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P2.x ATEX
9.6 List of chemical resistance
The materials of your device that come into contact with media are printed on the type plate.
Formula
Medium
CH
COCH
Acetone
3
3
C
H
Benzol
6
6
CI
Chlorine
2
CI
Chlorine
2
C
H
Ethane
2
6
C
H
OH
Ethanol
2
5
C
H
Ethylene
2
4
C
H
Ethyne
2
2
C
H
C
H
Ethylbenzene
6
5
2
5
HF
Hydrofluoric acid
CO
Carbon dioxide
2
CO
Carbon monoxide
CH
Methane
4
CH
OH
Methanol
3
CH
CI
Methylene chloride
3
2
H
PO
Phosphoric acid
3
4
H
PO
Phosphoric acid
3
4
C
H
Propane
3
8
C
H
O
Propylene oxide
3
6
HNO
Nitric acid
3
HNO
Nitric acid
3
HCI
Hydrochloric acid
HCI
Hydrochloric acid
O
Oxygen
2
SF
Sulphur hexafluoride
6
H
SO
Sulfuric acid
2
4
H
S
Hydrogen sulphide
2
N
Nitrogen
2
C
H
C
H
Styrene
6
5
2
3
C
H
CH
Toluol (methylbenzene)
6
5
3
H
O
Water
2
H
Hydrogen
2
Tab. 2: Durability list
0 – no information available
1 – durability/suitability very good
2 – durability/suitability good
3 – limited suitability
4 – not suitable
Two values are specified per medium. Left number = value at 20 °C, right number = value at 50 °C.
Important information
The tables were listed based on specifications from various raw material manufacturers. The values solely refer to laboratory
tests using raw materials. Components made from these are often subject to impacts which cannot be determined in laboratory
testing (temperature, pressure, material strain, impacts of chemical agents, design features, etc.). The values specified can
therefore only serve as a guide. When in doubt, we recommend performing a test. These specifications do not infer a legal claim,
we exclude any warranty and liability. The chemical and mechanical durability alone do not suffice to determine the serviceabil-
ity of a product. In particular the regulations for liquid fuels (Ex-protection) must be observed, among others.
Durability to other mediums available upon request.
36
Bühler Technologies GmbH
Concentration
Teflon®
PTFE
1/1
1/1
10% wet
1/1
97%
1/0
1/0
50%
1/1
1/0
1/0
1/0
1/0
1/1
1/0
technically pure
1/1
1/1
1/0
1–5%
1/1
30%
1/1
gaseous
1/1
1/0
1–10%
1/1
50%
1/1
1–5%
1/1
35%
1/1
1/1
1/0
1–6%
1/1
1/1
1/1
1/1
1/1
1/1
1/0
PCTFE PEEK
PVDF
1/3
1/1
3/4
1/3
1/1
1/3
0/0
4/4
2/2
1/3
4/4
1/1
0/0
1/0
2/0
1/3
1/1
1/1
0/0
0/0
1/0
0/0
0/0
1/0
0/0
0/0
1/1
0/0
0/0
2/2
0/0
1/0
1/1
0/0
1/1
1/1
0/0
1/1
1/0
1/1
1/1
1/1
2/0
1/0
1/0
1/1
1/1
1/1
1/1
1/1
1/1
0/0
1/0
1/1
0/0
0/0
2/4
1/0
1/1
1/1
1/0
3/3
1/1
1/1
1/0
1/1
1/1
1/0
1/1
0/0
1/0
1/1
0/0
1/0
0/0
1/1
2/2
1/1
1/1
0/0
1/1
0/0
1/0
1/1
0/0
1/0
1/0
0/0
1/0
1/1
0/0
1/1
1/1
1/0
1/0
1/0
FFKM
Viton®
V4A
FPM
1/1
4/4
1/1
1/1
3/3
1/1
1/1
3/0
4/4
1/0
1/1
1/1
1/0
1/0
2/0
1/1
2/2
1/0
1/0
1/0
1/0
1/0
2/0
1/0
1/0
2/0
1/0
2/0
4/0
3/4
1/0
1/1
1/1
1/0
1/0
1/1
1/0
1/1
1/1
1/1
3/4
1/1
1/0
3/0
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/0
1/0
1/0
2/0
4/0
1/0
1/0
1/1
1/1
1/0
1/0
1/2
1/1
1/1
2/4
1/1
1/2
2/4
1/1
1/2
1/1
1/0
2/0
0/0
1/1
1/1
1/2
1/1
4/4
1/1
1/0
1/1
1/0
1/0
3/0
1/0
1/1
3/3
1/1
1/1
1/1
1/1
1/0
1/0
1/0
BE420002 ◦ 07/2024
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