The storage of solvents with flash points less than

2 The storage of solvents with flash point less than 55°C 

It is not possible within the confines of this text to describe the stipulations within each national regulation. However, the concepts described below provide a good illustration of typical requirements for the storage of flammable liquids in bulk, fixed tanks and in drums. 

1 The storage of flammable liquids in fixed tanks. The basic principles operating for the storage of flammable liquids are all related to the risk of fire or explosion and can be summarised as  

Following consideration of the guidelines highlighted above it is easy to understand the constraints operating on the design and location of storage tanks used for flammable liquids. 

All tanks must be supported on non-combustible stands with a fire resistance of at least 4h. All metal parts of the storage installation should be bonded together and earthed to avoid the build up of static charges which could cause sparks. The maximum allowable value of resistance to earth is 10 Q. The integrity of the earth must be tested on a regular basis. Weather protection may be appropriate and this can be achieved by the use of a dutch-barn type structure of lightweight non-combustible construction with at least two open sides. 

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