211L, with standard oil drum size of 211L, diameter of 81CM and height of 121CM；; Oil drums are made of iron drums or plastic drums. Under normal circumstances, the service life of iron drums is as long as 1.5-21 years. When storing oil, be sure that the oil drum has its own suitable cover and is sealed well; Check oil drums regularly for corrosion, bulges, defects, dents and leaks.

according to the requirements of the code for fire protection design of buildings and other relevant codes; Articles that may cause explosion, burning, decomposition and deterioration after exposure to water and dust pollution are not allowed to be stored in the open air for a long time.

The specification for storage of petrol cans requires

1. The petrol cans should be sealed tightly and stored in a cool and ventilated place (to prevent volatile flammable and explosive mixed gases). When opening, be sure to pay attention to whether there is pressure inside and whether the cans are deformed (to prevent injuries caused by pressurized spraying).

2. The gasoline tank for storing gasoline should not be too full, and more than 5% of the volume should be reserved to allow gasoline molecules to occupy "room for movement" in the container, because the volume of gasoline will expand after being heated, forcing the container to "get fat" or even break.

3. The petrol tank must be sealed tightly. Do not use plastic products. It is dangerous to generate static electricity. Just put it in a cool place. It is best not to store too much gasoline. It will deteriorate after a long time. Keeping gasoline fresh is good for the engine.