Analysis | Technique | Sample Volume | Used environment | Incubation | Colonies |
Aerobic revivable microorganisms Total coliforms Thermo-tolerant (faecal) Coliforms Escherichia coli
| Incorporation
in solid media Filtration
Filtration
Filtration | 1 ml
100 ml
100 ml
100 ml | 23.5 g/L Plate Count Agar (PCA) 35.12 g/L Lactose agar-agar Tergitol with TTC 35.12 g/L Lactose agar-agar Tergitol with TTC 37.0 g/L Escherichia coli Broth + Agar 5% | 37˚C or 22˚C/24 or 48 hours
37˚C /24 hours
44.5˚C/24 hours
44.5˚C /24 hours | Whitish
Orange yellow
Orange yellow
Whitish |
Streptococci of Group D (Enterococci) Salmonella & | Filtration
Filtration | 100 ml
100 ml | 46.5 g/L Agar-agar Slanetz et Bartley 56.6 g/L Xylose | 37˚C /24 hours
37˚C /24 | Violet-rose
Red in the |
Shigella |
|
| Lysine Deoxycholate Agar—XLD | Hours | centre |