Assertion: phosgene's odour | /r/HasProperty | detectable
Facets:
Source sentences:
text: For this odour to be detectable, the concentration of phosgene actually had to be at 0.4 parts per million, several times the concentration at which harmful health effects could be expected.
text: For this odour to be detectable, the concentration of phosgene actually had to be at 0.4 parts per million, which is several times the concentration where health effects could be expected.