Containers of flammable liquid

Inspection of tankers, carboys, cylinders etc. prior to filling Identification and labelling of materials driver instructions Use of earthing clips on portable containers of flammable liquids... 

A BLEVE involving a container of flammable liquid will be accompanied by a fireball if the BLEVE is fire-induced. The rapid vaporization and expansion following loss of containment results in a cloud of almost pure vapor and mist. After ignition, this cloud starts to bum at its surface, where mixing with air is possible. In the buoyancy stage, combustion propagates to the center of the cloud causing a massive fireball. 

Boiling liquid expanding vapour explosion follows failure of a pressurized container of flammable liquid, e.g. LPG. Ignition results in a fireball and missiles. 

This incendiary is very good for use against all kinds of wooden structures, including heavy beams and timbers. It also works well on paper, rags, straw, excelsior, and other tinder type materials. It will start fires in open containers of flammable liquids, piles of coal, coke, or lumber, and on baled rags and paper. It is not effective against metal. 

To minimise the hazard of premature ignition of flammable liquid vaporSi allow at least two feet of fuse length to extend from the top edge of an open container of flammable liquid before lighting the fuse. 

NOTE Label safety cans with contents and hazard warning information. Safety cans containing flammable or combustible liquid waste must have appropriate waste labels. Place 20-L (5-gallon) and smaller containers of flammable liquids that are not in safety cans into storage cabinets for flammable liquids. Do not vent these cabinets unless they also contain volatile toxics or odoriferous chemicals. 

Using storage cabinets to store containers of flammable liquids. 

One of the more disastrous problems that can occur with flammable liquids is a boiling liquid expanding vapor explosion (BLEVE). These are caused by rapid pressure buildup in closed containers of flammable liquids heated by an external source. The explosion occurs when the pressure buildup is sufficient to break the container walls. 

Containers of flammable liquids are sometimes stored in refrigerators or cold rooms. The assumption here is that since the temperature of the liquid is lowered, the vapor pressure of the liquid is correspondingly decreased. However, an inspection of the properties of some of the most highly flammable liquids in use in the laboratory (Table 16.4) reveals that their flash points are still well below storage temperatures in laboratory refiig-erators and freezers. Evaporation can still occur, albeit more slowly however, in the closed chamber an explosive mixture may be rapidly achieved. A spark from a door switch, light, mullion heater, defrost timer, compressor re-... 

Safety cans or other portable containers of flammable liquids, lights at barricades and at temporary obstructions, and danger signs. 

Flammable vapors are usually heavier than air so they naturally seek out and settle at the lowest possible level. This makes the detection of vapors more difficult. Vapors will move toward low points in the building. It s possible that a dock well could hold flammable vapors as a result of a spilled or punctured container of flammable liquids. 

In a maintenance department, safe storage of flammable liquids is essential. OSHA permits up to 60 gallons of Class I or Class II liquids and up to 120 gallons of Class III liquids to be stored in safety cabinets close to work stations. An inplant storage cabinet will provide a fire and heat resistant enclosure for containers of flammable liquids. The cabinets should be made of double-walled 18-gauge steel with 1 A inches of insulating air space, and they should include self-closing doors. 

---