Ukumisa igumbi elihlanzekile

E-United States, kuze kube sekupheleni kukaNovemba 2001, i-federal standard 209E (FED-STD-209E) yasetshenziswa ukuze kuchazwe izidingo zamagumbi ahlanzekile. Ngomhla zingama-29 kuNovemba 2001, lawa mazinga athathelwa indawo ukushicilelwa kwe-ISO Specification 14644-1. Ngokuvamile, igumbi elihlanzekile elisetshenziselwa ukukhiqiza noma ucwaningo lwesayensi liyindawo elawulwayo enamazinga aphansi okungcola, njengothuli, ama-microbes asemoyeni, izinhlayiya ze-aerosol, ne-vapor yamakhemikhali. Ukunemba, i-cleanroom inezinga lokungcola elilawulwayo, elicaciswa inani lezinhlayiya nge-cubic meter ngayinye kusayizi wezinhlayiyana ezithile. Endaweni evamile yasemadolobheni, umoya wangaphandle uqukethe izinhlayiya eziyizigidi ezingu-35 ku-cubic meter ngayinye, ama-microns angu-0.5 ububanzi noma ngaphezulu, okuhambisana negumbi elihlanzekile le-ISO 9 elisezingeni eliphansi kakhulu lezinga legumbi elihlanzekile. Amakamelo ahlanzekile ahlukaniswa ngokuvumelana nokuhlanzeka komoya. E-US Federal Standard 209 (A kuya ku-D), inani lezinhlayiyana ezilingana noma ezinkulu kuno-0.5mm zikalwa nge-cubic foot yomoya engu-1, futhi lesi sibalo sisetshenziselwa ukuhlukanisa amagumbi ahlanzekile. Le metric nomenclature yamukelwa yinguqulo yakamuva ye-209E yezinga. I-China isebenzisa i-federal standard 209E. Izinga elisha yi-International Standards Organisation's TC 209. Womabili amazinga ahlukanisa amagumbi ahlanzekile ngokusekelwe enanini lezinhlayiya ezisemoyeni waselabhorethri. Izindinganiso zokuhlukaniswa kwegumbi elihlanzekile FS 209E kanye ne-ISO 14644-1 zidinga izilinganiso zesibalo sezinhlayiyana ezithile kanye nezibalo ukuze kuhlukaniswe izinga lokuhlanzeka kwegumbi elihlanzekile noma indawo ehlanzekile. E-United Kingdom, i-British Standard 5295 isetshenziselwa ukuhlukanisa amagumbi ahlanzekile. Leli zinga maduze lizothathelwa indawo yi-BS EN ISO 14644-1. Amakamelo ahlanzekile ahlukaniswa ngokwenombolo nobukhulu bezinhlayiya ezivunyelwe umthamo womoya ngamunye. Izinombolo ezinkulu ezifana ne-"Class 100" noma "Class 1000" zibhekisela ku-FED_STD209E, ezimele inani lezinhlayiya ezingu-0.5 mm noma usayizi omkhulu ovunyelwe nge-cubic foot ngayinye yomoya.