Hi everyone, Is there a regulation or standard regarding storage limit of chemicals in fumehood cabinets. Would appreciate if you help me on this. Thanks Bobby

Jane is right in context that fume cupboards should not be used for storage of chemicals generally as its effectiveness is significantly reduced, depending upon the size and where in the FC is the storage done. It could be a different matter if you have spare FC's that are not used for normal FC work as you have ventilation, but even then you need to consider the compatibility/segregarion depending upon what is being stored. The Dangerous Substances and Explosive Atmospheres Regulations 2002 do not prescribe any limits, but the Approved Code of Practice for the regulations requires that:- Only the minimum amount of dangerous substances needed to carry out the work activity should be kept in process areas, workrooms, laboratories and similar working areas. Material that is not in use should be returned to the designated storage area. Small quantities of flammable liquids in closed containers can be stored within the workroom in a suitably placed cupboard or bin which is of fire-resisting structure and is designed to retain spills. Additionally the guidance to the regulations states that:- For flammable liquids that have a flashpoint above the maximum ambient temperature (normally taken as 32 °C), this small quantity that may be stored in the workroom is considered to be an amount up to 250 litres. For extremely and highly flammable liquids and those flammable liquids with a flashpoint below the maximum ambient temperature the small quantity is considered to be up to 50 litres More info at:- http://www.hse.gov.uk/fi.../storageflammliquids.htm You can procure both flammable container cabinets/cupboards --just google chemical storage cupboards.