BS EN 752-2008 Highlighted Extract · BS EN 752:2008 EN 752:2008 (E) Septic wastewater can produce...
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BS EN 752-2008 Highlighted Extract · BS EN 752:2008 EN 752:2008 (E) Septic wastewater can produce lethal or explosive gases, particularly hydrogen sulfide (H2S) and methane (CH4)