Assertion: carbon black's carbon | /r/HasProperty | wt %
Facets:
Source sentences:
text: 6.97 Carbon (wt %) 91.64 Sulfur (wt %) 0.81 Nitrogen (wt %) 0.35 Oxygen (wt %) 0.23 Specific Gravity at 60° F. [ASTM D-287] 1.1029