Gas station employees wear jacket overalls, how to verify the anti-static function?

Gas stations are high-risk workplaces, and employees deal with oil and gas and static electricity every day. Wearing jacket work clothes can not only keep out the wind and cold, but also enhance the team's image, but many webmasters ignore a fatal question: Is this jacket really anti-static? Anti-static function is not a word of mouth, it must be scientifically verified. Let's make the verification method clear today?

Why verify the anti-static function?

After the oil and gas evaporate and mix with the air, it may cause combustion and explosion when encountering static electricity sparks. Ordinary jacket fabrics are prone to accumulate static electricity after friction, while qualified anti-static jackets will weave conductive fibers into the fabric to guide the charge away in time. If you only look at the style when purchasing without looking at the test report, it is equivalent to planting a time bomb for the gas station.

? Method 1: Surface resistance test

This is the core verification method. Use a surface resistance tester to take more than 5 test points at different positions of the jacket fabric according to the GB/T 12703 standard. The surface resistance of the qualified anti-static fabric should be between 10 to the 6th power and 10 to the 9th power ohm. If the value is too low, the conduction may be too strong, and if the value is too high, the static electricity cannot be effectively discharged. When testing, pay attention to the ambient humidity to be controlled at 40% to 60%. If the humidity is too low, the accuracy of the results will be affected.

⏱️ Method 2: Electrostatic decay time test

The electrostatic decay time reflects the rate at which the fabric discharges charge. Charge the fabric to a certain voltage with an electrostatic decay tester, and then record the time it takes for the voltage to decay to half. The decay time of qualified anti-static jackets is usually less than 2 seconds. If the decay time is too long, it indicates that the conductive fibers are unevenly distributed or the content is insufficient. This kind of clothing is a decoration in the gas station environment.

? Method 3: Friction voltage test

Simulate the friction scene in actual wear. Rub repeatedly on the jacket fabric with a standard friction cloth, and then measure the resulting voltage value with an electrostatic voltmeter. The friction voltage of qualified anti-static jackets should be less than 100 volts. The voltage of ordinary jackets after friction may be as high as several thousand volts, and the difference is clear at a glance. This test is closer to the real state of employees when they wear, take off and move around on a daily basis.

? Daily quick self-check tips

What should I do without professional equipment? You can observe the distribution of conductive wires on the inside of the clothes. Regular anti-static jackets will be marked with conductive fiber spacing and test report number. You can also use a multimeter to roughly measure the fabric resistance. Although the accuracy is not enough, it can screen out ordinary models that are not anti-static at all. Of course, in the end, the third-party test report shall prevail.

Choosing the right supplier is more important than verification

Instead of trying to verify after the fact, it is better to close the door from the source. Shenzhen Yasenman Apparel Co., Ltd. focuses on the customization of work clothes in special industries such as gas stations and petrochemicals. The jacket work clothes have built-in conductive fiber mesh. Each batch of products passes the double test of surface resistance and electrostatic attenuation time, and can provide authoritative third-party test reports. From fabric procurement to ready-to-wear factory, Yasenman has established a whole-process anti-static control system to support sample customization, LOGO embroidery and full-size segment coverage.

The safety of gas station employees cannot depend on luck. When purchasing jacket work clothes, it is the real responsibility to the employees and the site to look for the manufacturer with the test report and anti-static qualification. Shenzhen Yasen Man Apparel Co., Ltd. uses professional anti-static work clothes to build a safety line for every refueling staff.