(9) the underground water quality in accordance with article 2.4 (1), use the Liquid Gas Liquid Chromatography – method of Extraction Liquid or Gas Chromatography/Mass-Spectrometry Extraction Liquid or how PCD agreed.(10) the underground water quality in accordance with article 2.4 (2), Pyridine Barbituric Acid method or method of Ion Chromatography or other methods or Colorimetry PCD agreed.(11) the underground water quality in accordance with article 2.4 (3) Liquid Liquid Extraction method using Gas Chromatography – method (Method II) or other means that the pollution control Department approval.(12) the underground water quality in accordance with article 2.4 (4), use the Purge method to Trap and Gas Chromatography or Gas Chromatography/Purge and Trap method in Mass Spectrometry, or other means that the pollution control Department approval. 4 comments how to collect and preserve underground water samples, according to the pollution control Department.Published in the Government Gazette
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