Gas pre-concentration
standards	HJ759 and other VOCs, PAMS and other standards
Electronic refrigeration	GCC600P
Liquid nitrogen refrigeration	GCC600L
Automatic sampling	ASP616
Air bag cleaning	ABC620
Sampling container	Silanized airless bottle
Thermal desorption, pre-concentration dual use	STD660E

Organic sulfur gas pre-concentration
Standards	Organic sulfur, hydrogen sulfide HJ1078、GB14678 and other standards
Electronic refrigeration	GCC600P
Liquid nitrogen refrigeration	GCC600L
Automatic sampling	ASP616
Air bag cleaning	ABC620
Sampling container	Silanized airless bottle

A variety of configuration methods to meet different analysis needs
Work demands	Ambient air	Fixed pollution source exhaust	Trace sulfide analysis	Ambient air + fixed pollution source exhaust gas
Features	Low concentration, high moisture content	high concentration, high particulate matter and moisture content	easily soluble in water	multiple factors
Sampling volume	large	small	large	large/small
Preconcentrator	GCC600P/GCC610P	GCC600P/GCC610P	GCC600P/GCC610P	GCC620P
Automatic sampling	ASP616/Optional	ASP616/Optional	ASP616/Optional	ASP616
Sampling container	Summa tank/silanized airless bottle	silanized airless bottle	Air bag/silanized airless bottle	Optional
Diluter	Static diluter SGDF10/optional dynamic module
cleaning instrument	Optional cleaning instrument	/	ABC620 air bag cleaning machine	Optional