For aerospace applications, materials are screened for out-gassing and off-gassing properties. Out-gassing (the release of chemicals from non-metallic substances in vacuum conditions) and off-gassing (the release of chemicals from materials at ambient or high pressure) are important in assessing the use of materials in these unique environments. VECTRAN™ has excellent out- and off-gassing characteristics.
Off-gassing and out-gassing test results for VECTRAN™ HT fiber
| VECTRAN™ Fiber with: | TML% | CVCM% | WVR% | Toxic Hazard Index |
|---|---|---|---|---|
| No finish | * | 0.00 | 0.00 | 2.226** |
| T97 finish | * | 0.00 | 0.00 | 0.009 |
| T150 finish | 0.30 | 0.00 | 0.00 | 0.015 |
* Test results exceeded precision limits required to produce a statistically meaningful average. Individual sample measurements: fiber without finish, 0.21 and 0.07%; fiber with T97 finish, 0.13 and 0.19%.
** The contribution of benzyl alcohol to this T-value is 2.214. The concentration in the sample was 0.31μg/g; no measured SMAC value was available, therefore a conservatively low value of 0.14μg/g was assumed.
