BS EN 464:1994 : Protective clothing — Protection against liquid and gaseous chemicals, including liquid aerosols and solid particles — Test method: Determination of leak-tightness of gas-tight suits (Internal Pressure Test)
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This European Standard describes a test method to assess the resistance of a gas-tight suit to the penetration of gases through, for example, essential openings, fastening, seams, overlaps between items, pores and any imperfections in the materials of construction.
BS EN 464:1994 : Protective clothing — Protection against liquid and gaseous chemicals, including liquid aerosols and solid particles — Test method: Determination of leak-tightness of gas-tight suits (Internal Pressure Test)