GB/T 12689.1-2010 《Methods for chemical analysis of zinc and zinc alloys - Part 1: Determination of aluminum content - Chromazurol S-polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry, Chromeazurol S spectrophotometric method and EDTA titrimetry》 Related products

GB/T 1 2689.1 - 2010 specifies the determination method of aluminum content in zinc and zinc alloys, which is applicable to all kinds of zinc and zinc alloy products. Provide chrome azure S-polyethylene glycol octylphenyl ether-hexadecyl pyridine bromide Spectrophotometric method, spec-trophotometry, CAS Spectrophotometric method, spec-trophotometry and EDTA Titrimetric method. Spectrophotometric method, spec-trophotometry is based on a specific color reaction, and the amount of aluminum is measured by measurement Absorbance; EDTA Titrimetric method is determined by EDTA complexation reaction with aluminum ions. The standard specifies the equipment and specifies the preparation of reagents. Describe the Sample Handling steps in detail, and standardize the operation procedures of each method. According to this standard, the aluminum content can be accurately determined, providing key data for the quality control of zinc and zinc alloys.