Measure fabric static dissipation half-life.
Key formulas: t×Math.LN2÷Math.log(ratio); (v0-vt)÷v0×100
| Item | Formula / Rule | Source / Standard |
|---|---|---|
| Half-life definition | Charge decay half-life is the time for charge to fall to half its initial value; shorter means better antistatic performance | EN 1149-3:2004, test methods for measurement of charge decay |
| Test conditions | Testing runs at specified temperature and humidity, since hygroscopic fibres are humidity sensitive | EN 1149-1:2006, measurement of surface resistivity |
| Antistatic routes | Antistatic performance comes from conductive fibres, hydrophilic finishes or higher humidity, aiming at the same goal | EN 1149-3:2004, test methods for measurement of charge decay |
抗静电半衰期是衡量纺织品静电消散能力的核心指标。本工具根据初始电压、衰减后电压与衰减时间,按指数衰减模型计算静电半衰期,并判定抗静电性能等级,帮助抗静电面料评估与整理效果验证。