This standard specifies the method for determining the linear expansion coefficient of flexible graphite plates. This standard applies to the determination of flexible graphite plates.
JB/T 6621-1993 history
2008JB/T 7758.5-2008 Test method for coefficient of linear expansion of flexible graphite sheets
1993JB/T 6621-1993 Method for determination of linear expansion coefficient of flexible graphite plate
JB/T 6621-1993 Method for determination of linear expansion coefficient of flexible graphite plate was changed to JB/T 7758.5-2008 Test method for coefficient of linear expansion of flexible graphite sheets.