Permobil \205 a compact device for permeation measurement, Focus on IFA s work No. 0304 IFA

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Specifications	Permobil \205 a compact device for permeation measurement, Focus on IFA s work No. 0304 IFA
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0304 Edition 3/2010 617.0-IFA:638.1 Permobil – a compact device for permeation measurement Problem Under practical cond

Specifications	Permobil \205 a compact device for permeation measurement, Focus on IFA s work No. 0304 IFA
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Content	0304 Edition 3/2010 617.0-IFA:638.1 Permobil – a compact device for permeation measurement Problem Under practical conditions, chemical protective gloves and clothing must resist permeation by chemicals for a minimum duration. In accordance with the EU PPE Directive, 89/686/EEC, chemical protective gloves must be subjected to type test- ing, and the manufacturer is obliged to conduct quality surveillance during production. Permeation testing is generally performed with the chemicals against which the glove is intended to provide protection, and under standardized conditions. In the past, relatively expensive laboratory appa- ratus was required for the performance of per- meation measurements. Conclusive measure- ments could not be performed, for example during production, without entailing substantial cost. Activities At its own initiative and in co-operation with an equipment manufacturer, the IFA has developed a compact unit for permeation testing on glove materials intended for protection against liquid organic solvents. Key requirements of this unit were that it satisfy all test conditions set out in DIN EN 374-3, and that it be of compact design. Results and Application The portable unit possesses a test chamber with electronically controlled thermal stabilization. The temperature is regulated by a ventilated combina- tion of electric heating element and thermoelectric cooling. Permeation unit (schematic diagram) For the test, the material sample is clamped within a standardized cell and the test substance applied to the front. The carrier gas flowing through the detection side of the cell is pumped from the ambient air and purified by a combined multi-type gas filter. Downstream closed-loop control ensures precise adjustment of the carrier gas flow. A standard photo ionization detector (PID) is used to measure the hazardous substance concentra- tion in the carrier gas to the rear of the sample following permeation. The unit can be used by both manufacturers and users of personal protective equipment (PPE) for conducting permeation measurements.
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Following Datasheets	aifa0308e_2 (2 pages) aifa0310e_2 (2 pages) aifa0311e_2 (2 pages) aifa0312e_2 (2 pages) aifa0321e_1 (2 pages) aifa0322e_1 (2 pages) aifa0335e (2 pages) aifa0336e (2 pages) aifa0337e (2 pages) aifa0339e (2 pages)
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