ASTM D4030/D4030M-23

Podrobné informace

Označení: ASTM D4030/D4030M-23

Datum vydání: 01.06.2023

Stran: 5

Země: Americká technická norma

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Anotace

This specification covers the requirements for continuous glass filament sewing thread and untreated and neoprene treated, continuous filament cord; intended to assist ultimate users by designing the types of these products that are typical in the industry. The fiber shall be electrical grade, free of any free alkali metal oxides, such as soda or potash, and foreign particle, dirt, and other impurities. The glass fiber cord or sewing thread shall be wound on tubes, spools, or cones and shall conform to the following requirements: filament diameter; yarn number; strand construction; twist direction; twist level; breaking strength; yarn diameter; twist balance; and ignition loss. The cord and the sewing thread shall also undergo visual examination to check for defects such as cut, spot or stain, and embedded foreign matter.


Keywords:
appearance, construction, designation, diameter, glass cords, glass sewing threads, ignition loss, length per unit mass, organic content, yarn number ,, ICS Number Code 59.100.10 (Textile glass materials)