About: ppm by volume

Head noun: ppm
Postmodifier: by volume

Same concepts

Broader concepts

label	provenance	confidence
ppm by volume	isap:281853871	0.261227
low level	isap:471027433	0.240187
ppm	isap:281853870	0.231429

Narrower concepts

label	provenance	confidence
ppm by volume	isap:281853871	0.261227