China Natural gas—Calculat GB Standards Search Result

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


	GB/T 11062-2020 Natural gas—Calculation of calorific values, density, relative density and Wobbe indices from composition 天然气发热量、密度、相对密度和沃泊指数的计算方法 - 英文版
	GB/T 30491.1-2014 Natural gas—Calculation of thermodynamic properties—Part 1: Gas phase properties for transmission and distribution applications 天然气热力学性质计算第1部分：输配气中的气相性质 - 英文版

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