Don,
I don't have any materials about this, but I have 20 years of knowledge as a systems engineer/installer.
When it comes to dusty environments, I look at it two ways.
First off being that if it is way to dusty for electronics and they are all rack mounted, I rack mount all of the hardware at the shop and make it plug and play for when they are ready. This does not slow anything up on anyone's end as well as makes for quicker turnover time due to everything working correctly.
Second thing being that items are to be permantly mounted in a non rack structure and some sort of finish around it all, be it trim, leather or vinyl etc. These get touchy as the products really need to be in the places they belong when it comes to trimming everything out, this makes for a great looking and totally functional installation.
In this case, we bring all of the items to be installed and put small plastic bags over the faces of all of the units. There is always an area on rack and non rack mounted items where you can use a little gaff tape to hold the plastic down. This still allows for a recess on the product, yet still covers all of the parts of the unit to keep the dirt and dust out.
I always bag up anything I can until the job is completely finished on the contractors side. This goes for lighting, speakers and every component that has to due with my install. In the 20 years I have been doing this, I have never had a problem with any products as a result from dirty or dusty facilites.
Doesn't hurt to use a little canned air as well once everything is in place and ready to go. Lubing up your faders is also something that I do everytime, these are easy to do and make things nice and smooth when it comes to test time.
Bobby