Properly reading a battery hydrometer
I remember from chemistry that you always read volume in a graduated cylinder at the bottom of the meniscus. But what about the hydrometer? Just got to thinking about it today when I was checking the ...
Forum Discussion
CJW8 wrote:
In this case read the bottom of the meniscus. The top of the meniscus is just surface tension of the glass and the liquid and is to be ignored.
That's exactly what I was wondering. It is more natural to look at the meniscus from above, but if you position your eyes so you are looking up at the meniscus from below, the reading is at least 5 or more points higher then when looking from above.
