EN 374 Chemical permeation resistance tester
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Application
You use this tester to measure the chemical liquid penetration resistance of protective clothing and related protective equipment.
It is suitable for testing chemical protective suits, protective fabrics, seams, composite materials, and other barrier materials used in chemical protection clothing, gloves, and related safety products.
Standards
The Protective Clothing Chemical Liquid Penetration Resistance Tester complies with the following standards:
(1) ASTM F739 Standard Test Method for Permeation of Liquids and Gases through Protective Clothing Materials under Conditions of Continuous Contact
(2) EN 374-4 Protective gloves against chemicals and micro-organisms – Part 4: Determination of resistance to degradation by chemicals
(3) EN 374-3 Protective gloves against chemicals and micro-organisms – Part 3: Determination of resistance to permeation by chemicals
(4) DIN EN 16523-1 Determination of material resistance to permeation by chemicals – Part 1: Permeation by liquid chemicals under conditions of continuous contact
(5) BS EN 14325 Chemical protective clothing – Test methods and performance classification of chemical protective clothing materials, seams, joints, and assemblies
(6) BS EN ISO 6529:2001 Protective clothing. Protection against chemicals. Determination of resistance of protective clothing materials to permeation by liquids and gases
Parameters
| Item | Specification |
|---|---|
| Test Flow Rate | 0.1–500 ml/min |
| Data Collection Method | Automatic analysis at fixed time intervals |
| Collected Data | Measurement parameters, permeation time, permeation rate, maximum permeation rate, standard breakthrough time |
| Time Measurement Range | 0–99.999 h |
| Power Supply | AC 220 V, 50 Hz |
| Overall Dimensions (L × W × H) | 540 × 380 × 500 mm |
| Total Weight | 40 kg |
Features
You operate the tester through a color touchscreen with Chinese and English menu-based interfaces.
A 32-bit multifunction control board and high-precision temperature acquisition chip ensure stable performance.
A high-efficiency micro flow pump quickly establishes a closed-loop circulation system.
The precision data acquisition system accurately captures and analyzes permeated chemicals.
Corrosion-resistant pipelines ensure long-term reliability when testing aggressive chemicals.
The system offers stable operation, accurate measurement, and simple, efficient testing procedures.
Test Procedures
You clamp the specimen securely between the test chamber and capture chamber using split flanges.
Add the test chemical liquid into the measurement chamber and the capture liquid into the capture chamber.
Set the circulation flow rate and test parameters via the touchscreen interface.
Start the test, allowing chemical permeation through the specimen into the capture liquid.
The system automatically collects and analyzes data throughout the test duration.
Maintenance Information
You should regularly clean the test chambers and circulation pipelines after each test.
Sealing rings and gaskets should be inspected periodically to maintain leak-free operation.
Flow pumps and sensors should be checked to ensure stable circulation and accurate measurement.
Routine inspection and calibration help maintain long-term testing accuracy and reliability.
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