Süttimistemperatuur

Süttimistemperatuur is a term found in some Finnish- and Estonian-language technical texts that refers to the temperature at which a substance begins to ignite or smolder when exposed to heat. The exact meaning can vary by field and standard, but it generally concerns the onset of self-sustained combustion or smoldering rather than the point at which the material is completely melted.

Etymology and usage notes: The word combines a root related to smoldering or ignition with the word for temperature, reflecting its association with the initiation of combustion. Because terminology in fire safety and materials science can differ between languages and regulations, süttimistemperatuur is not universally standardized and may be used interchangeably with, or distinct from, related concepts such as ignition temperature or smoldering onset in certain contexts.

Measurement and standards: Determining süttimistemperatuur typically involves heating a material under controlled laboratory conditions and observing the onset of visible combustion, flame, or sustained glow. Test methods and the specific ambient conditions (such as oxygen availability, pressure, and sample geometry) influence the reported value. Different disciplines may emphasize slightly different criteria for what constitutes ignition or smoldering.

Applications and significance: This concept is relevant for assessing flammability risk, informing safe storage and handling practices, and guiding material selection in industries like textiles, polymers, and coatings. It complements other flammability metrics such as flash point, ignition temperature, and autoignition temperature, helping to build a more complete safety profile for materials.

Limitations: The term is regionally used and may be unfamiliar outside Scandinavian-speaking regions. When precise interpretation is required, it is important to consult the specific standard or study cited to understand the defined test conditions and criteria.