May I ask who has the quality standards for coal tar hydrogenation products?
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Request the quality standards for coal tar hydrogenation products.
From a personal perspective, there shouldn’t be such a standard. It should be considered from the perspective of the target product – that is, what the product to be manufactured is, and the relevant standards for that product should be referred to.
Reply to 2# *aojungnft: What I’m looking for are corporate standards; companies that are already in operation should have such standards
What was said on the 2nd floor is correct; regardless of the method used for production, the standards should be the same. The product of hydrogenation is triphenyl; you can check the relevant standards for that. As for corporate standards, I wonder if those on the first floor are aware of this industry-standard rule—that they need to be higher than **the standard; in that case, it shouldn’t be difficult to establish them