This standard specifies the classification, marking, requirements, test methods, inspection rules and marking, packaging, transportation and storage of double-twisting spindles. This standard applies to double-twisting spindles for twisting cotton, wool, linen, silk, silk, chemical fiber and other pure spinning and blended spinning.
GB/T 7111.1 Textile machinery--Noise test code Part 1: Common requirements
GB/T 9239.1-2006 Mechanical vibration. Balance quality requirements for rotors in a constant(rigid) state. Part 1: Specification and verification of balance tolerances