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TB603
California flammability standard introduced in Jan 2005
"active" flame protection
using chemicals to treat textiles to reduce flammability
"passive" flame protection
using barrier systems to protect flammable components from fire
16 CFR 1632
Existing US mattress flammability standard - tests for cigarette fires using a minimum of 18 cigarrettes
Foam Density
measured in lbs
1.8lb is the bare minimum; generally see things in the 4lb range
Foam ILD
refers to the firmness of a piece of foam
Indentation Load Deflection
ILD Ranges
ILD's of 10-24 are considered soft, 25-32 are medium, 33-40 are firm, and 41+ are considered extra firm. The comfort range for most people is 25-35
Pincore
Another word for Latex
Latex blending
Most Latex sold is a blend of natural (30%) and synthetic (70%) components.
Foam Resilience
This measures the foam's springiness by determining the percent rebound of a steel ball dropped from a height of 36". The term "H.R" foam refers to a highly resilient foam that will give a very high "ball rebound" reading.
ILD Measurement
The 25% ILD rating is the number of pounds required to achieve a 25% compression of a 4" thick foam using a 50 square inch indentation