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Tubes Handbook 18th Edition (EN) - May 2018

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|259<br />

Toluene 5/b<br />

Order No. 81 01 661<br />

T<br />

Application Range<br />

Standard Measuring Range: 50 to 300 ppm / 5 to 80 ppm<br />

Number of Strokes n: 2 / 10<br />

Time for Measurement: approx. 2 min / approx. 10 min<br />

Standard Deviation: ± 10 to 15 %<br />

Color Change:<br />

white ä pale brown<br />

Ambient Operating Conditions<br />

Temperature: 2 to 40 °C<br />

Absolute Humidity:<br />

max. 20 mg H 2 O / L<br />

Reaction Principle<br />

Toluene + I 2 O 5 + H 2 SO 4 ä I 2<br />

Cross Sensitivity<br />

10 ppm phenol, 1,000 ppm acetone, 1,000 ppm ethanol and<br />

300 ppm octane are not indicated, xylene (all isomers) and<br />

benzene are indicated with the same sensitivity. The discoloration<br />

in the presence of p-xylene is violet, and yellowish-green with<br />

benzene.<br />

ST-151-2001

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