Recently, I learned from the official website of the International Organization for Standardization (ISO) that ISO/TR 4340:2022 Water aggressiveness evaluation and optimized lining choice “Water aggressiveness evaluation and optimized lining choice” drafted by China was officially approved and released.
ISO/TR 4340:2022 was proposed and approved by my country in 2019. The DTR voting will be completed in 2021. It will be officially published in the form of a technical report on the 3rd of this month. Full support from Hebei University of Science and Technology and the Metallurgical Industry Information Standards Research Institute, a domestic technical counterpart. This technical report is the first technical report formulated by the ISO/TC5/SC2 Ferrous Metal Pipe and Metal Fittings Technical Committee/Cast Iron Pipe, Fittings and Connections Sub-Technical Committee, and is also the output of the special subject of innovation management of the State Administration for Market Regulation.
Water quality has always been a key topic of concern, and the interaction between water quality and water pipelines is also a key research topic for pipeline scientists and engineers. Ductile iron pipe is one of the mainstream pipes for water delivery. How to carry out reasonable and effective internal corrosion protection is an important aspect to effectively ensure the life of the pipeline and the quality of water delivery. During the development of ISO/TR 4340, a questionnaire survey was conducted on major international ductile iron pipe research institutions and major manufacturers. Recommendations for the evaluation of ductile iron pipes.
The release of ISO/TR 4340:2022 will help pipeline users and corrosion protection engineers to better evaluate and understand the characteristics of conveyed water and the interaction with related materials, determine reasonable and effective internal corrosion protection schemes and formulate related water treatment. measures and other aspects have important guiding significance. Especially in the context of “double carbon”, it has positive significance for ensuring the long-term service life of ductile iron pipes and reducing maintenance costs. The implementation and completion of the project is also another important breakthrough of the international standards team of Xinxing Casting Pipe, which strengthens the confidence of local enterprises to stand firm in the core circle of standards and grasp the right to speak.
As the domestic technical counterpart of ISO/TC5/SC2 “Ferrous Metal Pipes and Metal Fittings/Cast Iron Pipes, Fittings and Connectors” and the secretariat undertaking unit of SAC/TC183/SC9 “Cast Iron Pipe Sub-Committee of National Steel Standardization Technical Committee”, The Metallurgical Industry Information Standards Institute will continue to build a platform for domestic cast iron pipe experts to communicate with international organizations, organize domestic expert teams to actively participate in the international standardization work in the field of cast iron pipes, and export more Chinese wisdom to the International Organization for Standardization in the field of cast iron pipes. At the same time, it provides more professional services for industry enterprises to understand the development direction of international standards in the field of cast iron pipes, participate in the activities of the ISO International Organization for Standardization and carry out the formulation and revision of international standards, and help international standardization activities to lead the high-quality development of my country’s cast iron pipe industry. Contribute to the international status in the field of cast iron pipes.