Overview This guide provides information about Hydrogen Sulphide (Hydrogen Sulfide) , or H2S, a highly toxic gas that can cause serious injury or fatality at relatively low concentrations. The guide aims to: Provide you with enough information on the characteristics of H2S to enable well informed decisions to be made. Provide you with the information you need to assess risk during operational procedures. Provide you with the information you need to ensure the safety of you and your colleagues in the event of an incident involving H2S> In addition, the guide also covers the medical effects of varying levels of concentration of H2S exposure limitsaction to be taken where accidental exposure has occurred where H2S is found and the precautions to be taken in those circumstances regulatory issues.
