E1119-97(2002) 工业级乙二醇 Standard Specification for Industrial Grade Ethylene Glycol E1177-03a 防冻级乙二醇 Standard Specification for Engine Coolant Grade Ethylene Glycol E2193-02a 单乙二醇紫外线透射率的测试方法(紫外线光谱光度测试方法) Standard Test Method for Ultraviolet Transmittance of Monoethylene Glycol (Ultraviolet Spectrophotometric Method)