| 1 |
Collect sample in
clean container from effluent composite sampler. |
|
| 2 |
Bring sample back to lab. |
|
| 3 |
Pour sample into (2) whil-pal
sterilized water sampling bags containing sodium
thiosulfate to 100 ml. mark. |
|
| 4 |
Let sample sit until tablet in
bag is dissolved. Check sample for 0.00 chlorine
residual on DR 2000. |
|
| 5 |
Pour (1) sample in sterile
Gelman microfunnel to 25 ml. mark and turn on
vacuum pressure pump for filtering. |
|
| 6 |
Pour 25 ml. sterile phosphate
solution into tunnel and filter. |
|
| 7 |
Turn off vacuum pump. |
|