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Chinese National Standards
中華民國國家標準
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"Nitrates" CNS Standards List

| Chain Pipe | Nomenclature commercial | Iron ores－Methods | Conversion tables | Emission Spectroscopic | Cast iron | Urine absorbing | Format information |
K-Chemical Industry
CNS 8991    2020 Edition
Chemical Reagent(Ammonium Salt Nitrates and Total Nitrogen Determination)
化學試藥（銨盬、硝酸盬及總氮量之檢驗）

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