CFRTitle 16 Part 1633–Standard for the Flammability (Open Flame) of Mattress Sets, March 15, 2006

(Effective compliance date July 1, 2007) (Revised as of January 1, 2010)

Test Category Requested: Qualified Prototype (3 mattress sets)

Note:

As defined by CFR Title 16 Part 1633, a“mattressset”can either be a mattress without a foundation or a

mattress with a foundation. The sale of mattresses tested without foundations might be limited to that

configuration.

Test Item Submitted: Mattress without Foundation

Conditions:

Requirement

Actual

78.6oF

Temperature:

Greater than59oF

Less than 80.6oF

Relative Humidity:

Timelag between conditioning room & test start:

Procedure:

Less than 75%

60%

Within 20 minutes

10minutes

Thesample was conditioned before testing for at least 48 hours at greater than65oFand less than 77oFand a relative

humidity less than 55%.

The mattress was placed on a metal test frame inside a test room having dimensions of10’X12’with and8’high

ceiling. The mattress and frame were located on the wall opposite the doorway. The room is configured in

accordance with Test Room Layout Option B as specified in 16 CFR 1633.

The ignition source was the NIST Dual Burner System constructed of stainless steel tubing in accordance

with the Section 6 Ignition Source and Figure 7. The fuel used was commercial propane delivered at a rate of 12.9

l/minto the top burner for a total time of 70 seconds and a rate of 6.6 l/min to the side burner for a total time of 50

seconds.

After ignition of the burner, we monitored recorded certain properties of the test procedure. These properties are