Material Flammability Test

DOE-STD-1167-2003

suit are coated with the powder. When the powder spraying is complete, the

test operator should start the exhaust blower and adjust the blower speed to

maintain a negative pressure within the chamber. When the test chamber air

has been cleared, the test subject should leave the test chamber. The suit

tester should stand just outside the chamber and remove the supplied-air suit

exactly as instructed by the DOE contractor's SOP. The suit tester should

then enter the photography or observation room.

19.2.6 Photographs should be made of the suit tester, with UV lights or equivalent,

using the same poses used for preliminary photographs in 19.16.6.1.1 or

observations will be made with a handheld ultraviolet light.

19.2.7 Any contamination transfer indicated by the UV powder visible in the

photographs or by the analysis of the Millipore filters should constitute cause

to re-examine and consider modification of the supplied-air suit removal

procedures.

20.0

Material Flammability Test

20.1

Test Equipment and Requirements

20.1.1 This test method is a modification of the NFPA 701-89 "Flame-Resistant

Textiles and Films." Two modifications of the NFPA test are necessary for

this application:

Material that has been treated or conditioned to enhance non-flammability

should be accepted for testing.

The material is not considered self-extinguishing if the material melts,

allowing the flame to drop away and accomplishing extinguishment.

20.1.2 Test Description: This test is performed by cutting supplied-air suit material

into strips of appropriate length, and burning the material in a special shield.

20.1.3 A shield should be constructed from fire-resistant material, having interior

dimensions of approximately 12 in. wide, 12 in. deep, and 30 in. high, and an

opening at the top. The shield should be so constructed as to provide a

ventilating opening 1 in. high around the bottom and should have a viewing

window large enough to permit observation of the entire test specimen. A

spring clamp should be attached rigidly to the shield so that when a specimen

is attached, it will be centered within the shield.

20.1.4 Two strips of supplied-air suit material, 1 in. wide by 18 in. long, should be

cut in both the machined and the transverse directions from each of the

materials being tested. Gauge marks should be drawn across the specimens 3

in. from each end, defining a 12 in. gauge length over which the burning is to

be measured.