Home / Standards / GB/T 19421.1-2003 GB/T 19421.1-2003 Test method for layered crystalline sodium disilicate — Qualitative analysis of 6-phase layered crystalline sodium disilicate — X-ray diffractometry 层状结晶二硅酸钠试验方法 6相层状结晶二硅酸钠定性分析 X射线衍射仪法 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A