Flammability, smoke and halogen content are separate properties
- Flame retardant
The formulation is evaluated for its specified fire behaviour. Flame retardancy does not mean non-combustibility or a fire-resistant penetration.
- UL 94
The material specimen is tested by a defined method. Its classification is separate from the finished gland or enclosure assessment.
- Halogen-free
The requirement concerns the specified material’s halogen content. It does not by itself establish smoke, flame or assembly performance.
- LSZH
Low-smoke and halogen-related claims address defined tests. Neither replaces a complete application or fire-resistance assessment.
- Smoke densityThis term
Smoke affects light passing through the test chamber. Compare the stated specimen, exposure and optical measurement method.
- Oxygen index
The controlled gas mixture supports a defined combustion assessment. It is a different test from a UL 94 material classification.
A flame test, oxygen-index apparatus, smoke chamber and composition assessment answer different questions. A material classification does not certify the complete cable-entry assembly.
Conceptual property assessments without pass thresholds or test outcomes. Confirm the exact material grade, specimen, method and required application standard.