Buchi Syncor Polyvap Manual de usuario descargar pdf (Pagina 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

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Buchi Syncor Polyvap Manual de usuario Pagina 53

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