FCM2-A-C14 Datasheet, PDF (66/192 Pages) PANDUIT CORP. – Cable Ties/Wiring Accessories Catalog—WW-CTCB03

Flammability
Flammability
A number of test procedures have been developed which can be used for the evaluation
and comparison of various materials to support combustion.
UL94 Vertical Burning Test
Samples of a material, with dimensions 127mm by 12.7mm and the thickness of the
intended end use product, are tested in an unaged “as manufactured” state and in an
aged state (7 days at 158 °F, 70°C). The test requires the placement of a precisely
controlled flame under a vertically supported specimen for a 10 second period. The
flame is removed and the duration of flaming is recorded. If the flame extinguishes, the
specimen is immediately subjected to a second 10 second ignition period. Duration of
flaming is again recorded. A piece of surgical cotton is placed under the specimen. If
drips ignite the cotton, this fact is also recorded.
Materials Classed 94V-0
Materials classed 94V-0 shall:
• Not have any specimens which burn with flaming combustion for more than 10 seconds after either
application of the test flame
• Not have a total flaming combustion time exceeding 50 seconds for the 10 flame applications for each
set of five specimens
• Not have any specimens which burn with flaming or glowing combustion up to the holding clamp
• Not have any specimens which drip flaming particles that ignite the dry absorbent surgical cotton
located 12" (305mm) below the test specimen
• Not have any specimens with glowing combustion which persists for more than 30 seconds after the
second removal of the test flame
Materials Classed 94V-1
Materials classed 94V-1 shall:
• Not have any specimens which burn with flaming combustion for more than 30 seconds after either
application of the test flame
• Not have a total flaming combustion time exceeding 250 seconds for the 10 flame applications for each
set of five specimens
• Not have any specimens which burn with flaming or glowing combustion up to the holding clamp
• Not have any specimens which drip flaming particles that ignite the dry absorbent surgical cotton
located 12" (305mm) below the test specimen
• Not have any specimens with glowing combustion which persists for more than 60 seconds after the
second removal of the test flame
Materials Classed 94V-2
• Not have any specimens which burn with flaming combustion for more than 30 seconds after either
application of the test flame
• Not have a total flaming combustion time exceeding 250 seconds for the 10 flame applications for each
set of five specimens
• Not have any specimens which burn with flaming or glowing combustion up to the holding clamp
• Be permitted to have specimens that drip flaming particles which burn only briefly, some of which ignite
the dry absorbent surgical cotton placed 12" (305mm) below the test specimen
• Not have any specimens with glowing combustion which persists for more than 60 seconds after the
second removal of the test flame
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Most commonly used parts appear in BOLD.