MuUnited States, kusvika pakupera kwaNovember 2001, federal standard 209E (FED-STD-209E) yakashandiswa kutsanangura zvinodiwa pamakamuri akachena.Musi waMbudzi 29, 2001, zviyero izvi zvakatsiviwa nekuburitswa kwe ISO Specification 14644-1.Kazhinji, imba yakachena inoshandiswa ...
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