Assertion: barium sulfate | /r/ObjectUse | used at loadings of 20 to 40%
Facets:
value: by weight
type: OTHER
value: with a specific gravity of 4.5
type: OTHER
value: generally
type: DEGREE
Source sentences:
text: With a specific gravity of 4.5, barium sulfate is generally used at loadings of 20 to 40% by weight.