EN 1335

EN 1335-1:2000 Office furniture – Office work chair – Part 1: Dimensions – Determination of dimensions
It specifies dimensions of three types of chairs as well as test methods for their determination.

EN 1335-2:2018 Office furniture – Office work chair – Part 2: Safety requirements
This document specifies safety, strength and durability requirements for office work chairs. It does not apply to other seating in the office area for which other European Standards exist. The requirements are based upon use for 8 h a day by persons weighing up to 110 kg. Annex A (informative) contains loads, masses and cycles for functional tests.

Office work chairs can be assessed according to these standards.

Types of furniture testing