"tetrahydrate " CNS Standards List| Method Test | Bristol board | Method Ultrasonic | Assembly tools | Method test | Method Test | Method Test | Method Test | |
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CNS 1905
2020 Edition Potassium sodium (+)–tartrate tetrahydrate (Reagent) 化學試藥（硫酸鉀） |
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CNS 1728
2020 Edition Iron (Ⅱ) chloride tetrahydrate (Reagent) 四水合氯化鐵（Ⅱ）（試藥） |
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CNS 1796
2020 Edition Manganese（Ⅱ）chloride tetrahydrate (reagent） 四水合氯化錳（Ⅱ）（試藥） |
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