Home / Standards / MT 28-1994 MT 28-1994 Abolished 光干涉式甲烷测定器 Standard Type MT28 ICS N/A CCS N/A Status Abolished Issue Date 1995-05-12 Implementation 1994-12-01 Centralized Committee 国家矿山安全监察局 Issuing Authority 国家矿山安全监察局