This part of GB/T4802 specifies the method for determining the fuzzing, pilling and felting properties of fabrics using a random tumble tester. This section applies to woven and knitted fabrics, including pile fabrics. This section does not apply to fabrics that cannot tumble freely.
GB/T 4802.4-2020 Referenced Document
GB/T 6031-2017 Rubber, vulcanized or thermoplastic—Determination of hardness (hardness between 10 IRHD and 100 IRHD)
GB/T 6529 Textiles.Standard atmospheres for conditioning and testing
GB/T 6529-2008 Textiles.Standard atmospheres for conditioning and testing
GB/T 4802.4-2020 history
2020GB/T 4802.4-2020 Textiles—Determination of the fabric propensity to surface pilling, fuzzing or matting—Part 4: Random tumble pilling method
2009GB/T 4802.4-2009 Textiles.Determination of fabric propensity to surface fuzzing and to pilling.Part 4:Random rolling method