BFL13 wrote:
Just to clarify, please confirm the temps you gave, eg 60, are electrolyte temps after cooling?
I know after an E the electrolyte temp is higher and so is the fluid level. After it cools you get a higher SG with the fluid lower (more dense so bobber floats higher so more into the green)
Have to be careful the + change in SG is from being more acidic or from being colder.
Confirmed
I generally rest them overnight and read the next day. Definitely 6 hours, minimum.
And temps are taken with the caps off and an infrared thermometer's outer edges touching the outer ring of the holes. So as close as one could physically get to the substance being measured.
That said... I would think... so long as you're getting an accurate temp reading, it shouldn't matter how soon after the E you take the sample. Unless, of course, you let the sample sit in your vile and come to room temp if different than battery temp. This is a reason to rest the batteries in the garage so that there is little difference between battery and room temp. But we're getting a little nitpicky, I think. Just dip and read. If you don't lollygag, you should be fine.
But I always ASSumed that the fizz still in the solution from a fresh E could cause the bobber to maybe float lower. That's the primary reason I let them rest before sampling.
