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1.1 ,This test method provides for sampling a large volume of atmosphere, 1600 to 2400 m3 (55 000 to 85 000 ft 3), by means of a high flow-rate vacuum pump at a rate of 1.13 to 1.70 m3/min (40 to 60 ft3/min) (1-4).2
1.1 ,This test method provides for sampling a large volume of atmosphere, 1600 to 2400 m3 (55 000 to 85 000 ft 3), by means of a high flow-rate vacuum pump at a rate of 1.13 to 1.70 m3/min (40 to 60 ft3/min) (1-4).2