limiting oxygen index


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limiting oxygen index

[¦lim·əd·iŋ ′äks·ə·jən ‚in‚deks]
(materials)
For a specific material, the lowest concentration of oxygen in the atmosphere, expressed in percent, that will support sustained combustion of the material. Abbreviated LOI.
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In general, both the limiting oxygen index and UL 94 performance of filled and unfilled polyolefins seems to improve with SFR-100 resin due to the silicone's char-formation characteristics.
Furthermore, the compounds with such mixed filler systems exhibit greater ignition resistance in the UL-94 horizontal burn tests and higher limiting oxygen index.
Test specimens for limiting oxygen index (LOI) measurements (130 X 6.
Limiting oxygen index and UL-94 ratings of intumescent PP formulations were also degraded to a great extent in the presence of [CaCO.
The limiting oxygen index (LOI) is a minimum concentration of oxygen (vol%) in a mixture of oxygen and nitrogen that initially shows flaming combustion of a material at room temperature.
The limiting oxygen index (LOI) is an important indicator of the flame resistant properties of a material.
VESTODUR X9426 has a high limiting oxygen index (LOI) and low smoke density, and any smoke gases emitted are of low toxicity.
The limiting oxygen index (LOI) was measured by an ATLAS limiting oxygen index instrument with 120 x 6.
The flammability test was based on the limiting oxygen index (LOI) measurement by following the ASTM D2863-87 method.