Izihlangu zokhuseleko (izihlangu zokhuseleko lwabasebenzi) imigangatho yokutyibilika
Ngokwenyathelo le-cen/tc161, izixhobo zokuzikhusela zobuqu, izixhobo zokhuseleko (iso/tc94) kunye ne-SC3 zivumelana ngokudibeneyo ukuba: umgangatho we Izihlangu zoKhuseleko Kwizixhobo zokuzikhusela zomntu, i-EN ISO 20345:2004, indlela yovavanyo lokungatyibiliki isebenzisa umgangatho we-ISO 13287:2006, kwaye inombolo yomgangatho wokuqala iguqulwe yaba yi-EN ISO 20345:2004/a1:2007. Imeko yovavanyo lokutyibilika kulo mgangatho kuvavanyo lokutyibilika phakathi kojongano lwesisombululo se-sodium dodecyl sulfate kunye nojongano lwe-glycerol yepleyiti yesinyithi. Eyokuqala inokuphawulwa njenge-SRA xa uvavanyo ludlula, kwaye eyokugqibela inokuphawulwa ngovavanyo. Kwi-SRB, zombini iimvavanyo zinokuphawulwa njenge-Src.
Umgangatho ohlaziyiweyo uyalela uvavanyo olubalulekileyo lwelabhoratri ezimbini ukuvavanya ukusebenza kwezihlangu. Eyokuqala ilinganisa iindawo ezixineneyo kusetyenziswa isisombululo se-sodium dodecyl sulfate—i-surfactant eqhelekileyo efumaneka kwiindawo zokucoca izimboni—ukuze imele iindawo ezityibilikayo, ezingcoliswe yisepha. Izihlangu ezidlula olu vavanyo zifumana udidi lwe-SRA. Uvavanyo lwesibini lusebenzisa ipleyiti yentsimbi egqunywe yi-glycerol ukuphinda iingozi ezifana nokuchitheka kweoyile okanye igrisi; iimodeli ezoyisa olu celomngeni zifumana isiqinisekiso se-SRB. Iimveliso ezanelisa zombini uvavanyo oluqatha zifikelela kuvavanyo oluphezulu lwe-SRC, olubonisa ukumelana okupheleleyo kokutyibilika kwiimeko ezahlukeneyo eziyingozi.
Olu hlengahlengiso lujongana nomsantsa obalulekileyo kukhuseleko emsebenzini. Iziganeko zokutyibilika nokuwa zihlala zingunobangela ophambili wokulimala kwemizi-mveliso, ngakumbi kumacandelo afana nokwakha, ukuvelisa, kunye nokucubungula ukutya apho umphezulu uhlala utyhileka kulwelo okanye izinto zokuthambisa. Ngokufuna uvavanyo oluchanekileyo noluphindaphindwayo phantsi kweemeko ezilawulwayo, inkqubo entsha iqinisekisa Izihlangu zoKhuseleko inika amandla okubambelela athembekileyo xa abasebenzi behamba kwiindawo ezinobungozi obukhulu. Abavelisi ngoku kufuneka bayile iziseko zangaphandle ezigcina ukubambelela kwiindawo ezimanzi ezinyangiweyo ngamakhemikhali kunye neziseko ezinamafutha eziqinileyo—inkqubela phambili ebalulekileyo kwezobuchwepheshe ukusuka kuvavanyo lwangaphambili lwemeko enye.
Inkqubo yokubhala iilebheli ye-SRA/SRB/SRC ivumela abaqeshi ukuba bakhethe izihlangu ezenzelwe iingozi ezithile emsebenzini, ngelixa abasebenzi befumana ukubonakala okucacileyo kwizakhono zokukhusela. Njengoko uthungelwano lweenkonzo zehlabathi lusebenzisa le migangatho imanyeneyo, kulindeleke ukuba ukuhambelana kwamazwe ngamazwe ekuthobeleni ukhuseleko kuqine, nto leyo ekhuthaza iindlela zoshishino ezikhuselekileyo kwihlabathi liphela.
