Concering 134a, there is both pharma grade 134a and “technical grade” R 134a(industrial grade r134a).
Forskellen er nedenfor:
HFA-drivmidler / Aerosol-drivmiddel HFA -134 A & nbsp; til medicinske sprøjter inklusive:
* & nbsp;MDIs (Metered Dose Inhalers) also known as pharmaceutical aerosols or asthma sprays for the treatment of asthma, COPD (Chronic Obstructive Pulmonary Disorder) and respiratory infections
* næsespray til behandling af allergisk rhinitis
* skum spray
* orale og aktuelle spray (f.eks. nervesensibilisering, tand vitalitet, smertelempelse)
* udskift de fuldt halogenerede ozonlagsnedbrydende chlorfluorcarboner
CFC 11, CFC 12 and CFC 114
traditionelt brugt i medicinske sprayer, der udfases under betingelserne i Montreal-protokollen af de ikke - ozonlagsnedbrydende hydrofluoralkaner HFA 134a, der også kaldes Pharmaceutical HFA - 134A (P) & nbsp;
While“Technical grade” R 134a(industrial grade r134a) is predominately used as refrigerant R134a and fire extinguishing agents .It is with:
*the higher purity obtained by additional manufacturing processes specifically developed and applied to meet & nbsp;the stringent specifications set out for & nbsp;pharmaceutical grade products,
*manufacturing in dedicated facilities & nbsp;according to the current good manufacturing practice guidelines,
* høj - kvalitetskontrol ved hjælp af analysemetoder specifikt udviklet til & nbsp; screen mere end 60 urenheder i & nbsp; drivmidler i niveauer under en del & nbsp; pr. million,
* registration of the manufacturing & nbsp;processes and quality control systems according to the standards for drug & nbsp;active substances, although both Propellant Hfa (P) 134a for Inhaling and Spray Gas with DMF Certificate & nbsp;klassificeres som
exipients. & nbsp;
& nbsp; & nbsp;
