General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 42515-2023
Introduction
The GB/T 42515-2023 standard provides a method for determining the acid-insoluble content in metal powders, specifically iron, copper, tin, and bronze powders. This standard is essential for assessing the quality and purity of these metal powders, as the acid-insoluble content can affect their performance in various applications.
The acid-insoluble content refers to the amount of impurities or foreign substances present in the metal powders that cannot be dissolved by acid. These impurities can include oxides, non-metallic inclusions, and other contaminants that may affect the properties and performance of the metal powders.
The determination of acid-insoluble content is carried out by subjecting the metal powders to a series of acid treatments and filtration processes. The acid-soluble portion is dissolved and removed, leaving behind the acid-insoluble fraction. The remaining residue is then analyzed to determine its weight percentage, which indicates the acid-insoluble content.
By following the guidelines provided in the GB/T 42515-2023 standard, manufacturers and users of metal powders can ensure that the acid-insoluble content is within the specified limits. This helps to guarantee the quality and reliability of the metal powders for various industries, including automotive, aerospace, electronics, and construction.
In conclusion, the GB/T 42515-2023 standard plays a crucial role in determining the acid-insoluble content in iron, copper, tin, and bronze powders. This standard allows for the evaluation of the purity and quality of these metal powders, ensuring their suitability for specific applications.
GB/T 42515-2023 history
2023GB/T 42515-2023 Determination of acid-insoluble content in metal powders iron, copper, tin and bronze powders