MIL-PRF-24172B (SH)
E 84 - Surface Burning Characteristics of Building Materials. (DoD adopted)
E 96 - Water Vapor Transmission of Materials. (DoD adopted)
(Copies of these documents are available from www.astm.org or ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA, 19428-2959.)
2.4 Order of precedence. In the event of a conflict between the text of this document and the references
cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes
applicable laws and regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance
with 4.2.
3.2 Material. The basic ingredients used to formulate type I material and the components for type II material shall
be such that all the requirements of this specification are fulfilled. The insulating material used in this plastic material shall
be free of tolyene diisocyanate, moca, trimethylol propane and pentaerythritol.
3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible provided that the material
meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life
cycle costs.
3.3 Color. Unless otherwise specified (see 6.2), the color of the foamed material shall be the color of the
product as normally manufactured.
3.4 Uniformity. Type I material, and type II material when prepared as specified in 4.5.2.2, shall be homogeneous
throughout and firm in composition. There shall be no blowholes greater than 1/2-inch in diameter or large accumulations
of unexpanded resin or other large occlusions.
3.5 Property values. Types I and II materials shall conform to the property values shown in Table I when tested as
specified.
3
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business