For air-activated hand warmers, the requirements of test environment in lab is Stable temperature 25±1℃, Windless, Humidity 50-60%. Instruments used include Weight of Cotton towel: 350g/㎡, Multiplex Data Tester with temperature probe or sensor (0-100 ℃).
For more detailed info and process of air-activated heat patches, pls kindly send email to our mailbox sales@jshanyao.com or visit our website www.jshanyao.com!
