Home / Standards / GB/T 24491-2009 GB/T 24491-2009 Active Multi-walled carbon nanotubes 多壁碳纳米管 Standard Type GBT ICS 59.100.20 CCS G13 Status 现行 Issue Date 2009-10-30 Implementation 2010-06-01 Responsible Dept 中国科学院 Drafting Unit N/A