After filling the filler into a sample bag of a certain size made of fabric with specified specifications and sewing it, install the above sample bag on the equipment, rub it under the specified conditions, and use an air ion measuring instrument to measure the unit volume The number of negative ions excited during friction in space is recorded, and the curve of the amount of negative ions changing with time is recorded.
T/CTES 1004-2017 history
2017T/CTES 1004-2017 Filling-Testing and evaluation for negative-ion concentration