Textile glass. Staple fibres or filaments. Determination of average diameter Ingestion-build-202139 BS EN IEC 60904-7:2019 supersedes

BS EN IEC 60904-7:2019 supersedes BS EN 60904‑7:2009

is a connection point by which firefighters can tap into a water supply

The CPX method specified in this document is intended to measure the properties of road surfaces

medium- and long-term innovation projects

8 Measurement equipment and accuracies

Textile glass. Staple fibres or filaments. Determination of average diameter Ingestion-build-202139 BS EN IEC 60904-7:2019 supersedes1 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