For an upcoming conference, I'm supposed to bring copies of my own materials. One sentence contains a phrase that I'm a little unsure how to understand. First the Japanese sentence in its entirety:
I believe I understand the conditional part and most of the rest. I understand it to say "if you have any materials to distribute to the participants, please bring then on the day [of the conference]."
Where I'm confused is the 90部.
My first instinct was to understand 90部 the name of an office or room at that university. But nothing else is named in that way in the document.
My second guess is that it is saying I should bring 90 copies of the materials.
What does it mean in this context?