Oily rags can combust in as little as a few hours, but it can take up to 24 hours or more depending on the amount of oil and the conditions they are in.
These oily rags are subject to spontaneous combustion.
They might explode!
an OSHA approved HAZ MAT container
There should be a special bin set aside for the disposal of oily rags. Do not throw the oily rag into the water. What to do should be stated on a noticeboard of rules and regulations.
In Cockney Rhyming Slang, the slang for cigarette or fag is oily rag, "Got any oily rags mate, I'm gaspin"
You clean it with on of the umpires rags that are in his pocket, or just get get a new one
You store them in a sealed container to prevent them from igniting. The oil and the air create a chemical reaction which creates heat, so after the oxygen is spent in the closed container, the process cannot be completed, therefore no fire.
The colonists didn't have a lot of choices when it came to cleaning. They used brooms, clean rags, water, and homemade soap.
a cotton swab or 100% cotton rags
Probably handkerchiefs or even clean rags.
Many different types of oils are prone to spontaneous combustion. Limiting the airflow will limit the reaction. That's the short answer. If you are using rags soaked with materials prone to spontaneous combustion, such as linseed oil, varnishes, stains, etc..; you should store them in tightly closed containers or waterfilled containers.