Tung oil Re: chinese tung oil export grade Spec: Color: not darker than gardner 8 . Specific gravity (20/4*c): 0.9360--0.9395 Refractive index (20*c) : 1.5170--1.5225 Iodine value: 163--173 Saponification value:190--195 Moisture & admixture (max): 0.3% Free fatty acid (max) : 4% Worstall's heat test (max): 7.5minutes Model beta tung oil test: negative (no crystalizion) Packaging in new drum, 190kgs net each. 15.2mts ( 80drums, 1x20f+fcl )