Tazama chanzo cha ISO 216

<small>Maandishi madogo</small>[[file:A_size_illustration2.svg|thumb|350px|Ugawaji wa karatasi ya ukubwa A0 hadi A9]]

'''ISO 216''' ni orodha ya vipimo sanifu iliyotolewa na [[Shirika la Kimataifa la Usanifishaji]] (ISO) kwa ajili ya fomati za [[karatasi]]. Orodha hii inafafanua fomati za karatasi za aina "A" na "B" pamoja na A4 ambayo ni ukubwa unaotumiwa zaidi duniani. Zinatumiwa kote duniani isipokuwa [[Marekani]] bado wanatumia fomati tofauti.

Fomati zote za ISO 216 (na vipimo vya kuambatana nayo ISO 217 na ISO 269) vinafuata uhusiano wa  '''1:<small><math>\sqrt{2}</math></small>''' kati ya upande mrefu na upande mfupi. Faida yake ni ukikunja karatasi hizi kwa nusu yake, hata sehemu hizi zitakuwa tena na uhusiano huohuo baina ya upande ndefu na fupi. Pia eneo la kila fomati ni nusu ya eneo la fomati kubwa zaidi.

Fomati ya kimataifa ya ISO 216 inafuata utaratibu uliofafanuliwa nchini Ujerumani tangu mwaka 1922 kwa jina la DIN 476.

== Vipimo vya karatasi za fomati za A na B chini ya ISO 216 na C chini ya ISO 269==

{| class="wikitable" style="margin-left: 0.5em; text-align: center;"
|+ '''Fomati za karatasi za ISO 216'''<br /><small>([[milimita|mm × mm]])</small>
|-
!colspan="2"| Fomati za A !!rowspan="12" style="border-top: 1px solid white; border-bottom: 1px solid white"| !!colspan="3"| Fomati za B !!rowspan="12" style="border-top: 1px solid white; border-bottom: 1px solid white"| !!colspan="3"| Fomati za C
|-
| A0 || 841 × 1189 || B0 ||1000 × 1414 || C0 || 917 × 1297
|-
| A1 || 594 ×  841 || B1 || 707 × 1000 ||  C1 || 648 ×  917
|-
| A2 || 420 ×  594 || B2 || 500 ×  707 || C2 || 458 ×  648
|-
| A3 || 297 ×  420 || B3 || 353 ×  500 || C3 || 324 ×  458
|-
| A4 || 210 ×  297 || B4 || 250 ×  353 || C4 || 229 ×  324
|-
| A5 || 148 ×  210 || B5 || 176 ×  250 || C5 || 162 ×  229
|-
| A6 || 105 ×  148 || B6 || 125 ×  176 || C6 || 114 ×  162
|-
| A7 ||  74 ×  105 || B7 ||  88 ×  125 || C7 ||  81 ×  114
|-
| A8 ||  52 ×   74 || B8 ||  62 ×   88 || C8 ||  57 ×   81
|-
| A9 ||  37 ×   52 || B9 ||  44 ×   62 || C9 ||  40 ×   57
|-
| A10||  26 ×   37 || B10||  31 ×   44 || C10 ||  28 ×   40
|}

==Marejeo==
{{Reflist}}

==Viungo vya Nje==
{{Commons category|DIN EN ISO 216}}
* [http://www.cl.cam.ac.uk/~mgk25/iso-paper.html International standard paper sizes]: ISO 216 details and [[Design rationale|rationale]]
* [http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=36631 ISO 216 at iso.org]

[[Category:Vipimo]]
[[Category:Karatasi]]