General Information:
In order to support our clients, we have created dedicated analysis packages for the characterization of water quality. Set 3 of analyses includes the following analyses: NTG 22*C, NTG 37*C, E. coli, Coliform bacteria, Enterococci, being generally useful for characterizing the microbiological parameters of drinking water.
The referential after which the analysis/ Principle of the method is executed:
The analysis for the determination of the turbidity to the drinking water is performed within its own laboratory according to the national and international standard in force according to the table below.
| SET 3 - MICROBIOLOGICAL ANALYSIS | ||||
No. | Name of the test | Referential | Min quantity of sample( ml ) | Execution time( working days ) |
| 1 | Determination of colony count at 37 *C. | SR EN ISO 6222/2004 | 50 | 6 |
| 2 | Determination of colony count at 22 *C. | SR EN ISO 6222/2004 | 50 | 6 |
| 3 | Determination of intestinal enterococci | SR EN ISO 7899-2:2002 | 200 | 6 |
| 4 | Determination of coliforms Membrane filtration method | SR EN ISO 9308 | 100 | 6 |
| 5 | Determination of Escherichia Coli | SR EN ISO 9308 | 100 | 6 |
Causes of sample rejection – quantity of inappropriate sample, sample collected in inappropriate containers (NON-STERILE CONTAINERS), samples not properly labeled, etc.
Harvesting container – STERILE container mandatory. (purchased commercially - human pharmacies or requested from the laboratory).
Note: Ask the laboratory for instructions to save water samples for microbiological analysis!
Quantity of sample necessary for the execution of the set 3 microbiological analyzes - minimum 500ml.
Sample stability – freshly harvested water is stable for 3 hours at a temperature of 2...50C.
bibliography:
- LAW 458/2002 with subsequent amendments to Law no. 311/2004, Government Ordinance no. 11/2010, Law no. 124/2010 and Government Ordinance no. 1/2011
