[Code of Federal Regulations]
[Title 16, Volume 2]
[Revised as of January 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 16CFR1500.44]

[Page 453-454]
 
                     TITLE 16--COMMERCIAL PRACTICES
 
             CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
 
PART 1500_HAZARDOUS SUBSTANCES AND ARTICLES; ADMINISTRATION AND ENFORCEMENT REGULATIONS--Table of Contents
 
Sec. 1500.44  Method for determining extremely flammable and flammable solids.

    (a) Preparation of samples--(1) Granules, powders, and pastes. Pack 
the sample into a flat, rectangular metal boat with inner dimensions 6 
inches long x 1 inch wide x one-fourth inch deep.
    (2) Rigid and pliable solids. Measure the dimensions of the sample 
and support it by means of metal ringstands, clamps, rings, or other 
suitable devices as needed, so that the major axis is oriented 
horizontally and the maximum surface is freely exposed to the 
atmosphere.
    (b) Procedure. Place the prepared sample in a draft-free area that 
can be ventilated and cleared after each test. The temperature of the 
sample at the

[[Page 454]]

time of testing shall be between 68 [deg]F. and 86 [deg]F. Hold a 
burning paraffin candle whose diameter is at least 1 inch, so that the 
flame is in contact with the surface of the sample at the end of the 
major axis for 5 seconds or until the sample ignites, whichever is less. 
Remove the candle. By means of a stopwatch, determine the time of 
combustion with self-sustained flame. Do not exceed 60 seconds. 
Extinguish flame with a CO2 or similar nondestructive type 
extinguisher. Measure the dimensions of the burnt area and calculate the 
rate of burning along the major axis of the sample.