Hydrogen Sulphide, H2S
Hydrogen Sulphide, H2S :
Also referred to as sour gas, hence reservoir souring. A heavier than air toxic gas with an eight hour time weighted average occupational exposure limit of 10 parts per million by volume (ppmv) and a ten minute exposure limit of 15 ppmv by inhalation (HSE 1990). Dissolved in aqueous environments this gas can cause corrosion and structural failure of certain steels by their cracking and pitting
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