Sparky,
I've had the fight over SO type cable (with a mining designator) by golly the contractor won, that stuff is nearly indestructible, check the spec from the company, it is usable.

Smurf,
Yup, been there too. At the airports, manholes full of Glycol (deicer) Jet A (kerosene) water, and every other abomination known to man, Tray cable works REAL well. Must use proper splicing techniques such as the pourable epoxy types.

Don't forget MI cable, that stuff is truly indestructable. Used it in lots of hazardous, wet, corrosive situations, it has never failed me.