This Standard specifies a method for determining the amount of carbon residue, in the range of 0.01% to 30.0% mass fraction, left afer evaporation and pyrolysis of crude petroleum and petroleum products, according to Conradson method.
JIS K 2270-1:2009 Referenced Document
ISO 3171 Petroleum liquids; automatic pipeline sampling
JIS K 2251 Crude petroleum and petroleum products -- Sampling
JIS K 2254 Petroleum products -- Determination of distillation characteristics*, 2018-09-20 Update