This International Standard specifies longitudinal-profile and transverse-section methods for determining the average diameter (i.e. the average value of actual diameters) of staple fibres or filaments in a textile glass product.
This diameter must not be confused with the nominal diameter which is used in the designation of yams and materials manufactured from these yarns and corresponds to the average diameter but rounded to the nearest whole number.
ISO 1888:1996 history
2022ISO 1888:2022 Textile glass — Staple fibres or filaments — Determination of average diameter
2006ISO 1888:2006 Textile glass - Staple fibres or filaments - Determination of average diameter
1996ISO 1888:1996 Textile glass - Staple fibres or filaments - Determination of average diameter
1979ISO 1888:1979 Textile glass; Determination of the average diameter of staple fibres or continuous filaments constituting a textile glass yarn; Cross-section method