Which is used to calibrate a pH meter?

When completing the Final Inspection report the Inspector should write the report using:

You are the NACE Level 2 Inspector on a project where overcoating of galvanized steel is being performed.
The specification references SSPC SP 16 as the surface preparation method. At the pre-Job meeting operations personnel make it dear that abrasive blasting will not permitted. The Owner's representative asks you what other methods might be used. Of the options shown below, what would be the preferred option in this situation?

All of these ate advantages of using repair patches EXCEPT

When a coating is expected to be exposed to temperatures above 93C (200 F) the best choice would be: