GB/T 24190-2009 stipulates that the Karl Fischer Titrimetric method is used to determine the content of synthetic water in iron ore, which is suitable for all kinds of iron ore samples. Based on the principle of quantitative reaction between Karl Fischer reagent and water, after the iron ore Sampling Handling, the synthetic water is released and reacted with Karl Fischer reagent, and the synthetic water content is calculated by measurement of the consumption of the reagent. The standard specifies the required instruments, such as Karl Fischer Titrator, etc., and specifies the preparation of reagents. Detailed description of Sample Handling steps, including sample crushing, weighing and reaction condition control. Standardized titration operation process, according to this standard, the content of iron ore synthetic water can be accurately determined, providing key data for ore mass evaluation and iron and steel smelting process adjustment.