kaasaskantavus

Kaasaskantavus is a term used in some Finnish technical contexts to describe the capacity of a material, component, or system to contain, transport, or control gas under specific conditions. The exact meaning depends on the field, but it is commonly connected to gas transport properties such as permeability, diffusivity, and solubility, as well as to the integrity of gas containment under pressure.

In polymer science and materials engineering, kaasaskantavuutta is often discussed in relation to barrier properties: low kaasaskantavus indicates a good gas barrier, whereas high kaasaskantavus suggests greater gas transmission. In energy storage, packaging, geoscience, and environmental engineering, the concept helps describe how systems respond to gas exposure, potential leakage, diffusion, and containment.

Measurement of kaasaskantavus typically involves gas permeability tests, diffusion experiments, and solubility determinations. The resulting permeability coefficients or related diffusivity values depend on temperature, pressure, and the microstructure of the material. In Finnish literature, kaasaskantavus can be used as a broad umbrella term, while more precise terms such as läpäisevyys (permeability) or kaasun siirtokyky are preferred for specific properties.

Etymology: the word combines kaas (gas) with kantavus (bearing or carrying capacity); the term is relatively niche and may be replaced by more specific terms in many contexts. See also gas permeability, barrier properties, diffusion, gas containment, and membrane.