Textile glass. Staple fibres or filaments. Determination of average diameter Ingestion-build-202139 Who is IEC 60051‑7 -

Who is IEC 60051‑7 -  Instruments and accessories for analogue electrical measurement for

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Textile glass. Staple fibres or filaments. Determination of average diameter Ingestion-build-202139 Who is IEC 60051‑7 -1 Scope 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 yarns and materials manufactured from these yarns and corresponds to the average diameter but rounded to the nearest