Ihe mkpuchi nchekwa dị elu bụ ihe mkpuchi nchekwa nke na-anaghị egbochi mmetọ ígwè, nke na-agbaso iwu nchekwa kachasị elu: ISO 17712:2013 (H). Emebere ihe mkpuchi nchekwa ndị a maka ịchekwa ibu mbupu dị oke ọnụ ahịa na igbochi nnyonye anya.
