Ibikurikira nintangiriro irambuye kubyiza byurupapuro rwicyuma: 1. Ibigaragara ni byiza kandi bisukuye, kandi imiterere yumvikana ifite gride idasanzwe.2. Kwishyiriraho ni bidahenze, kandi urupapuro rwo hejuru rwometseho icyuma ruzengurutse umuyoboro wogukingira, ugurishwa nuwabikoze, hamwe nu mwanya muto wo kwishyiriraho na node nke;3. Imbaraga nziza zo kwikuramo no gukomera;4. Uburebure bwurukuta burashobora gutoranywa murwego runini;5. Kurwanya ruswa ikomeye, ibereye ubwoko bwose bwa alkali ikomeye, igihu cya alkali nibindi bidukikije byangirika;6. Ibisobanuro na moderi birashobora gutegurwa ukurikije amabwiriza yabakiriya na gahunda yo gushushanya umwuga;7. Kurwanya ultraviolet urumuri, igihe cyo gusaba hanze yubusa hanze ni imyaka 15, kandi irashobora kugera kumyaka 30 mubyumba;8. Inzira yo kugereranya ibicuruzwa ni ndende, kandi ibice byose birasanzwe, bizigama ibikoresho fatizo, bifasha kubika kandi bigabanya igihe cyo gutanga;9. Gutunganya imiyoboro yumuyaga ifata imiterere ikomeza izenguruka, ifite ibyiza byo gukomera, gukomera no kutangirika.