"O Tolidine" CNS Standards List| Method Test | Thioglycollic Acid | Knife File | Hydrochloric acid | Micrometer Heads | Measuring Method | Aluminium Alloy | Shore Hardness | |
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CNS 2027
2020 Edition O-Tolidine 化學試藥（３，3 ′–二甲基聯苯胺） |
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CNS 13255
2018 Edition O-Tolidine Dihydrochloride 3, 3'-Dimethylbenzidine Dihydrochloride 二氫氯化鄰聯甲苯胺（試藥） |
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