PN Z04022-10-1989 Air purity protection Tests for chlorobenzenes Determination of chlorobenzene and dichlorobenzenes in permanent residence area air by gas chromatography with sample enrichment
1989PN Z04022-10-1989 Air purity protection Tests for chlorobenzenes Determination of chlorobenzene and dichlorobenzenes in permanent residence area air by gas chromatography with sample enrichment