MEOClassOneAll oral topicsWritten study desk

MEO CLASS 1 · ORAL QUESTION 17

Q1- BDN shows Sulfur 0.49% and Lab test report shows S- 0.53 %. Action.

Answer

A –Acceptable

• Sulfur content + 0.59R, Max limit 0.53%S acceptable.

• Refer ISO 4259.

• To avoid ships being unjustly fined for marginal excess in sulfur content of the MARPOL-delivered sample

taken during bunkering, a 95% confidence interval has been given. This implies that a sulfur content of up to

0.53% may be accepted as compliant when testing the “in-use” and “on-board” samples.

Test repeatability is the ability of a lab to test the same material successively under identical conditions and

obtain results whose difference is within a standard acceptable range.

Test reproducibility is the ability of the lab to test the same material twice under different conditions and obtain results whose difference is within a standard acceptable range