Volume: should be 2-5mls Concentration: more than 20 million per ml Motility: more than 50% progressively motile Form: more than 30% normal appearance White blood cells: less than 1 million per ml
Most clinics suggest two samples several weeks apart as counts vary.
I assume he'll donate at the hospital. When my DH had to give, the local hospital provided a "wanky porn room" where he could go with the props (jazz mags and videos) were laid on. He found it a LOT easier than spanking off at home, then having to do a mercy dash across town in 20 mins max with the sample clamped between his legs to keep it at body temp and drop it off at the andrology lab.
sunburntats - what GorgonsGin said is correct about what they are looking for. She is also right about the 'mercy dash' part. Better to produce the sample at the hospital than at home IMO although I did both.
I wrote (as EvenBetaDad) about the whole varied experience of giving semen samples during IVF here on this thread.
If DH is worried or embarrased get him to have a read. It really is much worse in the mind that in actuality. Hope all works out well.