Chemical Resistance Of The Rf640T Gen 2 Transponder - Siemens SIMATIC RF600 System Manual

Transponder/tags
7.6 SIMATIC RF640T Gen 2
Ignitions of gas-air or dust-air mixtures
When using the RF640T transponder, check to ensure that the temperature values are
observed in respect of the requirements of the hazardous area of application.
Non-compliance with the permitted temperature ranges while using the transponder can
lead to ignitions of gas-air or dust-air mixtures.
NOTICE
Damage to the surface of the housing
The values specified for the IP x9K test are maximum values and must not be applied
continuously.
Protracted loading of the transponder can lead to damage to the surface of the housing due
to high pressures.
7.6.6.5

Chemical resistance of the RF640T Gen 2 transponder

The following table gives an overview of the chemical composition of the data memory made
from polyamide 12. The plastic housing has a notably high resistance to chemicals used in
automobiles (e.g.: oil, grease, diesel fuel, gasoline) which are not listed separately.
Acetic acid, w.
Ammonia gas
Ammonia, w.
Battery acid
Benzol
Bleach solution (12.5 % effective chlorine)
Butane, gas, liquid
Butyl acetate (acetic acid butyl ester)
Calcium chloride, w.
Calcium nitrate, w.
Carbon tetrachloride
Chlorine
Chrome baths, tech.
Detergent
Ethyl alcohol, w., undenaturated
Formaldehyde, w.
Formalin
256
WARNING
Concentration 20 °C
50
conc.
10
30
k. g.
High
96
50
30
10
System Manual, 10/2009, J31069-D0171-U001-A8-7618
60 °C
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SIMATIC RF600