BS ISO 16840-6:2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Apparatus for characterizing and ageing cushions
6 Test environment
7 Preparation and setup of cushion
8 Selection and order of testing
9 Envelopment
10 Column buckling
11 Heat and humidity
12 Heated indenter compression set
13 Impact damping under normal conditions
14 Interface pressure measurement test
   (pressure mapping)
15 Lateral stiffness
16 Leak
17 Loaded contour depth and overload deflection
18 Hysteresis test
19 Sliding resistance
20 10% force deflection
21 Stage 2: Simulated age testing
21 Stage 2: Simulated age testing
22 Accelerated aging
23 Bacterial soiling
24 Cold exposure
25 Cyclic loading at elevated temperature
26 Disinfection
27 Faecal soiling with cyclic loading
28 Heat and humidity
29 Laundering
30 Urinary soiling with cyclic loading
31 UV and ozone exposure
32 Stage 3: Post-aged cushion testing
33 Method of calculations
34 Test report
Annex A (informative) - Influences that drive changes
        in seat cushion performance
Bibliography

Describes apparatus, test methods, and disclosure requirements for generating aging effects in a seat cushion that reproduce those seen in use.

This part of ISO16840 specifies apparatus, test methods, and disclosure requirements for generating aging effects in a seat cushion that reproduce those seen in use. It also provides methods of determining changes in the physical and mechanical properties of seat cushions based on their age and use. This part of ISO16840 provides a set of tests that simulate wear and tear, which can be useful to validate warranty claims and to provide information about product, life, and performance limitations associated with product use.