Deformation & Durability
What is mattress deformation and what mattress durability?
The data obtained from the mattress durability tester are visually presented, as illustrated below：
Deflection
（Inches）
|
Load before test（Ibs)
|
Load 25k cycles（Ibs)
|
0 to 25k
％Change
|
Load 100k
cycles（Ibs)
|
0 to 100k
％Change
|
0.5
|
177.45
|
165.27
|
-6.86
|
160.40
|
-9.66
|
1.0
|
243.24
|
223.16
|
-8.25
|
218.21
|
-10.29
|
1.5
|
398.25
|
352.27
|
-11.54
|
346.12
|
-13.08
|
Height（mm）
|
226.21mm
|
209.45mm
|
-7.40
|
204.03mm
|
-9.8
|
Load deflection loction:Length1/2,width1/4
|
The sample was subject to the Hexagonal roller testing using ASTM F 1566-09 part 7 as a procedural guide. Load deflection and height measurements were obtained using ASTM f1566-09 part 6A as a procedural guide. NOTE: measurement conducted on a fully upholstered mattress.
Height measurements were gauged by applying a 1 pound contact force to the mattress surface with the prescribed platen.the mattress was allowed to recover for 1 hour prior to load deflection and heigt measurements.