Yiziphi ifomethi ye amashidi?

Xxi leminyaka ubizwa kufanele kubhekwe isikhathi kolwazi nobuchwepheshe. Nsuku zonke emhlabeni omningi idatha adlulisiwe.

Ingxenye enkulu yalesi lemali yakhiwa idatha kwikhompyutha futhi izinto, kodwa noma kunjalo ezimweni eziningi wakhuthaza ukusetshenziswa kwale abathwali iphepha ngezinhloso ngenhla. Kulesi sici lakhiwe namazinga omhlaba echaza kangcono zonke evame ukusetshenziswa usayizi wephepha. Njengoba ephepheni ngalinye has a usayizi kahle ichazwe, umthetho uye futhi bahlakulele izindinganiso isimo esihambelanayo, okuyinto libala zonke izakhiwo ishidi.

umqondo

Okwamanje, izinhlelo ezimbili baziwa, sokunquma Usayizi iphepha: namazinga omhlaba kanye North American. Ngamunye wabo inezici yaso ehlukile.

kwamazinga amazwe ngamazwe

Kususelwa ohlelweni imethrikhi owaziwa angakahleleki. Imibhalo yokuqala iphepha ishidi endaweni lingana kuze fike imitha square (A0) kwavunyelwana. Zonke izinhlelo ezifana nezinye nezakhiwo amashidi Ayekulungele ngokungeza okuthiwa ikhodi yomthombo nengxenye. Phela, wonke umuntu uyazi ukuthi A1 esingaphansi kwesigamu A0; A2 - kabili njengoba kunabayeni A1 usayizi nokunye. Isho ubude nobubanzi amagugu ngayinye ifomethi A0 - obuphelele 1189 mm, nobubanzi 841 mm; A1 - 841h594; A2 - 594h420; A3 - 420h297; A4 - 297h210; A5 - 210h148; A6 - 148x105.

Kubalulekile futhi ukukhumbula ukuthi kwamazinga amazwe ngamazwe (GOST "Usayizi ishidi") kuhlanganisa eziningi uchungechunge A, B no-C Ngayinye yalezi isetshenziswa emkhakheni wabo womsebenzi womuntu. Ngokwesibonelo, A libhekene uchungechunge letingemasayizi lahlukene edging iphepha plain. Liphinde kabanzi njengesisekelo imibhalo ehhovisi; ukwenziwa izimpahla ahlanzekile, kanye ekukhiqizeni izincwadi.

Ishidi nezakhiwo ochungechungeni yifa ephelele kunayo niche, okuyinto obangela ukukhiqizwa amaphosta, amaflaya, nezincwadi zokungena kwamanye amazwe futhi konvertov.Bumazhnye amashidi kulolu chungechunge kuyizinto ezivamile okungenani ezweni lanamuhla, ngoba kuyaqabukela esetshenziswa kwezamabhizinisi. Noma kunjalo format amashidi (GOST 2.301-63) B5 nge Ubukhulu 176h250 mm kungatholakala kaningi, ngoba asetshenziselwa ukushicilela izindlu ukuyiprinta izincwadi.

C uchungechunge yakhelwe ukwenziwa ezimvilophini, lapho kamuva uzobe iphepha etshaliwe osayizi Series A. engavamile kulesi sigaba angabhekwa ukuthi ubukhulu ishidi C Series kuyoba ilingane kusho weJiyomethri iphepha lodonga osayizi A no B inombolo efanayo. Ngakho siyabona ukuthi ishidi nezakhiwo C4 kuyoba lithé ukuba likhudlwana kune-A4, kodwa ezincane kuno B4. Lokhu kwenziwa ukuqinisekisa ukuthi idokhumenti iphepha ka-A4 zingabekwa imvilophu format C4, nokuthi, esikhundleni salokho, ibe nesisindo esikhudlwana ifolda B4.

A North American ejwayelekile

Leli phephandaba lokhu usayizi asivamile ukubonwa ensimini ezwe elaliyi-USSR. Izakhiwo amashidi yalolu hlobo kuchazwa yi-American National Standards Institute, kangcono aziwa emelela ANSI. Nokho, izinkampani, imisebenzi yansuku zonke axhunyiwe nge izinhlangano zaleli zwekazi American, ngezinye izikhathi ungase ubone ubukhulu Incwadi. Kubalulekile ukwazi ukuthi noma amakhasi amaphepha lokhu usayizi kukhona izilinganiso zikazwelonke, hhayi kuphela e-US, kodwa eMexico, Canada, ePhilippines, kanye eziningi emazweni zaleli zwekazi South American.