微量残炭标准油   AL-73130   Sample low carbon residue 1.5%

微量残炭标准油   AL-73124   Refrence Sample high carbon residue 24%

微量残炭标准油   AL-73122   Sample low carbon residue 0.3%

微量残炭标准油   AL-73123   Sample low carbon residue 10.6%