Total Uncertainty of a Graduated Cylinder
I have a 2000ml graduated cylinder. It has a marked tolerance of +/- 6ml. The markings are every 20ml which should result in +/- 10ml uncertainty. To get the total uncertainty of a measurement taken with this tool, do I:
Add the uncertainties for a total of +/- 16ml?
Do a quadratic sum for a total of +/- 12ml?
Take the larger of the two for a total of +/- 10ml?
Use only the marked tolerance for a total of +/- 6ml?
Thanks!