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

| Office Machines | Method chemical | Aluminium Potassium | Feeler Gages | Method test | Methods test | Information technology | Method test |
K-Chemical Industry
CNS 6837    2019 Edition
Method of Test for Traces of Thiophene in Benzene Using Isatin and Spectrophotometry
苯中微量噻吩檢驗法（分光光度計法）

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