Product Information
The purpose of these tests is to evaluate the front and rear stability of chairs.
Weight: 600N increment
Specification
A 79 kg (173 lb.) weight shall be placed on the seat at the center of the unit or on the
seating position nearest to the center of the chair
A block, obstruction or other restraining device 13 mm (0.5 in.) in height shall be
affixed to the test platform. The device shall prevent sliding but not restrict the unit
from tipping. On chairs that rotate, the base and casters shall be positioned to offer
the least resistance to rearward tipping of the chair
Loader: diameter 200mm.
Seat height: 30 to 65cm, manual adjustment
Testing Standards
| ANSI/BIFMA X5.1-2011 12 | Stability Tests |
| BS EN 1335-3:2009 7.1.1 | Front edge overturning |
| BS EN 1335-3:2009 7.1.2 | Forwards overturning |
