The main purpose:
Under laboratory conditions, it is used to evaluate the electrostatic properties of fabrics or yarns and other materials after triboelectric charging.
Technical indicators:
1. Adopt advanced numerical control technology and rotary wheel friction electrostatic test method, which can automatically measure the friction band voltage and decay time, and use the amplifier of high-precision electrostatic sensor to improve the test accuracy, and the operation is safe and reliable.
2. The instrument is composed of a testing machine and a computer testing system. The static attenuation ratio is adjustable, which broadens the test range.
3. The test probe adopts the positioning block limit design, which is convenient for positioning.
4. Electrostatic voltage test range: 0～10KV, accuracy: ≤±1%
5. Drum size: outer diameter (150±1) mm, width (60±1) mm, rotational speed: (400±1) r/min
6. Friction time: 0～99.99s/m/h±0.01s adjustable, half-life time range: 0～99.99s/m/h±0.01s
7. The size of the friction cloth: (150±1)mm×(25±1)mm, the pre-tensioning force is: (4.9±0.1)N
8. Sample size: (80±1)mm×(50±1)mm
9. Dimensions of the host: 450mm×315mm×320mm, dimensions of the electric control box: 450mm×256mm×185mm
10. The computer controls the test process, the peak voltage is automatically locked, and the triboelectric peak voltage, friction voltage and decay curve can be displayed in real time, and the test report can be stored, displayed, and printed out.
11. Working power supply: AC220V±10% 50Hz 200w
12. Weight: about 50kg

Applicable Standards
FZ/T 64082-2021 Scrim for filter media
GB/T 12703.5-2020  Textiles- Test methods for electrostatic propensity一
Part 5:Test method using rotary mechanical friction

GB/T 24249-2009    Antistatic fabric for cleanroom garment system