Specialty Gases

Methane in Nitrogen Standard Gas

Product name	Methane in nitrogen gas standard material
Other names	Methane in nitrogen standard gas, methane in nitrogen standard material, methane in nitrogen, methane residual nitrogen, methane in nitrogen standard gas, methane in nitrogen standard gas, methane in nitrogen calibration gas, methane in nitrogen calibration gas, methane mixed gas, methane standard gas
Calculation formula	Xi=ni/n
	Xi: molar ratio of components (mol/mol)
	Ni: amount of component (mol)
	N: amount of all components in the mixed gas (mol)
Confidence factor	Confidence level 95%
Uncertainty	Subject to the standard certificate
Concentration range	Prepared according to customer requirements at the corresponding saturated vapor pressure
Preparation standard	GBT5274.12018 “Preparation of mixed gas for gas analysis calibration Part 1 Preparation of primary mixed gas by weighing method”
Filling pressure	Filling pressure is 9.5 MPa, and the lower limit of use pressure is 0.5 MPa
Included information	Certificate of conformity + fixed value certificate
Packing specifications	8L/4L/2L/1L
Gas cylinder standard	Implementation standard “Technical Regulations for Gas Cylinder Safety (TSG23-2021)”