User's Manual Part 1

Table Of Contents
RF300 system planning
4.5 Chemical resistance of the transponders
SIMATIC RF300
70 System Manual, 09/2007, J31069 D0166-U001-A5-7618
Transponder RF380T
The housing of the heat-resistant data storage unit is made of polyphenylene sulfide (PPS).
The chemical resistance of the data storage unit is excellent. No solvent is known that can
dissolve the plastic at temperatures below 200 °C. A reduction in the mechanical properties
has been observed in aqueous solutions of hydrochloric acid (HCl) and nitric acid (HNO3) at
80 °C. The excellent resistance to all fuel types including methanol is a particular
characteristic. The following table provides an overview of the chemicals investigated.
Test conditions Substance
Time[days] Temperature[°C]
Evaluation
Acetone 180 55 +
n-Butanol (butyl alcohol) 180 80 +
Butanon-2 (methyl ethyl
ketone)
180 60 +
n-butyl acetate 180 80 +
Brake fluid 40 80 +
Calcium chloride (saturated) 40 80 +
Diesel fuel 180 80 +
Diethyl ether 40 23 +
Frigen 113 40 23 +
Anti-freeze 180 120 +
Kerosine 40 60 +
Methanol 180 60 +
Engine oil 40 80 +
Sodium chloride (saturated) 40 80 +
Sodium hydroxide (30%) 180 80 +
Sodium hypochlorite (5%) 30 80 /
180 80
Caustic soda (30%) 40 93 +
Nitric acid (10%) 40 23 +
Hydrochloric acid (10%) 40 80
Sulphuric acid (10%) 40 23 +
(10%) 40
(30%) 40
Tested fuels: 40 80 +
(FAM-DIN 51 604-A) 180 80 /
Toluene
1, 1, 1-trichloroethane 180 80 +
Xylene
Zinc chloride (saturated) 180 80 /
180 75 +
180 80 +
40 80 +