16 CFR 1500.44 - Method for determining extremely flammable and flammable solids.

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§ 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 × 1 inch wide × 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 time of testing shall be between 68 °F. and 86 °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.

Title 16 published on 2015-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 16 CFR Part 1500 after this date.

  • 2015-11-19; vol. 80 # 223 - Thursday, November 19, 2015
    1. 80 FR 72342 - Amendment To Clarify When Component Part Testing Can Be Used and Which Textile Products Have Been Determined Not To Exceed the Allowable Lead Content Limits; Delay of Effective Date and Extension of Comment Period
      GPO FDSys XML | Text
      Direct final rule; delay of effective date and extension of comment period.
      The effective date for the direct final rule published October 14, 2015, at 80 FR 61729, is delayed from December 14, 2015, until January 13, 2016. The rule will be effective unless we receive a significant adverse comment. If we receive a significant adverse comment, we will publish notification in the Federal Register withdrawing this direct final rule before its effective date. The comment date is extended to December 14, 2015.
      16 CFR Parts 1109 and 1500