The problem of determining the degree of toxicity of media
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Dear friends, according to HG/T20660-2017, H2S is a highly hazardous medium. If a set of mixture media contains H2S, it will be classified as a highly hazardous media. Is there any regulation on how much H2S content should be considered? y
HG20660-2000 is still implemented...
So simple and crude? That's too much to ask for
If there are strict requirements and high standards, and you don’t consider the ingredient content, you will definitely be right to treat it as extremely hazardous. But if we consider economic rationality, it is certainly unreasonable and uneconomical. There is this sentence in the 2009 version of the Ronggui Q&A. I will give you a screenshot.: How to identify the degree of toxicity? See picture below
You can read this post https://bbs.hcbbs.com/thread-2015889-1-1.html
Both links are invalid:L I personally prefer this way of thinking about problems, and I will learn from it by the way.* Please share it if you can!
Regulated pressure vessels are still classified according to HG20660-2000.
A trace amount is determined by the design unit.
The link in the post is not invalid, but the link shared in the reference book has expired.