"chromometer " CNS Standards List| Classification labelling | Couplings Underfloor | Plastics − | Nominal Dimensions | Basic Environmental | Roller ball | Rubber Hoses | Open Systems | |
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CNS 1220
2020 Edition Method of test for saybolt color of petroleum products (Saybolt chromometer method) 石油產品賽氏顏色試驗法(賽氏比色計法) |
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