BUCHI Syncor Polyvap User Manual
Page 53
Syncore
®
Accessories
version E
51
Resistance of FPM
A: Very good resistance: FPM may be used without rest-
rictions
B: Moderate resistance: Sealing made of FPM may swell.
Sealings may generally be used, but may under some
circumstances have to be replaced after being used
several times.
C: Poor resistance: Sealing deform. The sealings of FPM
should be used only to a limited extent. We recommend
that the sealings be tested beforehand (softening or
wetting the sealing discs).
D: Very poor resistance: Sealing deform. The sealing of
FPM should not be used.
Solvent
Resistance
Acetaldehyde
D
Acetone
D
Benzene
B
Butanol
A
Chloroform
B
Diethyl ether
D
Dimethylformamide
C
Dimethylbenzene (Xylol)
A
Dioxane
C
Acetic acid
D
Acetic acid anhydride
D
Ethanol
B
Ethyl acetate
D
Hexane
A
Isobutanol
A
Isopropanol
A
Methanol
A
Methylene chloride
C
Nitrobenzene
B
Phenol
A
Propanol
A
Sulphuric acid, fuming
A
Carbon tetrachloride
A
Tetrahydrofurane
D
Toluene
A
Triethylamine
B
Trichloroacetic acid
C
Trichloroethane
A
Trifluoroacetic acid
D
Vinylidene chloride (Dichloroethylene)
B
Aqueous hydrogen bromide, saturated
A
Aqueous hydrogen chloride, saturated
B
Aqueous ammonia solution
C
Aqueous caustic soda
B
Aqueous nitric acid
B
Table 7: Resistance of the FPM sealings
5 Appendix