PN C04641-04-1989 Water and waste water Tests for aromatics hydrocarbons Determination of benzene, toluene, (m+p)-xy\ene, o-xylene, styrene by ?head space" gas chromatography
1989PN C04641-04-1989 Water and waste water Tests for aromatics hydrocarbons Determination of benzene, toluene, (m+p)-xy\ene, o-xylene, styrene by ?head space" gas chromatography