Planning the MOBY D system
4.4 Chemical resistance of the MDS
MOBY D
System Manual, 01/2010, J31069-D0147-A6-7618
63
MDS D139 (6GT2600-0AA10)
MDS D124 (6GT2600-0AC10)
MDS D160 (6GT2600-0AB10)
The housing of the heat-resistant data storage unit MDS D139 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 (HNO
3
) 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.
Table 4- 22 Chemical resistance of MDS D139, MDS D124, MDS D160
Test conditions
Substance
Time
[days]
Temperature
[°C]
Evaluation
(FAM-DIN 51604-A)
Toluol
180 80 /
1, 1, 1-trichloroethane
xylene
180 80 +
Acetone 180 55 +
Anti-freeze 180 120 +
Brake fluid 40 80 +
Butanon-2 (methyl ethyl ketone) 180 60 +
Calcium chloride (saturated) 40 80 +
Caustic soda (30 percent) 40 93 +
Diesel fuel 180 80 +
Diethyl ether 40 23 +
Engine oil 40 80 +
Frigen 113 40 23 +
Hydrochloric acid (10 percent) 40 80 -
Kerosine 40 60 +
Methanol 180 60 +
n-Butanol (butyl alcohol) 180 80 +
n-butyl acetate 180 80 +
Nitric acid (10 percent) 40 23 +
Sodium chloride (saturated) 40 80 +
Sodium hydroxide (30 percent) 180 80 +
Sodium hypochlorite (5 percent) 30
180
80
80
/
-
Sulphuric acid
(10 percent)
(10 percent)
(30 percent)
40
40
40
23
80
23
+
/
+
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