ASTM D1422 Standard Test Method for Twist in Single Spun Yarns by
the Untwist-Retwist Method
ASTM D1423 Standard Test Method for Twist in Yarns by
ISO 2061 Textiles -- Determination of twist in yarns -- Direct
BS 2085 Method of test for determination of twist in yarns, direct
DIN 53832 Testing of textiles -- Determination of the twist of
single and plied yarns and of the change of length. untwist method
1.The first step is to select the method/mode to be chosen.
2.The yarn has to be clamped between 2 clamps.
3.‘S’ or ‘Z’ key has to be selected depending upon twist direction.
4.The stopper at the left front side of the Automatic Twist Tester
has to be set at approx 50% of expected elongation.
5.The motor has to be started by pressing the ‘START’ key.
6.The motor will start untwisting the yarn and LCD display will
1.Latest microprocessor based equipment used to determine the twist
2.Specially designed for single yarn, double yarn & open-end
3.A special sensor for zero setting.
4.Special tensioning device provided to give tension to the yarn
5.Totally programmable unit.
6.User-friendly control panel, which guides the operator to
undertake all steps for testing.
7.Smooth precision-engineered auto mechanism.
8.1 to 50gms weight supplied to give proper tension during testing.
9.Digital control panel with 16-character, 4 line LCD display.