Highly hazardous media: Selection issues between SH3046 and GB50341
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Currently, some storage tanks hold extremely and highly hazardous materials, and their design is that of flat-bottomed tanks. According to GB50341-2014, its use is not permitted. Non-highly toxic substances specified in SH3046-92 can be used. Question 1: What are the highly toxic substances in SH3046? The standard does not specify the basis for classification. Question 2: For large storage tanks containing extremely and highly hazardous media, if 50341 cannot be used, is it feasible to use 3046 instead? ； Are there any other more appropriate handling methods or standards?
You haven’t understood the meaning of the regulations; it’s not that their use is prohibited, but rather that they are not suitable for designing flat-bottom storage tanks for extremely hazardous media. For the classification of highly toxic substances, refer to the Catalogue of Highly Toxic Chemicals (2015 edition) ； Extremely hazardous and highly hazardous media are terms used in occupational health classification, and their assessment requires calculation.
SH3046 is from version 92; it’s been too long since then, and it’s not suitable for current manufacturing processes. It should be followed in accordance with GB50341
Isn’t the assessment of the toxicity of media in pressure vessels carried out in accordance with standard 20660? I don’t know much about this; I’m not sure if that’s correct
The standard has been adjusted to GB/T150.
According to SH/T3167-2012 standard
The explanatory notes of SH/T 3167-2012 also do not recommend its use for extremely and highly hazardous media; in such cases, it is necessary to establish stricter requirements for design, welding, and testing.
That’s right; that’s exactly what the original text of the standard explanation says
GB50341 clearly states that it is not applicable to extremely hazardous and highly hazardous media, as specified in clause 1.0.2; in other words, if your medium is extremely hazardous or highly hazardous, then it has nothing to do with GB50341 at all. . .
There are numerous storage tanks for extremely hazardous media in accordance with GB 50341; however, you need to propose additional technical requirements