Hais txog 134a, muaj ob qib pharma HFA-134a thiab qib HFC{2}}a (feem ntau hu ua R134a).
Qhov txawv yog raws li nram no:
HFA Propellant/Aerosol Propellant HFA-134A yog siv rau hauv cov tshuaj tsuag tshuaj xws li:
MDIs (Medicated Measure Inhalers) tseem hu ua Medicated Aerosols lossis Asthma Sprays yog siv los kho mob hawb pob, COPD (Cov Kab Mob Hlwb Obstructive Pulmonary), thiab kab mob ua pa.
Nasal spray rau allergic rhinitis.
Ua npuas ncauj
Tshuaj pleev qhov ncauj thiab tshuaj pleev (xws li, paj hlwb rhiab heev, hniav vitality, mob nyem)
HFA-134ib qho kev hloov pauv tag nrho halogenated ozone-depleting chlorofluorocarbons CFC 11, CFC 12, thiab CFC 114 ib txwm siv rau hauv cov tshuaj txau, cov tshuaj tsis yog ozone depleting hydrofluoroalkane HFA 134a tau raug txiav tawm raws li cov ntsiab lus ntawm Montreal Protocol, kuj hu ua kws tshuaj HFA-134A (P).
Txawm li cas los xij, qib qib R134a feem ntau yog siv los ua cov tub yees, tua hluav taws, cov kuab tshuaj, thiab lwm yam.
Cov qib kev lag luam yog siv rau hauv tub yees thiab cua txias thiab lwm yam, whereas qib pharma yog siv los ua tshuaj tiv thaiv. Cov nroj tsuag thiab tshuab, cov khoom siv raw, thiab cov txheej txheem ntawm kev tsim khoom ntawm ob hom yog tib yam. Kev tsim khoom ntawm qib pharma yuav tsum tau tsim cov txheej txheem ntxiv tom qab R134a raug tsim. Qhov sib txawv ntawm ob tsuas yog theem ntawm purity, qhov purity yuav tsum tau rau qib kws tshuaj txhais tau tias rau tib neeg noj yog yam tsawg kawg nkaus 99.99 feem pua (qis theem ntawm impurities).
