Abstract： AS 2341.30:2021 pdf download.Methods of testing bitumen and relatedroadmaking products Method 30: Recovery of residue from bituminous emulsion. 6 Apparatus The following apparatus is required: (a) Balance, with a minimum capacity of 250 g....
AS 2341.30:2021 pdf download.Methods of testing bitumen and relatedroadmaking products Method 30: Recovery of residue from
bituminous emulsion.
6 Apparatus
The following apparatus is required:
(a) Balance, with a minimum capacity of 250 g. readable to at least 0.1 g. with a limit of performance not exceeding 0.3 g.
(b) Inert gas delivery system consisting of a carbon dioxide gas bottle (food grade) with pressure regulator, connected by flexible tubing through a 500 mL glass gas washing bottle to a nozzle of glass tubing having an internal diameter of about 6 mm. The gas
nozzle shall have the delivery end bent through approximately 180° so that it may be hooked over the side of the metal container
and extended down the inside about 50 mm.
NOTE 1 The purpose of this apparatus is to direct the flow of gas down the inside of the containerto form a non-oxidizing
atmosphere without hindering the escape of volatile matter.
NOTE 2 Another inert gas, e.g. nitrogen (food grade), may be used.
(c) Hotplate, with variable temperature control.
(d) Wire gauze (optional).
(e) Container, metal with an open top, up to I L capacity.
NOTE 3 A food can having a diameter of appropriately 75 mm and a depth of appropriately 105 mm has been found to be suitable.
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