What does PTOB stand for?
PTOB stands for "Proficiency Testing Oversight Body"
How to abbreviate "Proficiency Testing Oversight Body"?
"Proficiency Testing Oversight Body" can be abbreviated as PTOB
What is the meaning of PTOB abbreviation?
The meaning of PTOB abbreviation is "Proficiency Testing Oversight Body"
What does PTOB mean?
PTOB as abbreviation means "Proficiency Testing Oversight Body"
