Assertion: phosgene | /r/HasProperty | seen at 0.4 parts per million
Facets:
Source sentences:
text: Phosgene can be seen at 0.4 parts per million.
text: Phosgene can be seen at 0.4 parts per million.
text: Phosgene can be seen at 0.4 parts per million.
text: Phosgene can be seen at 0.4 parts per million.