Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: C dzakatevedzana inowanzoshandiswa nokuda mahamvuropu uye rinorondedzerwa ISO 269. Nzvimbo yemapepa eC series ndiyo geometric yepakati yenzvimbo dzemapepa eA neB akateedzana enhamba imwechete; semuenzaniso, nzvimbo yepepa reC4 ndiyo geometric yepakati yenzvimbo dzepepa reA4 uye pepa reB4. Ikoku kunoreva kuti C4 yakakura zvishoma kupfuura A4, uye duku zvishoma kupfuura B4. Kushandiswa kwokuita ikoku ndekwokuti tsamba yakanyorwa papepa reA4 inokwana mukati mehamvuropu yeC4, uye zvose zviri zviviri pepa reA4 neC4 zvinokwana mukati mehamvuropu yeB4.  Mubvunzo: Ndingawana kupi tsanangudzo yeC Series
mu ISO 269