1. Umthamo womkhiqizo akufanele udlule u-25% wevolumu yebhokisi lesisetshenziswa, futhi isisekelo sesampula akufanele sidlule u-50% wendawo evundlile yendawo yokusebenza.

2. Uma usayizi wesampula ungahambisani nesigatshana sangaphambilini, imininingwane efanele kufanele icacise ukusetshenziswa kwalezi zindlela ezilandelayo:

① Igumbi lokuhlola isihlabathi nothuli lihlola izingxenye ezimele umkhiqizo, okuhlanganisa izingxenye ezifana nezicabha, iminyango yokukhipha umoya, izisekelo, izinsimbi zokuvala, njll.
② Hlola amasampuli amancane anemininingwane yedizayini efanayo njengomkhiqizo wangempela.
③ Hlola ingxenye yokuvala yomkhiqizo ngokwehlukana;

Izingxenye ezinhle zomkhiqizo, njengamatheminali namakhoyili okuqoqa, kufanele zigcinwe zisendaweni ngesikhathi sokuhlolwa;

IIgumbi lokuhlola isihlabathi nothuliisekelwe ezimeni zokusebenza zomkhiqizo. I-casing yomkhiqizo ingahlukaniswa ngezinhlobo ezimbili:

1: Ukucindezela ngaphakathi kwe-casing yomkhiqizo kungase kuhluke ekucindezelweni komkhathi wangaphandle, isibonelo, ngenxa yokuhluka komfutho womoya obangelwa imijikelezo yokushisa ngesikhathi sokusebenza.
Kumasampuli ane-Type 1 casing, wabeke ngaphakathi kwebhokisi lesisetshenziswa futhi uwafake endaweni yawo evamile yokusetshenziswa. Ibhokisi lokuhlola isihlabathi nothuli lixhunywe kupompo ye-vacuum ukuze kuqinisekiswe ukuthi ingcindezi yangaphakathi yesampula iphansi kunomfutho womoya. Ngale njongo, kufanele kunikezwe izimbobo ezifanele ku-casing. Uma sekuvele kunezimbobo zokudonsa amanzi odongeni lwesampula, ishubhu yevacuum kufanele ixhunywe kuleyo mbobo ngaphandle kwesidingo sokubhola kabusha.

Uma kunezimbobo zokukhipha amanzi ezingaphezu kweyodwa, ithubhu ye-vacuum kufanele ixhunywe kwenye yezimbobo, kanti ezinye izimbobo kufanele zivalwe ngesikhathi sokuhlolwa.

2: Umfutho womoya ngaphakathi kwesikhwama sesampula ufana nokucindezela kwangaphandle. Kumasampuli anamagobolondo oHlobo 2, wabeke ekamelweni lokuhlola futhi uwafake endaweni yawo evamile yokusetshenziswa. Zonke izimbobo ezivulekile zihlala zivulekile. Izidingo kanye nezixazululo zokubekwa kwezingcezu zokuhlola ebhokisini lemishini.
Okungenhla kukhona konke okuqukethwe ukubekwa kanye nezidingo ze-ibhokisi lokuhlola isihlabathi nothuliokwemikhiqizo yokuhlola.