This standard specifies the technical requirements, inspection methods, inspection rules, marks, packaging, transportation, storage and inspection certificates of the americium 241α radiation source (hereinafter referred to as "americium α source") used in ionization smoke detectors. This standard applies to americium 241α radioactive sources for various ionization smoke detectors.
GB 12951-1996 history
2009GB 12951-2009 Americium-241 alpha sources for ionization smoke fire detectors
1996GB 12951-1996 Specification of americium-24l alpha sources for ionization smoke fire detectors