ANNEXDETERMINATION OF DICHLOROMETHANE AND 1,1,1-TRICHLOROETHANE
DETERMINATION OF ALKALI AND ALKALINE EARTH SULPHIDES
5.APPARATUS
5.1.Usual laboratory equipment.
5.2. 100 ml round-bottom flask with three standard ground-glass necks.
5.3. Two 150 ml conical flasks with ground-glass necks, fitted with a device comprising a dip tube and a side outlet tube for releasing the entraining gas.
5.4. One long-stem tunnel.