[团体标准] T/CAPS 01-2021 健康饮用水水质
[国外标准] SAE J164-1997 RADIATOR CAPS AND FILLER NECKS
[国外标准] JIS S6060-1996 Caps for writing and marking instruments intended for use by children up to 14 years
[国外标准] JIS Z 1607：2003 Metal caps and nozzles