Electronic Grade Sulfuric Acid Standard
2023-09-08
Electronic grade sulfuric acid is divided into 5 grades according to its purity: E1 grade, E2 grade, E3 grade, E4 grade and E5. Its technical indexes include 35 items, including sulfuric acid content, appearance and chroma, number of particles with different particle sizes, chloride, nitrate, phosphate, ammonium salt, reduced potassium permanganate substance and metal impurities. See GB/41881-2022 for specific standards. If you are interested in colleagues who need the original standard text, please call 13952058396 Wu of Jiaming.
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