The revision of GB/T10656 \"Methods for analysis of water used in boilers and cooling systems – Determination of zinc ions\", led by Wushihua Petrochemical Company, has been officially released

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The standard GB/T10656 \"Methods for analyzing boiler and cooling water – Determination of zinc ions\", revised under the leadership of Urumqi Petrochemical Company, has been officially released. Author/Source: Urumqi Petrochemical Online. Date: May 14, 2022. Clicks: 37. Recently, the standard GB/T10656 \"Methods for analyzing boiler and cooling water – Determination of zinc ions\", revised with Urumqi Petrochemical Company as the lead drafting entity, was officially released. This is another standard developed by the Wushihua Petrochemical Company’s team, following the formulation and revision of GB/T22597 \"Determination of chemical oxygen demand in recycled water – Potassium dichromate method\". The release of this standard marks a new breakthrough for Wushihua Petrochemical Company in the field of zinc ion testing. Guo Jingyu, the director of water treatment technology at the research institute, explained that during the operation of the plant’s circulating cooling water and boiler water systems, the use of zinc-containing water treatment chemicals is an effective way to prevent equipment corrosion. The concentration of zinc ions, as an important parameter in the operation of such utility systems, requires accurate and reliable measurement. “Currently, the commonly used methods for detecting zinc ions in laboratories are the zinc reagent spectrophotometry method, atomic absorption spectroscopy, and EDTA titration method. The lack of standards for the EDTA titration method leads to differences in the reagents used, the operational procedures, and the calculation methods across various laboratories, resulting in significant variations in the measurement results. This has an impact on the accuracy of zinc ion detection data; therefore, this method urgently needs to be standardized and improved. ”Guo Jingyu explained. To ensure the accuracy of the testing data, once the direction for revisions was determined, Guo Jingyu immediately established a standardization task force and led the team in carrying out the work on standard revisions with dedication. “**The process from initiating a standard, drafting it, to approving and issuing it is extremely lengthy. It requires not only the collection of various documents and materials but also hundreds or even thousands of tests, comparisons, and method validations. Each review represents a challenge, and the work often has to be restarted from scratch; this demands that everyone maintain sufficient patience and strong determination. ”Guo Jingyu said. As the saying goes, it’s hard to satisfy everyone’s tastes. After a standard is revised, all the technical specifications and operational guidelines contained within it need to be verified by the public; breadth of application and practicality are important criteria for evaluating such standards. “**Standards differ from corporate standards in that they have a greater degree of universality and practicality. Whether they are useful and whether people agree with them serve as the benchmarks for evaluating standards; if they do not yield good results in practice, then revising them is meaningless. ”Guo Jingyu said. The phase of soliciting opinions and conducting reviews during standard revision is the most challenging one; it requires not only multiple rounds of discussions and evaluations but also further verification through practical tests in various laboratories, with each step representing a significant test. “To put it simply, revising standards is like updating a ‘general recipe’ – every step and action must conform to common practices, so that everyone can prepare dishes with the same flavor using that recipe. If someone manages to create a dish with a different flavor, we need to make adjustments until the flavor is consistent. ”Guo Jingyu said. Thanks to the relentless efforts of Guo Jingyu’s team, the latest version of GB/T10656 \"Analysis Methods for Water Used in Boilers and Cooling Systems – Determination of Zinc Ions\", which took 5 years from the initial submission to its release, was officially published in 2022. The revision of this standard further standardizes and improves the methods for detecting zinc ions in circulating cooling water and boiler water, providing more scientific and straightforward testing methods for use in actual production and routine monitoring of systems. It is understood that the team is developing another new **standard** that can fill the gaps in the testing of indicators such as inorganic phosphorus in the water treatment industry, providing technical support for the research and development of water treatment agents.