GB/T 223.6-1994 provides a neutralized Titrimetric method for the determination of boron content in steel and alloys. This standard is suitable for all kinds of steel and alloy samples, and describes the principle of determining boron content based on acid-base neutralizing reaction. Specify the required instruments such as Burette, etc., and reagents. Detail sample pretreatment, including dissolving the sample and converting the boron element into a titratable state, and then carry out the neutralized titration operation. Clarify the selection of indicators, titration speed control and endpoint judgment methods in the titration process. This standard can accurately determine the boron content in steel and alloys, providing key data support for steel product quality control and performance optimization.