2019GB/T 7991.7-2019 Test method of viterous and porcelain enamels—Part 7:Determination of coefficient of mean lincar thermal expansion
2011GB/T 25144-2010 Method for determination of average linear thermal expansion coefficient of glass-lined glaze
GB/T 25144-2010 Method for determination of average linear thermal expansion coefficient of glass-lined glaze was changed to GB/T 7991.7-2019 Test method of viterous and porcelain enamels—Part 7:Determination of coefficient of mean lincar thermal expansion.