2005JB/T 7758.3-2005 Mensuration for sulfur-content of flexible graphite sheets
1993JB/T 6623-1993 Method for Determination of Sulfur Content in Flexible Graphite Plates
JB/T 6623-1993 Method for Determination of Sulfur Content in Flexible Graphite Plates was changed to JB/T 7758.3-2005 Mensuration for sulfur-content of flexible graphite sheets.