PN Z04016-02-1989 Air purity protectionTests for benzene and his homologous compounds with saturated side chain Determination of toluene and xylene in ambient air (immission) by colorimetric nitration method with Afjy-dimethylformamide
1989PN Z04016-02-1989 Air purity protectionTests for benzene and his homologous compounds with saturated side chain Determination of toluene and xylene in ambient air (immission) by colorimetric nitration method with Afjy-dimethylformamide