I.S. EN 1335-3:2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General test conditions
  4.1 Preliminary preparation
  4.2 Test equipment
  4.3 Application of forces
  4.4 Tolerances
  4.5 Sequence of testing
  4.6 Inspection and assessment of results
5 Test apparatus
  5.1 Test surface
  5.2 Stops
  5.3 Seat loading pad
  5.4 Smaller seat loading pad
  5.5 Local loading pad
  5.6 Back loading pad
  5.7 Arm rest durability test apparatus
  5.8 Strap
  5.9 Stability loading device
  5.10 Loading discs
  5.11 Test surface for castor durability (and rolling
       resistance of the unloaded chair)
6 Loading points
  6.1 Loading point "A"
  6.2 Loading point "B"
  6.3 Loading point "C"
  6.4 Loading point "D"
  6.5 Loading point "E"
  6.6 Loading point "F"
  6.7 Loading point "G"
  6.8 Loading point "H"
  6.9 Loading point "J"
7 Tests methods
  7.1 Stability
  7.2 Static load tests
  7.3 Durability tests
  7.4 Rolling resistance of the unloaded chair
8 Test report
Annex A (normative) - Seat loading pad data
Annex B (normative) - Stability loading device data
Annex C (informative) - Loads, masses and cycles for
        functional tests

Describes mechanical test methods for determining the stability, strength and durability of office work chairs.