u/Hellboy5562

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:

  1. Add the uncertainties for a total of +/- 16ml?

  2. Do a quadratic sum for a total of +/- 12ml?

  3. Take the larger of the two for a total of +/- 10ml?

  4. Use only the marked tolerance for a total of +/- 6ml?

Thanks!

reddit.com
u/Hellboy5562 — 1 day ago

Total Uncertainty of a Graduated Cylinder

I have a 2000ml graduated cylinder. It has a marked accuracy 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:

  1. Add the uncertainties for a total of +/- 16ml?

  2. Do a quadratic sum for a total of +/- 12ml?

  3. Take the larger of the two for a total of +/- 10ml?

  4. Use only the marked accuracy for a total of +/- 6ml?

Thanks!

reddit.com
u/Hellboy5562 — 1 day ago