This part of GB/T 24218 specifies a method for determining the air permeability of nonwoven fabrics. This section applies to all kinds of nonwoven fabrics, including treated or untreated laminated composite nonwoven fabrics. 2
GB/T 24218.15-2018 history
2018GB/T 24218.15-2018 Textiles—Test methods for nonwovens—Part 15: Determination of air permeability