JIS K 0311:2020 PDF Download

JIS K 0311:2020 is a standard that provides a method for determining the levels of tetra-through octachlorodibenzo-p-dioxins, tetra-through octachlorodibenzofurans, and dioxin-like polychlorinated biphenyls (PCBs) in stationary source emissions. These emissions are typically produced through combustion and chemical reactions and are released into a flue, stack, or duct.

The method described in this standard utilizes a gas chromatograph/mass spectrometer (GC-MS) for analysis. Specifically, a double-focusing mass spectrometer (MS) is recommended, along with a capillary column for the gas chromatograph (GC). The resolution of the MS should be at least 10,000.

The standard also highlights the importance of safety precautions due to the highly toxic nature of dioxins. It emphasizes the need to avoid inhalation, accidental ingestion, and direct contact with dioxins. Proper ventilation of the pretreatment room and analysis room, as well as the control of waste liquid and waste, is essential. Additionally, attention is given to the potential health risks posed by other drugs and solvents, and measures should be taken to minimize inhalation or accidental ingestion. Adequate ventilation in the laboratory is also recommended.