What preparations should be made before the resistance measurement of gloves/finger cots
Anti-static gloves/finger cots are personal protective equipment used with anti-static clothing and anti-static shoes. Correctly and fully equipped with electrostatic protection equipment can effectively release the electrostatic charge of the human body and prevent the accumulation of charge. Resistance is an important value to measure the performance of anti-static gloves/finger cots, and it needs frequent testing.
Common types of gloves are: nitrile gloves, plastic non-slip gloves, anti-static coated gloves, anti-static high temperature gloves, etc.;
Common types of finger cots include: non-slip anti-static finger cots, roll-up anti-static finger cots, etc.
The measuring equipment to be prepared includes measuring electrode and high resistance tester (megohmmeter):
The use range of the high resistance tester is: 1.0*10E3-1.0*10E11Ω
Measuring voltage: R<1.0*10E6Ω, 10V(±10%); R≥1.0*10E6Ω, 100V(±10%)
Before measuring the samples of gloves or finger cots, 6 samples of different specifications and sizes should be selected, and the samples should be numbered to facilitate the collection of sample data.
When measuring the sample, it must be carried out in two environments and placed for at least 48 hours, one is a low humidity environment with a temperature of 23±3°C and a humidity of 12±3%RH, and the other is a medium humidity with a temperature of 23±3° C. The humidity is 50±5%RH.
Precautions:
1. Product certification testing needs to be carried out in a low humidity/medium humidity environment;
2. For acceptance testing, humidity conditions are optional requirements;
3. Periodic testing does not require humidity.