Certification and Registration
EN ISO 13982-2 Protective Clothing Test Standard
Category:
Protective Clothing
EN ISO 13982-2 Standard Description
EN ISO 13982-2 Protective clothing for use against solid particulates - Part 2: Test method of determination of inward leakage of aerosols of fine particles into suits
EN ISO 13982-2 Scope of application
EN ISO 13982-2 A test method is specified to determine the barrier efficiency of chemical protective clothing against dry, fine particulate aerosols.
EN ISO 13982-2 Test Method
Test Principle
1.A standard sodium chloride aerosol is generated inside the test chamber. The test subject wearing the protective suit under evaluation performs a specified series of activities inside the chamber. The inward leakage at each sampling location inside the protective suit is measured using flame photometry.
2.The percentage of inward leakage at each sampling location (L<sub>ijmn</sub>), the total inward leakage of each protective suit (L<sub>S</sub>), each test subject (L<sub>H</sub>), each activity (L<sub>E</sub>), each sampling location (L<sub>P</sub>), and the average total inward leakage (L̅) are calculated.
It should be noted that the test principle of this method differs from that used for respiratory protective devices. However, it is similar to the inward leakage test principles applied to Type 1 and Type 2 chemical protective suits and protective suits against radioactive contamination.This method provides a means of measuring the leakage of dry aerosol particles generated from sodium chloride solution into protective clothing. The particles used in the test have a mass median aerodynamic diameter of 0.6 μm.
Test Equipment
1.An aerosol generator, one or two flame photometers, and a test chamber, as specified in EN 136.
2.A treadmill capable of operating at a speed of (5 ± 0.5) km/h, installed inside the test laboratory. The schematic diagram of the test setup for determining inward leakage is shown below.
3.Sodium chloride aerosol test agent, with particle size distribution, average test agent concentration, and distribution requirements as specified in EN 136.
4.An adjustable pump and air tubing for sampling air from the protective suit under test.
The pump shall be adjusted to provide a sampling flow rate of (2 ± 0.5) L/min from inside the protective suit. The flow rate shall remain constant within ±2 L/min during the test.Depending on the type of photometer used, the sampled air may need to be diluted with clean air. No condensation shall occur inside the sampling tube during testing. This can be achieved by introducing dry, clean air upstream of the condensation area through a suitable pipe system or other appropriate methods to prevent condensation.When calculating the concentration at the sampling point, the dilution effect caused by condensation control shall be considered.
5.Four sampling probes are required. One probe is used to measure the challenge aerosol concentration, and three probes are used to measure aerosol concentration inside the protective suit.Each probe shall be mounted on a suitable transparent plastic tube with an internal diameter of 4.0 mm.
The three probes used for measuring aerosol concentration inside the protective suit shall be positioned close to the test subject’s body at the locations shown in the figure.
Special attention shall be paid to the positioning of sampling points when testing two-piece garments, workwear with elastic waistbands, or garments worn over other clothing.
6.The sampling system for challenge aerosols shall be separated from the sampling system used to measure aerosol concentrations inside the test suit. Where possible, a dedicated flame photometer shall be used to prevent contamination of the overall inward leakage sampling system.
SATISFY provides one-stop protective clothing testing services, including preliminary assessment, preparation and submission of technical documentation, complete test monitoring, report interpretation, data analysis, and corrective action recommendations.
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