BS F 134:1989 - Specification for continuous filament polyester sewing thread suitable for aerospace purposes
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BS F 134:1989 is a British Standard specification that provides requirements for continuous filament polyester sewing thread intended for aerospace applications. This standard outlines the characteristics, performance criteria, and testing methods for this specific type of sewing thread.
Key aspects covered by BS F 134:1989 may include:
Material Composition: Specifications regarding the composition of the continuous filament polyester sewing thread, including the type and quality of polyester used.
Physical Properties: Requirements for various physical properties such as tensile strength, elongation, thickness, and diameter of the thread.
Color and Appearance: Standards for the color and appearance of the thread, ensuring consistency and uniformity in aerospace applications.
Chemical Resistance: Criteria for the thread's resistance to chemicals, oils, fuels, and other substances commonly encountered in aerospace environments.
Durability and Performance: Specifications related to the thread's durability under sewing conditions, including resistance to abrasion, friction, and heat.
Testing Methods: Guidelines for testing the thread to ensure it meets the specified requirements and standards for aerospace use.
