Sample Containers, Preservations, and Hold Times
|
Analysis |
Matrix |
Container Type |
Minimum Sample Volume |
Preservation |
Maximum Holding Time |
|
Coliform, Total (Presence/Absence) |
Water |
Sterile Plastic |
125 mL |
Na2SO4 |
30 hours |
|
Coliform, Fecal (Presence/Absence) |
Water |
Sterile Plastic |
125 mL |
Na2SO4 |
30 hours |
|
E. coli Enumeration |
Water |
Sterile Plastic |
250 mL |
Na2SO4, Ice, < 10oC |
30 hours |
|
Nitrate |
Water |
Plastic |
250 mL |
Ice, < 10oC |
48 hours |