The main purpose
This instrument is used to test the ability of medical protective clothing materials and non-woven fabrics to eliminate the charge induced to the surface of the material when grounded when the voltage is ±5000V, that is, to measure the static decay time from the peak voltage to 10%.
Instrument characteristics
The whole instrument is designed with four parts:
1. ±5000V voltage control module;
2. High voltage discharge module;
3. Random test module for attenuation voltage;
4. Static decay time test module.
Technical index
1. The measurement range of electrostatic voltage value is 0～±5KV
2. The half-life time limit ranges from 0 to 99.99 hours, with an error of ±0.01 seconds
3. The discharge time is adjustable from 0 to 99.99 hours
4. Sample size: 89mm×(152±6)mm
5. Power supply: AC220v; 50Hz.
Applicable standards (for different standards, different accessories are required)
GB 19082-2023 Disposable protective clothing for medical use
IST40.2 (01) Standard Test Method for Electrostatic Decay of Nonwoven Fabrics
GJB 2605-1996 Specification for heat-sealable flexible anti-static resistance insulation material

YY/T 0867-2011 Test method for static decay time of nonwoven fabric

GB/T 33728-2017 Textiles-Evaluation of electrostatic properties-Electrostatic attenuation method

YY/T 1642-2019 Single-use medical protective hood
YY/T 1633-2019 Single-use medical protective overboot