ISO 1179-4 qhia txog qhov ntev, kev ua haujlwm kawm thiab cov txheej txheem kev xeem rau kev kawm xaus nrog ISO 228-1 threads thiab hlau-hlau-hlau rau kev siv xwb. Cov tshev no yuav tsum tsis txhob siv rau cov ntaub ntawv fais fab ntawm lub tshuab tsis muaj zog.
NQI xaus raws li qhov no ntawm ISO 1179 yuav raug siv rau kev ua haujlwm kom txog 40 MPa (400 bar) rau S series, mus txog 25 MPa (250 bar) rau L series, thiab mus txog 10 MPa (100 bar ) rau qhov LL series. Qhov tso cai ua hauj lwm siab yog nyob ntawm qhov loj me, cov ntaub ntawv, kev tsim, kev ua haujlwm, daim ntawv thov, thiab lwm yam.
Kev ua tiav ntawm cov lus qhia hauv qhov chaw hauv ISO 1179 tsis tau lees tias qhov kev ua tau zoo. Txhua lub chaw ua haujlwm yuav tsum ua raws li cov lus qhia hauv ntu ntawm ISO 1179 thiaj li ua kom ntseeg tau tias cov khoom tau ua rau qhov no ntawm ISO 1179 yog ua raws li qhov kev ua tau zoo.
CEEB TOOM 1 Qhov no ntawm ISO 1179 siv rau cov sib txuas lus hauv ISO 8434-1 thiab ISO 8434-2.
CEEB TOOM 2 Kev qhia txog qhov no ntawm ISO 1179 muab tswv yim rau cov chaw nres nkoj thiab kev kawm sab hnub poob los siv rau cov qauv tsim tshiab hauv hydraulic thiab pneumatic kua fais fab.
