Definition of corrosive liquids in the definition of pressure pipelines
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Recently, I have been studying the \"Regulations on Safety Inspection of Pressure Pipelines – Industrial Pipelines\". In the definition of pressure pipelines, it is specified that the conveyed media include \"flammable, explosive, toxic, or corrosive liquids\". For flammable and explosive substances, the relevant regulations can be referred to in the building codes and petrochemical industry standards; for toxic substances, GB5044 can be used as a reference. I am not sure whether there are any specific regulations regarding corrosive liquids
It generally refers to strong acids and strong bases, I guess
There is no standard definition; define your own
Corrosive liquids include sulfuric acid, hydrochloric acid, nitric acid, and alkaline substances such as sodium hydroxide, potassium hydroxide, and calcium hydroxide solutions.
There is a basis for this classification. Corrosive fluids refer to those, as defined by GB6944, that cause visible necrosis upon contact with skin within 4 hours, or have a corrosion rate of more than 6.25 mm/year on 20# steel at 55°C. For details, see the implementation guidelines for GB/T20801. The excerpt is as follows:
It has been clearly explained on the second floor; you can also find this explanation in the appendix section of TSG D0001. After all, it is authoritative