
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 | UCPA 205-15 | |
| Nrụpụta Mba. | UC 205-15 | |
| Ebe obibi | PA205 | |
| Obere dayameta | d | 15/16 nke |
| Ebe mgbago anya gaa na okirikiri etiti. oche diam | h | 1-7/16 nke |
| Ogologo ụlọ | a | 3-5/16 nke |
| Ebe dị anya n'ịtinye oghere | e | 2-13/64 nke |
| Obosara ụlọ | b | 1-1/2 n'arọ |
| Nha Bolt | S | M10 |
| Omimi eri ngwunye oghere | I | 19/32 nke |
| Ogo ụkwụ ụlọ | g | 15/32 nke |
| Ogologo ụlọ | w | 2-53/64 nke |
| Obosara mgbanaka dị n'ime | B | 1.3425 n'arọ |
| Anya ihu akụkụ/ebe etiti | n | 0.563 n'arọ |
| Ibu ibu | 0,763 n'arọ | |