Historical
BS EN 1335-2:2009
Office furniture. Office work chair. Safety requirements (British Standard)
This part of EN 1335 specifies the mechanical safety requirements for office work chairs. The requirements are based upon use for 8 h a day by persons weighing up to 110 kg. For more severe conditions of use, increased requirements will be necessary. Annex A (normative) includes loads, masses and cycles for safety tests. Additional loads, masses and cycles for functional tests can be found in EN 1335-3:2009, Annex C.
British Standards Institution [bsi]