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1. Ready translated english version CNS Standards ( SALE mark ) and Chinese version CNS Standards, you can purchase directly in the web page; After receive your payment, we will send the CNS Standards PDF file to your Email within 1~3 days.
2. Other English version CNS Standards are not ready translated, only after get your order, then we translate them, time usually need more 3-5 days .


	CNS 15570 - English Version Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method (non-backflush) with refractive index detection 石油產品－中質蒸餾燃油芳香烴類別含量測定法[高效液相層析(非逆洗)/折射率偵檢法] - 英文版
	CNS 8839 - English Version Methods of Test for Refractive Index of Chemical Products 化學製品折射率測定法 - 英文版

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