GB/T 7690.2-2013
ActiveReinforcements - Test method for yarns - Part 2: Determination of twist
增强材料 纱线试验方法 第2部分：捻度的测定
Application Summary AI generated
This standard specifies the test method for determining the twist of yarns used as reinforcements in composite materials. It is applied in the textile and composites industries to measure the number of turns per unit length in glass, carbon, or aramid yarns, ensuring consistent mechanical properties in products like fiber-reinforced plastics. The method is critical for quality control during yarn production and for verifying material specifications in manufacturing processes.
Related Standards
GB/T 4202-2001
Designation for glass fibres
GB/T 20102-2006
Test method for determining tensile breaking strength of glass fiber reinforcing mesh, after exposure to a sodium hydroxide sulution
GB/T 20310-2006
Textile glass-Rovings-Manufacture of test specimens and determination of tensile strength of impregnated rovings
GB/T 20309-2006
Textile glass - Mats and fabrics - Determination of contact mouldability
GB/T 17470-2007
Glass fiber mats - chopped strand and continuous filament mats
GB/T 4202-2007
Designation for glass fibres
GB/T 21825-2008
Glass fibre geogrid
GB/T 18371-2008
Glass filament yarn
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.