Extremely Hazardous and Highly Hazardous Weld Flaw Detection and Leakage Test
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When making a pipeline characteristic table, you will encounter weld detection ratios and leakage tests, which involve extremely hazardous and highly hazardous media. This is related to toxicity. Is there any relationship between extremely hazardous media and corrosive irritation? Is there any more powerful information in this regard?
It is related. The current hazard level is not the same concept as the previous toxicity level. It is assessed after comprehensive consideration of many factors. I suggest you take a look at GBZ 230-2010 "Classification of Hazards of Occupational Exposure to Toxic Substances". If you just want to know the hazard level of a certain substance, you can refer to HGT 20660-2017 "Classification Standards for Toxicity Hazards and Explosion Hazards of Chemical Media in Pressure Vessels"
1. GB 50184 Table 8.1.1 contains the relationship between toxicity and flaw detection ratio. 2. GB 50184 8.5.7 contains provisions on leakage test.