Ivyuma bifatanya ni ibihimba bihambaye cane mu guhuza ibintu, kandi uburyo bwavyo buragira ico bukoze ata guca ku ruhande ku mutekano no ku kwizigirwa kw’ibikoresho. Kugira ngo ibikoresho bifatanya ibintu bibe bihuye n’ingingo mfatirwako zijanye n’ivyo, bitegerezwa gusuzumwa mu buryo burambuye biciye mu buryo butunganye bwo kubisuzuma.
Gusuzuma ukuntu umuntu asa ni intambwe ya mbere. Abagenzuzi barasuzuma n’amaso canke biciye ku kiyo co gukuraho ibintu, barasuzuma ko ata n’umwe afise utunenge nk’imivyimba, imikovu, umugese be n’ibikomere. Bibanda ku kugenzura nimba indodo zitagira agasembwa kandi zitagira ico zikoze, be n’uko inzira hagati y’umutwe n’igihimba c’umubiri igenda neza, kugira ngo ntihagire utunenge tugaragara two guhingura.
Ingero z’ingero zikoresha ibikoresho vyo gupima neza nk’ibipimo, imikorometero, n’ibipimo vy’urudodo kugira ngo umuntu asuzume mu buryo bw’ingero ibipimo vy’ingenzi vy’ugufatanya nk’umurongo, uburebure, n’ubunini bw’urudodo. Ivyo gusuzuma bitegerezwa kuba vyubahiriza cane ibishushanyo vy’imigero canke ingingo mfatirwako z’inganda (nk’ISO, DIN, na GB) kugira ngo bimenyekane ko ukwihanganira ibipimo biri mu rugero rwemewe. Ku bikoresho bidasanzwe-bifatanya, ibindi bipimo nk'uburebure bw'umutwe n'uburebure bw'umurongo navyo bitegerezwa gupimwa.
Igerageza ry’ibintu vy’ubuhinga ni intambwe nyamukuru. Igikoresho co kugerageza uburemere bw’ibintu gikoreshwa mu kugerageza uburemere bw’ibintu bifatanya n’uburemere bw’ibintu kugira ngo hasuzumwe ko ubushobozi bwaco bwo kwikorera umuzigo-buhuye n’ibisabwa vy’urugero rw’ibikoresho. Igerageza ry’ubukomezi (nk’ubukomezi bwa Rockwell canke Brinell) na ryo nyene rirakorwa kugira ngo hamenyekane ko uburyo bwo gukoresha ubushuhe bw’ibikoresho buhuye n’ingingo mfatirwako. Ku bikoresho bifatanya nk’amabouti n’amabuye, ivyigwa vy’umuvuduko-imbere y’ugushirwako canke ivyigwa vy’ugushiramwo umuvuduko-na vyo nyene birakenewe kugira ngo hasuzumwe ubushobozi bwavyo bwo gukoranya.
Igerageza rita-rishobora gusenyura ribereye ku bikorwa bisaba. Igerageza ry’ibice vy’umuyagankuba (MT) canke igerageza ry’ibice vy’umuyagankuba (PT) rikoreshwa mu kumenya imivyimba iri ku ruhande canke hafi ya-ivu; igerageza ry’amajwi (UT) canke igerageza ry’amajwi (RT) rikoreshwa mu kumenya utunenge two mu mutima, cane cane ku bikoresho bikomeye cane canke bikomeye cane.
Igerageza ry’ugusukura ku ruhande ririmwo gupima uburemere bw’igipfukisho (nk’ugutera ivyuma), igerageza ry’ugutera umunyu (uguhangana n’ugusenyuka), no gusuzuma ibimenyetso vy’ibidukikije (nk’ibirimwo hexavalent chromium) kugira ngo bimenyekane ko bishobora guhangana n’ugusenyuka kandi ko vyubahiriza amategeko.
Ubwa nyuma, amakuru yose y’igerageza akoranirizwa hamwe muri raporo, agashirwako umukono kandi yemezwa n’abagenzuzi b’uburyo. Ibintu bifise utunenge biratandukanijwe maze bagakurikirana icabiteye. Ibintu bibereye ni vyo vyonyene bishobora kwinjira mu gupfunyika canke mu gukoranya. Ivyo bikoresho bihuye n’ivyo umuntu akeneye biratuma ibikoresho bifatanya ibintu biguma bimeze neza kandi bikaba bifise umutekano mwiza.
