This part of GB/T 24218 specifies the test method of mass per unit area for nonwovens.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB 24218. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 4669 Textiles - Woven Fabrics - Determination of Mass per Unit Length and Mass per Unit Area (GB/T 4669 - 2008, ISO 3801:1977, MOD)
GB/T 6529 Textiles - Standard Atmospheres for Textiles Conditioning and Testing (GB/T 6529 - 2008, ISO 139:2005, MOD)