This instrument is suitable for the requirements of the national standard GB 24540-2009 “Protective Clothing – Protective Clothing for Acid and Alkali Chemicals – Protective Clothing” test method, and can be used to determine the spray liquid tightness and spray liquid tightness of chemical protective clothing. This instrument is suitable for the different requirements of textile and garment, petrochemical, labor safety protection, quality supervision and inspection and other industries and institutions for the liquid tightness test of protective clothing, and provides a scientific and reliable basis for the development of chemical protective clothing, quality control in the production process and the detection of liquid tightness performance in the use of chemical protective clothing.
【Relevant Standards】
GB 24540-2009 Test method for protective clothing – Protective clothing for acid and alkali chemicals; GB/T24539, BS EN468, ISO17491-3, ISO17491-4 and other standards.
【Scope of application】:
This instrument is suitable for the requirements of the national standard GB 24540-2009 “Protective Clothing – Protective Clothing for Acid and Alkali Chemicals – Protective Clothing” test method, and can be used to determine the spray liquid tightness and spray liquid tightness of chemical protective clothing. This instrument is suitable for the different requirements of textile and garment, petrochemical, labor safety protection, quality supervision and inspection and other industries and institutions for the liquid tightness test of protective clothing, and provides a scientific and reliable basis for the development of chemical protective clothing, quality control in the production process and the detection of liquid tightness performance in the use of chemical protective clothing.
[Meet the standard]:
GB 24540-2009 Test method for protective clothing – Protective clothing for acid and alkali chemicals;
GB/T24539, BS EN468, ISO17491-3, ISO17491-4 and other standards.
【Test Principle】:
After spraying (spraying method) or splashing (splashing method) test solution on the chemical protective clothing worn on the test model or human test subject at a specific pressure and flow rate according to the specified time, the inner surface of the chemical protective clothing and the surface of the absorbent indicator suit worn by the test model or human test subject are checked, and the liquid tightness performance of the chemical protective clothing is determined by comparing it with the standard stain area.
Instrument structure:
The liquid tightness test device of chemical protective clothing is mainly composed of the liquid supply system, the liquid injection mechanism and the model turntable.
Overall diagram of the liquid tightness test system for chemical protective clothing
1. Liquid supply system
The liquid supply system includes: liquid supply tank, water supply pump, return water pump, man-machine operation interface and electrical control system, etc. The tester controls the testing process through a human-machine interface (high-performance embedded all-in-one touch screen).
2. Liquid spray system
The spray system includes two parts: the injection system and the splashing system. The injection system is composed of injection nozzle, injection baffle, nozzle lifting mechanism, pressure gauge, injection pressure regulating valve, injection pressure regulator valve, etc. The splashing system is composed of a splash nozzle, a splash baffle, a flow meter, a pressure gauge, a splash pressure regulator, etc.
3. Model turntable
The model turntable includes the rotating mechanism of the turntable, the movement mechanism of the turntable before and after, and the positioning control of the turntable.
Main technical indicators
1. Turntable speed: 1 r/min
2. Fluid supply pressure: 300 Kpa (splash test) / 150 Kpa (spray test)
3. Splash flow: 1.14 0.1 L/min
4. Working power supply: AC220V±10% /50Hz
5. Total power: ≤1.65KW
