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See Chinese contents: GB/T 14571.4-2022 GB/T 14571.4-2022: Test method of ethylene glycol for industrial use -- Part 4：Determination of ultraviolet transmittance -- Ultraviolet spectrophotometric method
This document specifies the method for determination of the UV light transmittance of ethylene glycol for industrial use in the wavelength range of 200nm~350nm. This document is applicable to the determination of the UV light transmittance of ethylene glycol for industrial use.
