Regarding GB 50493-2009 Code for Design of Detection and Alarm Systems for Flammable and Toxic Gases in Petrochemical Industries
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According to 2.0.2 of GB 50493-2009, the Code for Design of Detection and Alarm Systems for Flammable and Toxic Gases in Petrochemical Industries, does it mean that if a gas is not listed in the catalog of highly toxic substances, there is no need to install a toxic gas alarm?
Such as toluene, sulfur dioxide, and so on
2.0.2 Toxic gases: Refer to gases that can cause acute or chronic health hazards in workers through bodily exposure during their occupational activities. However, the specifications clearly state that the range of toxic gases covered by these standards refers to the toxic vapors or gases listed in the \"Catalogue of Highly Toxic Substances\" (Document No. Wei Fa Jian Fa 142).
Toluene and sulfur dioxide are not included in this list, so they can be considered non-toxic gases, and it is not necessary to install toxic gas alarms. Can it be understood this way?
Sulfur dioxide is a common toxic gas; this table is attached after GB50493-2019