Cochin laboratory

RAMSBOTTOM CARBON RESIDUE-RCR (P 8, D 524, IP 14, ISO 4262)

This test method is generally applicable to relatively non-volatile petroleum products which partially decompose on distillation at atmospheric pressure. The values obtained by this method are not numerically the same as those obtained by Test Methods D 189 or D 4530.

MICRO METHOD (D 4530, IP 398, ISO 10370)

The test results are equivalent to those by Conradson Carbon Method, however, this test method has the advantage of better control of test conditions, smaller samples, and less operator attention. Up to twelve samples can be run simultaneously. This test method is applicable to petroleum products that partially decompose on distillation at atmospheric pressure and was tested in the carbon residue range of 0.10 to 30 m/m %