Nk’ibintu bihambaye vyo gufatanya mu kwubaka, mu guhingura no mu gusanasana buri musi, uburyo bw’imisumari buragira ingaruka zitaziguye ku mutekano w’umugambi no ku bushobozi bwo gukora. Kugira ngo imisumari ikore neza, ibihugu vyashizeho ingingo ngenderwako zikomeye zo gushirwa mu ngiro, zisobanura neza ibikoresho, ingero n’imiterere y’ubuhinga.
Ku rwego mpuzamakungu, ingingo ngenderwako zo gushirwa mu ngiro kw’imisumari zishingiye ahanini ku buryo bufise ububasha nka ISO (Ishirahamwe Mpuzamakungu ry’Ivy’Imirongo Ngenderwako) na ASTM (Ishirahamwe ry’Abanyamerika ry’Igerageza n’Ibikoresho). Nk’akarorero, ISO 1481 ivuga ivyerekeye ukwihanganira ingero z’imisumari rusangi y’umutwe uzunguruka-, bisaba ko umugozi w’umugozi utarenze ±0.1mm kugira ngo ushobore guhura n’ibikoresho bifasha. ASTM F1667, ku rundi ruhande, isobanura cane cane inkomezi z’ugukomera, ubushobozi bwo gukomera, n’ubushobozi bwo guhangana n’ugusenyuka kw’imisumari y’ubwubatsi, bisaba ko imisumari ikozwe mu gicupa iguma idafise umugese-amasaha nibura 500 mu kigeragezo co gutera umunyu.
ingingo ngenderwako z’imisumari z’igihugu canje zishingiye ahanini kuri GB (Itegeko ry’Igihugu). Nk’akarorero, GB/T 349-2016, "Ordinary Round Nails," ivuga ivy’imiti y’imisumari y’icuma c’umuyagankuba, ivuga ko ivy’umuyagankuba bitegerezwa kugenzurwa hagati ya 0,08% na 0,25% kugira ngo umuntu ashike ku buringanire hagati y’ugukomera n’ugukomera. Ikindi kandi, GB/T 15824-2023 ishiraho ibisabwa vyihariye ku bijanye n’ukuntu imisumari ishobora guhangana n’ingaruka kugira ngo ishobore gushirwa mu buryo bwizigirwa muri beton canke mu giti.
Gushirwa mu ngiro kw’izo ngingo mfatirwako ntituma gusa uburyo bwo gukora ibintu buja ku rugero rumwe, ariko kandi biratuma ubuhinga butera imbere muri iyo nganda. Biciye ku kugerageza n’ugusuzuma ivyuma, abahinguzi barashobora kugenzura neza ukuntu imisumari ikomeye be n’ingene ikoreshwa. Ku bakoresha, imisumari ihuye n’izo ngingo mfatirwako iragabanya neza ingorane zo gusenyuka kw’imibumbe kandi igatuma imara igihe kirekire. Mu gihe kizoza, n’iterambere ry’ubuhinga bw’ibikoresho, ingingo mfatirwako z’imisumari zizorushiriza gutunganirizwa kugira ngo zihure n’ivyo inyubakwa zikeneye be n’imigambi y’ubuhinga bukomeye-.