Downproofness - International Rotating Box

1. Description of Test Apparatus
   
   The tumbler is a 45.5 centimeter plastic box with door on one side. A motor rotates the box at a speed of 48 ± 2 revolutions per minute. Twenty-four No. 6.5 solid silicone stoppers are used in the box.
2. Sample Pillow Specifications
   
   Finished Size of Test Pillow: 20cmX30cm
   Seam Style: “SSe” (from ASTM D6193). Also known as a “French seam.”
   Stitch Length: Approx. 5 stitches/cm
   Stitch Style: “Type 301” (from ASTM D6193)
   Needle Size: 90/14
   Thread: 29Tex
   Mass of Fill Material: 35 grams
   Mixture of Fill Material: Specified by customer
3. Testing Sample Pillow
   
   1. Clean test pillow is placed in clean tumbler box.
   2. Box rotates for 30 minutes.
   3. All fibers, feathers and clusters are collected from surface of pillow, tumbler box and silicone stoppers.
   4. Collected material is evaluated and counted.
4. Reporting of Results
   
   The numerical rating (see Chart 1) is based upon the amount of fibers, down, and/or feathers that escaped or are protruding through the fabric after the 30 minute tumbling period. Note: only fibers > 4 mm are counted.