The 40/4 chair was developed with severe contract use in mind and conforms therefore to ISO 7173:1989, level 5 for strength and durability as well as BS 4875:1985, part 2 and ISO 7174-1 (stability).
Please view or download the tests (pdf):
Strength ISO 
Strength FIRA BS ISO-1 
Strength FIRA BS ISO-2 
Fire test foam, BS, seat 
Fire test foam BS, back 
Fire test Main Line Plus Fabric BS 
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