Assertion: hydrogen sulfide's presence | /r/PartOf | the fluid
Facets:
Source sentences:
text: While the concentrations given in items a) and b) are the normally accepted minimum concentrations at which material problems occur, the presence of other constituents in the phases making up the fluid, such as CO 2 in the gas phase and salts in the liquid phase, may cause problems to occur at lower concentrations of hydrogen sulfide.