You are reading a single comment by @EdwardZ and its replies.
Click here to read the full conversation.
-
Could be a nanogram difference without more precision on the scale.>
That is why every WW needs a precision analytic lab balance.
with at least 0.1mg readability and repeatability-- 0.01mg are also widely available but probably overkill here. Getting them calibrated to a traceable standard (for example UKAS, NIST or DIN) is also a good idea.
EdwardZ
Could be a nanogram difference without more precision on the scale.