PN Z04192-02-1988 Air purity protection Tests for hexachlorobutadiene-l,3 Determination of hexachlorobutadiene-l,3 in work places by gas chromatography with sample enrichment
1988PN Z04192-02-1988 Air purity protection Tests for hexachlorobutadiene-l,3 Determination of hexachlorobutadiene-l,3 in work places by gas chromatography with sample enrichment