad | 2 - bad | 3 - average | 4 - good | 5 - very good |
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| Transparency of data on the test report | 1 - very bad | 2 - bad | 3 - average | 4 - good | 5 - very good |
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| Transparency of data on the test report | 1 - very bad | 2 - bad | 3 - average | 4 - good | 5 - very good |
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| Obtaining the necessary information | 1 - very bad | 2 - bad | 3 - average | 4 - good | 5 - very good |