Range of toxic gases
Thread Content
According to clause 2.0.2 of the \"Design Code for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries\" GB50493-2009, toxic gases refer to those gases that can cause acute or chronic health hazards when workers are exposed to them as part of their occupational activities; these include the toxic vapors or gases listed in the \"Catalogue of Highly Toxic Substances\" (Wei Fa Jian Fa [2003] No. 142). The toxic gases in the 2019 version refer to those toxic gases or vapors that can cause death or permanent health damage to workers during their occupational activities through skin contact or inhalation. How is this calibrated? GBZ/T223-2009 \"Specifications for the Installation of Toxic Gas Detection and Alarm Devices in Workplaces\" refers to gases that can cause acute occupational poisoning. The detection range applies to areas where highly toxic gases or highly volatile gases may be present, as well as areas with large amounts of other toxic gases.
Learning*, learning*. Thank you to the original poster for sharing.
The Design Standard for Detection and Alarm of Flammable and Toxic Gases in the Petrochemical Industry, GB/T 50493-2019, came into effect on January 1, 2020. Does anyone have an electronic version?
In Professor Pei Bing’an from Sinopec Luoyang/Guangzhou Engineering Co., Ltd., one of the main drafters of the GBT 50493-2019 standard,’s article “Interpretation of the Revisions to the Design Standard for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries – GB50493 (Compiled Version)”, the main aspects of the revisions to GBT 50493-2019 are as follows: 1. The name of the standard has been changed from “Design Code” to “Design Standard””； 2. The range of toxic gases has been expanded from those listed in the Catalogue of Highly Toxic Substances to common highly toxic gases ； … GBT 50493-2019 adds formaldehyde, ethylene oxide, and bromine to the list of toxic gases in the appendix.