Work Item
ASTM WK59815

New Test Method for Evaluation of Melting Behavior and Char Formation Properties of Textile Materials

1. Scope

1.1This test method is used for evaluation of melting behavior and char formation properties of textiles. 1.2This standard shall be used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled laboratory conditions and shall not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. 1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.




Current standards for evaluation of melting behavior either require comments regarding melting and dripping during a brief exposure to direct such as ASTM D6413, "Standard Test Method for Flame Resistance of Textiles (Vertical Test" (12 seconds) or a longer exposure to heat in an oven at 500F (260C) as required in many NFPA standards such as NFPA 2112, Section 8.4 Heat and Thermal Shrinkage Resistance Test (5 minutes), or NFPA 1972, Section 8.57 Resistance to High Temperature Blocking Test (6 hours). For flammable materials which may be used as undergarments with flame resistant clothing as described in NFPA 2112 and NFPA 2113, ASTM D6413 may leave little or no charred material to examine for evidence of melting. Oven tests such as those used by NFPA involve longer times at lower temperatures that may not be relevant flash fire scenarios. In addition, ability to conduct these oven tests is not widely available due to the need for special exhaust control and breathing protection needed in areas where the tests are conducted. This effort seeks to develop a relatively quick and easy method to better evaluate melting behavior using widely available equipment. ASTM D6413 was chosen as a basis for this new test for this reason.

The title and scope are in draft form and are under development within this ASTM Committee.


Developed by Subcommittee: D13.52

Committee: D13

Staff Manager: Nora Nimmerichter

Work Item Status

Date Initiated: 07-17-2017

Technical Contact: Celia Powell

Item: 001

Ballot: D13.52 (17-01)

Status: Will Reballot Item