This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of ultraviolet gas analyzers. This standard applies to non-dispersive ultraviolet gas analyzers (hereinafter referred to as instruments) for determining the concentration of a certain component in a mixed gas, including non-dispersive ultraviolet absorption spectrum gas analyzers and ultraviolet fluorescence spectrum gas analy The ultraviolet wavelength range is 150nm~ 400 nm。