Hohenstein reports that its heat loss device, WATson, can quantitatively measure the evaporative cooling ability of a textile or textile system. It measures the dynamic interaction of textiles and human thermal regulation with customizable climatic conditions and sweat rates.
The 2019 published DIN SPEC 60015, “Quantitative measurement of the evaporative heat loss of smart textile materials for work, sports/outdoor and leisure,” defines the measuring procedure and requirements for textiles and clothing that claim to have a cooling effect.
Testing by WATson can provide data that includes average cooling power, cooling power over time, fabric response and dry time. The data is used for product development, benchmark comparisons, quality assurance and verified marketing claims, Hohenstein says.
In addition to defined measurement scenarios, WATson’s setup can be tailored to meet specific requirements, the company says.
Hohenstein offers accredited and independent textile testing, certification, and research and development, as well as training.