Well I don't really know how much more you want to know, other than what's been mentioned here, either through what I posted or what the links given by Kurt would provide.
AGFA made several different types of tape, just like any other tape manufacturer did/does... Ampex (later known as Quantegy) made 456, 467, 499,... AGFA made 468, 528, etc., the type(s) of which you would use would be defendant upon your particular tape machine's bias, level preferences, settings, etc.
You don't have a model number for the tape, so providing any more detail as to its specifics and suggested use is tough.
As long as your deck is biased and aligned, and as long as the tape is in good condition, isn't shedding, breaking or skewed, then there would be no reason to expect the tape to not give good results if you were to record audio to it...
The issues you would be more likely to face would be if you were playing back audio that had been recorded on another deck, where the biasing would have been different, or where noise reduction had been encoded during recording.
Not really much else to tell you...Put it on your machine, whack it with some audio with an RMS around -4db to 0db or so, try to hold to a peak of around +3/+4 db, play it back and see how it responds.
-d.