Guhitamo hagati ya polyester igororotse hamwe na nylon igororotse ntabwo ari ikibazo cyuko umwe aba '' mwiza 'kurusha undi - biterwa rwose nibidukikije. Ibikoresho byombi bisangiye imipaka yumurimo hamwe nubushyuhe (-40 ° C kugeza 100 ° C) munsi ya EN 1492-1, ariko biratandukanye cyane muburyo bwo kuramba, kurwanya imiti, no guhangana nubushuhe. Nylon irambura 6-10% kumutwaro wagenwe kandi irwanya alkalis ariko irimburwa na acide. Polyester irambuye 3-4% gusa kandi irwanya aside ariko yangizwa na alkalis. Aka gatabo gatanga igereranya rirambuye kugirango bafashe injeniyeri hamwe nababigize umwuga bahitamo ibikoresho byiza bya shitingi kubikorwa byabo byihariye.
Kumenya igihe cyo gusimbuza imigozi iringaniye nibyingenzi mukurinda umutekano no kubahiriza amabwiriza. Inganda zinganda ASME B30.9 na EN 1492-1 zisobanura ibyiciro bibiri byubugenzuzi - kenshi (burimunsi cyangwa mbere yo gukoreshwa) nigihe cyigihe (buri mwaka cyangwa igice cyumwaka) - buri kintu gifite ibipimo byihariye byo kumenya igihe umugozi ugomba gukurwa muri serivisi. Aka gatabo gasobanura itandukaniro riri hagati yubugenzuzi bwigihe kandi burigihe, butanga urutonde rurambuye kuri buri, kandi rugaragaza ibipimo byizabukuru bitera gusimbuza umugozi. Kubashinzwe kugenzura ibicuruzwa, abashinzwe umutekano, nababikora, iyi ni inyandiko ifatika yo kubika ibarura ryiza.
Umuhengeri uringaniye nturenze guterura umutwaro gusa - irawurinda. Ubugari, buringaniye bwurubuga rugabanya uburemere bwumutwaro ahantu hanini, bigabanya cyane umuvuduko kumwanya uwariwo wose. Iri ni ihame shingiro rya fiziki inyuma yinyuma: Umuvuduko = Imbaraga ÷ Agace. Mugukomeza aho uhurira, ibice bigabanije bigabanya ibyago byo kwangirika kwubutaka, amenyo, no kumenagura - bigatuma bahitamo guterura ibikoresho byoroshye, byuzuye, cyangwa byangiritse byoroshye. Aka gatabo gasobanura ibya fiziki yo gukwirakwiza igitutu, kugereranya imirongo iringaniye hamwe nibindi bisubizo byo guterura, kandi bitanga ubuyobozi bufatika bwo guhitamo ubugari bwiburyo bwiburyo bwa porogaramu yawe.
Itegeko rya 1/10 ni igipimo cyoroshye ariko gikomeye cyo gukukuruka kugirango ushireho ibice: iyo kwambara nabi bigabanya ubugari bwurubuga kuri 1/10 cyangwa birenga, umugozi ugomba gukurwa muri serivisi. Iri tegeko ryasobanuwe muri EN 1492-1 kandi ryemewe na ASME B30.9 nkikimenyetso cyingenzi cyerekana kwambara cyane. Aka gatabo gasobanura icyo itegeko rya 1/10 risobanura, uburyo bwo gupima ubugari bwurubuga neza, impamvu iyi mbuga yatoranijwe, nuburyo bwo kuyishyira mubikorwa ubugenzuzi bwa buri munsi. Kubashinzwe kugenzura abashinzwe umutekano ninzobere mu bijyanye n’umutekano, gusobanukirwa iri tegeko ryoroshye birashobora gukumira ikoreshwa ryimyenda yambarwa.