Seeking the enterprise standards for electronic-grade methyl acetate

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Electron-grade methyl acetate is primarily used in the production of chips for industrial robots and various chips used in electric vehicles, as well as in the cleaning processes involved in various wafer manufacturing processes. It is a high-quality solvent for which extremely strict standards are imposed regarding purity and impurity levels – such as the content of iron carbonyl, trace amounts of water, other acidic substances, and inorganic particles. The requirements for certain impurities are even at the ppb level. At present, only a few companies in the country are capable of producing it, and there are no unified **quality standards; only the standards set by the respective manufacturing companies exist. I have a question for everyone: does anyone have the “quality standards” for domestic electronic-grade methyl acetate products? If you have one, please send it to me so I can take a look and learn from it. Our company is also planning to undertake a project to produce \"electronic-grade methyl acetate\" by using \"industrial-grade methyl acetate\" and undergoing a series of purification processes. Currently, technical standards related to “dust-free laboratories” are under investigation; those who are aware of it would be kindly asked to share information on the progress in this area in China. Thank you!