Once they start to degrade, they can actually self-ignite (chemical process). You can't stop the fire on them and can only hope to stop the fire in whatever is nearby. The best way to dispose of them is to burn them in a controlled way before they catch your house on fire.
Originally Posted by Tom1956
The same base was used for early motion pictures and there were several movie theater fires because of it (though, granted, the films were being lit by pretty hot lights for projection at the time).
Here's the best site I've found for how to test and store old negs - http://www.nedcc.org/free-resources/...nd-duplication In case anyone else comes across this thread while looking for info.
Last edited by winger; 07-01-2013 at 09:39 AM. Click to view previous post history.
Reason: added link