United States, ho fihlela bofelong ba November 2001, federal standard 209E (FED-STD-209E) e ile ea sebelisoa ho hlalosa litlhoko tsa likamore tse hloekileng. Ka la 29 Pulungoana 2001, litekanyetso tsena li ile tsa nkeloa sebaka ke khatiso ea ISO Specification 14644-1. Ka tloaelo, kamore e hloekileng e sebelisoang ...
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