【Scope of application】
This machine is mainly used for the measurement of elastic elongation and residual elongation of elastic woven fabric under specified elongation.
[Test Principle]
According to ASTM D 3107-2007 test principle
Under the specified load, the length of the sample is measured for the increase after a certain tensile cycle. After releasing the load, remeasure the length of the sample after a certain time interval. The elongation of the fabric is based on the length before being stretched, and its length increases under load. Immediate residual elongation is based on the length before stretching, and the difference in length after a short (30 seconds) recovery after stretching.
[Instrument characteristics]
1. All stainless steel frame design, beautiful and generous;
2. It can realize the positioning test of a single station at any time, or the positioning test of 2 stations at the same time
3. The instrument is equipped with standard stainless steel ruler (1mm scale)
4. 2 sets of 4lbs standard load weights
【technical parameter】
1. Test station: 2
2. Body material: all stainless steel design
3. Material of holder: stainless steel
4. Weight load: 4lbs (1.8kg)
5. Effective clamping width of clamp: ≥70mm