JMT - 505
AIR PERMEABILITY APPARATUS(RIGDEN TYPE)
IS : 8425, BS : 4352 PART-II, BS : 12,146, 915, 1370,4027, 4246 & 4248
Comprises one air permeability cell of range 500 to 10000 sq.cm/gm. The cell is complete with a perforated disc and a compacting plunger. The instrument is supplied with 'U'. Tube manometer having an isolation tap assembly and a suction blub., This apparatus is mounted in a woolen cabinet..