It is made as per IP 13 ASTM D- 189 Specifications.
It is useful to determine amount of Carbon Residue when an oil is
eaporated under specified Conditions. The Carbon residue values
of crude Oil residuam etc. These are useful in the manufacture of
various lubricants. The apparatus con sists of spun sheet iron crucible
25 cc Capacity Sheet Iron hood and sheet iron block on a stand with
triangular wire, and gas Burnor.