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According to Order No. 373 of the State Council, the \"Regulations on the Safety Supervision of Special Equipment,\" pressure pipelines that fall under the scope of special equipment supervision are those with a maximum operating pressure of greater than or equal to ( ) MPa (gauge pressure) and a nominal diameter greater than ( ) mm. A. 1.0, 40 B. 0.5, 35 C. 0.2, 30 D. 0.1, 25. Due to management requirements, if you need to view content from a few days ago, please access it through the summary post below. https://bbs.hcbbs.com/home.php?m ... w=me&from=space
**In the list of 8,000 items contained in the \"Announcement by the General Administration of Quality Supervision, Inspection and Quarantine on the Revision of the Catalogue of Special Equipment (No. 114, 2014)\\" issued by the agency on October 30, 2014, this definition has been changed as follows: A pressure pipeline refers to a tubular device that uses a certain pressure to transport gases or liquids. It is defined as a pipeline whose maximum operating pressure is greater than or equal to 0.1 MPa (gauge pressure), whose medium is a gas, liquefied gas, steam, or a liquid that is flammable, explosive, toxic, corrosive, and whose maximum operating temperature is greater than or equal to its standard boiling point, and whose nominal diameter is greater than or equal to 50 mm. Except for pipes with a nominal diameter of less than 150 mm and a maximum operating pressure of less than 1.6 MPa (gauge pressure), as well as the pipes that form part of the equipment used for transporting non-toxic, non-flammable, and non-corrosive gases.
According to the latest definition above, it should be 0.1 and 50, so there is no correct answer. The question above is outdated