Standards Development

Scope

This document specifies the principle, test procedure, precision and test report of the method for the determination of trace metal element content in graphite materials.

This document applies to the testing of trace metals (e.g. nickel, cobalt, iron, copper, zinc, manganese and chromium) in graphite materials.

Purpose

As an important non-metallic mineral material, graphite has a wide range of applications, including metallurgy, chemical engineering, machinery, electronics and other industries. However, the question of whether graphite products will introduce metallic elements has been the focus of attention in the industry. And the requirements for the content of metal elements in graphite vary from field to field. For example, in the field of battery manufacturing, graphite as an anode material has strict restrictions on the content of metal elements, which may affect the performance and safety of the battery.

 To avoid excessive metal element content in graphite products, purity management is particularly important. On the one hand, manufacturers need to strictly control each link in the manufacturing process, optimise equipment configuration and processing technology, and reduce the introduction of metal elements. On the other hand, enterprises should also strengthen the quality inspection and control to ensure that the metal element content of graphite products meets the relevant standards and customer requirements.

The significance of graphite testing for trace metal element content is mainly reflected in the following aspects:

1. Determining the quality and purity of graphite: By measuring the content of trace metal elements in graphite, the quality and purity of graphite can be determined, thereby ensuring the quality and stability of the product.

2. Research on the properties and applications of graphite: The content of trace metal elements has a significant impact on the properties and applications of graphite. By testing the content of these elements, the potential applications of graphite in different fields can be studied, promoting the development of the graphite industry.

3. Quality control and performance evaluation: Element content testing is one of the core contents of graphite composition analysis, which is directly related to the quality control and performance evaluation of graphite materials. For example, trace elements such as aluminum, barium, calcium, etc. have a certain impact on the electrical resistivity, oxidation resistance, corrosion resistance, and other properties of high-purity graphite, so they need to be controlled within a certain range.

 Therefore, by measuring the content of trace elements in graphite, the properties and applications of graphite can be studied, the potential applications of graphite in different fields can be explored, and the development of the graphite industry can be promoted.