Hey Meighen. I've been trained to do semen analysis and this is what I was told to look for in a specimen...
Normal volume is 2-6mL. )The result probably means 3mL and not %). This is the volume of ejaculate.
Normal motility is greater than 60%. This the percent of the sperm that are moving forward (not just swimming in circles)
Normal morphology is at least 30%. This is the number of sperm present that look normal. Some sperm have two tails or heads, too short or long of tail, the head of the is sometimes shaped funny. These are not able to fertilize the egg. I know only 30% normal sounds so small but there are MILLIONS and 30% of 20 million is a lot!
The normal count is considered at least 20 million.
Sounds like your husband is good to go.
Here is a website that is helpful.