"Ammonium iron" CNS Standards List| Iron powder | Subsidiary Methods | Methods Measurement | Whitworth Taps | Methods Measurement | Marine Cable | Hexagon Socket | Permissible Deviations | |
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CNS 1727
2020 Edition Ammonium iron (Ⅱ) sulfate hexahydrate (reagent) 化學試藥（六水合硫酸鐵（Ⅱ）銨） |
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CNS 1722
2020 Edition Ammonium iron (Ⅲ) sulfate hexahydrate (reagent) 化學試藥（十二水合硫酸鐵（Ⅲ）銨） |
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