![]() |
|
#1
|
|||||
|
|||||
![]() Don’t test near actinic lighting for that reason.
Always shake the regents before using and rinse out the vials with tank water. This is why I bought a Hanna PO2 photometer. Guessing which shade of blue is way too inaccurate. Seeing the real numbers was scary RC
__________________
Randall |
#2
|
|||||
|
|||||
![]() SOmething I never thought of before...good to keep in mind.
|