| abstract |
(A) has an aniline point of 40 to 90 占 폚, 25 to 45% of A C by ASTM D3238 and 5 to 20 of% C N , and a nitrogen content (A) pyrene content is 1 mass ppm or less, the total content of specific aromatic compounds is 10 mass ppm or less, and the kinematic viscosity at 40 DEG C is 650 mm 2 / s or more , An aniline point of 70 ° C or higher, an ASTM D3238% C A content of 3 to 20% and a% C N of 15 to 35% and a nitrogen content of 0.01% or less by mass , A 90% point in GC distillation of 500 ° C or more, a flash point of 250 ° C or more, a content of benzo (a) pyrene of 1 mass ppm or less, and a total content of specific aromatic compounds of 10 mass ppm or less. |