Kev ntxuav cov kaus hniav bursfirst, nto tawm tsam cov siv koob siv los ntawm soaking lawv rau 30 feeb. Lub tshuaj tua kab mob yog 2% glutaraldehyde. Tom qab soaking, siv ib qho txhuam hniav me me - los ntxuav cov ntawv textured ntawm lub faus, thiab tom qab ntawd yaug nrog dej huv.