But IOS doesn't have the same ring to it.
The corporation I work for are ISO compliant for medical devices and most likely for their other branches of business. The hoops we have to jump through are many to maintain this. Actually, this month I have to go through a series of mandatory recertifications. Whenever we discuss these matters, the vast majority refer to it as the EYE-ESS-OH compliance. But here's the rub, our medical equipment, at least the modalities I deal with, have an ISOCENTER. The isocenter is the base point where all the pieces of equipment are referenced within the exam room... floor to ceiling. All ceiling rails, table core, pull boxes, floor trenches, etc. are dimensioned from this isocenter. However, when we refer to the isocenter verbally, it is pronunced EYE-SEW. Go figure.