Chlorine is a highly toxic chemical and also a highly hazardous substance.
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This post was last edited by Qingse Nianhua on 2018-9-26 at 12:34. Safety issues related to the use of chlorine in design have sparked significant controversy within the company. I would appreciate some advice from those who are more experienced! According to the \"Catalogue of Highly Toxic Chemicals\" (2002 edition) issued in 2002, chlorine is classified as a highly toxic chemical. According to the **standard ‘Classification of Hazards from Occupational Exposure to Toxic Substances’ (GB5044—85), chlorine is classified as a highly hazardous substance, rather than an extremely hazardous one. **According to the industry standard \"Classification of Toxicity Hazards and Explosion Risks of Chemical Media in Pressure Vessels\" (HG20660—2000), chlorine is also a highly hazardous medium. The terms ‘highly toxic chemicals’ and ‘highly hazardous substances’ seem to refer to different concepts; being highly toxic does not necessarily mean being extremely hazardous. I hope some experts can give me some advice!
First of all, all 3 criteria you mentioned are failure criteria, and they have been replaced by new criteria. Secondly, from a regulatory perspective, highly toxic chemicals and highly hazardous substances should be distinct concepts.
Is 5044 replaced by GBZ230? It also doesn’t say it’s invalid
Check the Engineering Standards Network; GB5044—85 is obsolete
In HG20660-2017, the appendix explicitly states that chlorine is a highly hazardous substance
Highly toxic chemicals and those with extreme hazards are two different concepts, with different classification criteria. To determine whether it is a highly toxic chemical, one should consult the \"Catalogue of Hazardous Chemicals\" (2015 edition); as for assessing its degree of hazard, calculations should be carried out in accordance with the requirements of \"Classification of Hazards from Occupational Exposure to Toxic Substances\" GBZ230-2010.
The scope of this standard is \"chemical pressure vessels,\" and sulfuric acid is listed there as a Category I highly hazardous medium. Does that mean sulfuric acid pipelines need to be designed in accordance with GC1? Has anyone come across this before? Let’s discuss it
I’m currently working on a project that involves concentrated sulfuric acid, so it has to be treated as a highly hazardous substance. I plan to use GC1 for handling it; it’s unpleasant, but that’s what the regulations require
A project carried out in the first half of the year was only halfway finished; later, everything was done in accordance with GC1.
Catalogue of Hazardous Chemicals (2015 edition) 1381 Chlorine, liquid chlorine； Chlorine 7782-50-5 highly toxic