Household combustible gas detectors (HS: 9027100090); - Gas or smoke analysis apparatus (HS 902710). Fire protection (ICS 13.220.20)
National Standard of the P.R.C., Combustible Gas Detectors－Part 2：Household Combustible Gas Detectors (32 page(s), in Chinese)
This standard specifies requirements, tests, inspection rules and markings of household combustible gas detectors. This standard applies to detectors used in home environment detecting methane, propane and carbon monoxide.