Not sure if it's the camera angle, but bottom of meniscus should be at 5 mL line.
@gaschalk1
8 жыл бұрын
If I remember my procedures correctly you contaminated your water sample by using rinsing your pipet in the water sample and you did not rinse the test tube first with the test sample or distilled water. Thus you could have contaminated the sample under test with what was last in the test tube. Other than that very interesting. thanks
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