GB/T 23249-2009
Coalbed gas content measurement methods in geological exploration period
GB/T 23250-2009
The direct method of determining coalbed gas content in the mine
NB/T 11469-2023
AQ 1046-2007
Coalbed gas content measurement methods in geologiccal exploration period
AQ 1066-2008
The direct method of determining coalbed gas content in the mine
AQ 1047-2007
The direct measuring method of the coal seam gas pressure in mine
NB/T 10124-2018
MT/T 638-1996
NB/T 11329-2023
20243623-T-603
Method for determination of coal seam gas content in underground coal mines Equal volumetric variable pressure method
T/QGCML 332-2022
ASTM D4808-23
Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy
ASTM D4808-17
Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy
ASTM D4808-01(2012)
Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy
ASTM D4808-01(2006)
Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy
ASTM D4808-98
Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy
ASTM D4808-01
Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy