ISO 22155 pdf download Soil quality — Gas chromatographic determination of volatile aromatic and halogenated hydrocarbons and selected ethers — Static headspace method 5.4Shaking machine A shaking machine with horizontal movement (200 to 300 movements per minute).5.5Capillary columns Fused silica capillary columns with a non-polar or semi-polar stationary phase allowing sufficient separation ofthe compounds of interest. A thick film of...