Fill power
The bulking power (engl. Fill power ) is a characteristic measure for down and other upholstery fabrics, which indicates what volume occupies a certain mass of the substance after a period of compression.
A common unit in trade is the Anglo-American cubic inch per ounce (English: cubic inches per ounze , short in³ / oz or cuin for cu bic in ches). The measurement is made by compressing one ounce (≈ 28 g) of the down mixture in the measuring cylinder for 24 hours. The volume to which the sample expands is then measured and reported in inches³ (1 inch³ ≈ 16.4 cm³).
The higher the fill power value, the better the thermal insulation in relation to the packing volume. A high-quality down has a fill power of 700–800 cuin. Commercially in good sleeping bags or jackets are 600–700 cuin. Down with less than 500 cuin has - with the same mass of filling of a down jacket, for example - less bulky volume (loft) and a correspondingly lower insulation effect.
Individual evidence
- ↑ Material information on the website of the provider "Globetrotter" ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Glossary on the website of the company "Yeti"
- ↑ Outdoor lexicon on bewaehrungsprobe.de
