
Usoro nke UC na-ezo aka na ahaziri ahazi, ejiri ọtụtụ ebe Ohiri isi ngọngọ nkeji bọọlụ nwere aka nkwụnye aka. N'ime isi ha bụ bọọlụ nwere oghere dị omimi nke nwere a dayameta mpụta okirikiri (SPB) emebere ka ọ dabara n'ime oghere okirikiri dabara adaba nke ụlọ nkedo. Na-akwado metric akụkụ, A na-ahazi usoro isiokwu a maka ngwa mmepụta ihe na-achọ ikike ibu dị elu, nrụnye kwụ ọtọ, na arụmọrụ a pụrụ ịdabere na ya.
| ISO | UCPH212-39 | |
| Nrụpụta Mba. | UC212-39 | |
| Ebe obibi | PH212 | |
| Obere dayameta | d | 2-7/16 nke |
| Ebe mgbago anya gaa na okirikiri etiti. oche diam | h | 5-1/8 n'arọ |
| Ogologo ụlọ | a | 9-1/2 n'arọ |
| Ebe dị anya n'ịtinye oghere | e | 7-1/4 nke anụ ọhịa |
| Obosara ụlọ | b | 3-11/32 nke |
| Nha Bolt | S | 5/8 |
| Ntụnye oghere oghere | S1 | 25/32 nke |
| Ogologo oghere nkwụnye | S2 | 29/32 nke |
| Ogo ụkwụ ụlọ | g | 63/64 nke |
| Ogologo ụlọ | w | 7-3/4 nke anụ ọhịa |
| Obosara mgbanaka dị n'ime | B | 2.563 n'arọ |
| Anya ihu akụkụ/ebe etiti | n | 1 in |
| Ibu ibu | 4,92 n'arọ | |