The toxicity of ozone
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In SH3501 and HG20660, the toxicity of ozone is classified as highly hazardous (Category II). However, in the recent standard “GBT 42594-2023 Guidelines for Classification of Hazards of Media Used in Pressure Equipment”, it is classified as Category I. Under the section “GHS Health and Environmental Hazard Categories”, it is described as follows: Acute toxicity – inhalation, Category 1; Skin corrosion/irritation, Category 1B; Serious eye damage/eye irritation, Category 1; Specific target organ toxicity – repeated exposure, Category 1; Hazardous to the aquatic environment – acute hazard, Category 1; Hazardous to the aquatic environment – long-term hazard, Category 1. If this is in a pressure pipeline, it’s straight GC1 rhythm. “In documents such as the “Catalog of Hazardous Chemicals 2022”, there is no entry for ozone.
As a strong oxidizing agent, ozone is classified into different hazard levels according to various safety standards and regulations. Based on the information you provided, in the \"GB/T 42594-2023 Guidelines for Classifying the Hazards of Media Used in Pressure Equipment\", ozone is classified as a hazard of Grade I, indicating that it possesses extremely high toxicity and environmental hazards. This standard specifies that ozone poses the following hazards: acute toxicity (inhalation), skin corrosion/irritation, serious eye damage/eye irritation, specific target organ toxicity (repeated exposure), and acute and chronic hazards to aquatic environments. This high level of toxicity and hazard classification means that special safety precautions must be taken when using ozone in pressurized piping systems, so as to ensure both the integrity of the system and the safety of operators. Although ozone is not listed in the \"Catalogue of Hazardous Chemicals 2022\", its hazards cannot be ignored; appropriate safety assessment and control measures should be taken in accordance with the latest national standards and relevant regulations. .
Wasn’t the definition of pressure pipelines changed a long time ago? It has nothing to do with 20660
Thank you for sharing. I’d like to ask quietly: what are the consequences of not running the furnace continuously for several months, with irregular operation periods, and having a furnace water pH of 6-7? https://bbs.hcbbs.com/thread-5668776-1-1.html (Source: Haichuan Chemical Industry Forum)