Compliance Standards:
- BIS 1220
Applications:
- This standard covers the method for the determination of volatile matter content of coal tar pitch.
Details:
Consists of following apparatus and accessories
1) Platinum crucible:
- External diameter at base : 24.0 ± 0.5 mm
- External diameter at top : 34.0 ± 0.25 mm
- External height : 35.0 ± 0.5 mm
- Volume to brim : 27.0 ± 0.5 ml
- Weight : 22.0 ± 1.0 g
Provided with a closely fitting lid, grooved to receive the rim of the crucible and having a central hole 2 mm in diameter
2) Meker Burner:
- Having having a diameter of 31 mm at the top , the flame diameter being 30 mm maximum diameter
3) Water manometer:
- Connected by means of a T-piece with the gas supply entering the burner
4) Three arm crucible support with silica points:
5) Retort stand and clamp:
- To hold the three-arm crucible support (see Fig. 3 of IS 1220), so arranged that when in position, the bottom of the crucible is 10 mm above the burner, the crucible being completely enveloped by the flame.
6) Standard Draught Screen:
- Consisting of a semi-cylindrical metal sheet, 300 mm in diameter and sufficiently high for the purpose.
Note:
- Electronic weighing balance, crucible tong are also required to perform the test and available separately

