Keeping food fresh

I'm looking for information about how long stuff can stay out of the fridge without spoiling.

Does anyone know a better source than this? http://www.fsis.usda.gov/Fact_Sheets/Keeping_Food_Safe_During_an_Emergency/index.asp

I don't agree that eggs that have been out of the fridge (>40degrees F or 4degrees C) for more than 2 hours should be discarded, but do people have anything better as a guideline?

More about food preservation

More milk info now that I'm home.  At Festival, Abbotsford have kept milk unrefrigerated for up to 3 days.  BUT, that's with reasonably cool nights. 

I'm interested in the office situation because of an office energy audit I'm doing.  The office has a whiz bang coffee machine, with a tube* dropped onto the milk which pumps throuh the coffee machine to make warm milk for coffee.  At one office, they had a fridge <a href="http://www.waeco.com.au/products3.asp?id=166&catId=45&subCatId=46&subCatId2=48">like this one</a>, with a hole drilled in the side for the milk tube to go through.  That fridge, if it's used all the time, costs them between $300- $800 a year!!!

Another office has a coffee machine with a milk tube which goes to a thermos of milk.  It looks like an accessory supplied with the coffee machine.  It obviously, doesn't cost them anything.

At an old workplace, our coffee machine just had the carton of milk on the bench with the tube running into it.  We went through at least 3 litres of milk a day, so each carton was only out for less than 3 hours.

Once upon a time milk cartons had a table on the side, with how long the milk would last for each 5 degree step of temperature between 4degrees C and 35degrees C.  That's the info I'd really like.  Not because I intend to tell my clients to leave their milk on the bench, but because I'm interested.


*To be honest, I suspect the tube is way more risky than leaving the milk on the bench.