No no
in coating we do not req sol penetraton.
Principle of coating
Principle of tab coating is to covr the core tablet with layer of polymer material by evaporating the solution
Coatung solutuon cintain
Polymer
plastisizer
opaquants
colors etc
the is sol is aplied to warm tablets then sol evapurates leaving solid contents layer on lablet
solvent penetration is required in which stage?
Solvent penetration is a defect in tab coating
Check out this SlideShare : TABLET COATING
PAO- Polyalphaolefin is used for HEPA filter integrity test.
DOP- Dioctyl Phthalate is no longer used in this test as it is considered as fatal to human health (Cancer causing agent)
For Smoke Test (Air Flow Pattern) of HEPA filter, to generate the smoke you can use either glycerine or water fogger.
Any guideline reference?
Thanks
All above conversation is very helpful…Thnks all of …