Hydrochloric Acid 50/a, 500 - 5,000 PPM / 50 - 500 PPM, (6728181)
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Hydrochloric Acid 50/a, 500 - 5,000 PPM / 50 - 500 PPM, Part # 6728181, 10 Tests
Standard Measuring Range: 500 to 5,000 / 50 to 500 ppm
Number of Strokes n: 1 / 10
Time for Measurement: approx. 30 s / approx. 5 min
Standard Deviation: ± 10 to 15 %
Color Change: blue white yellow
Ambient Operating Conditions
Temperature: 10 to 50 °C
Absolute Humidity: max. 15 mg H2O / L
HCI + bromophenol blue white yellow reaction product
Hydrogen sulfide and sulfur dioxide do not interfere in the TLV range. It is impossible to measure hydrochloric acid in the presence of other mineral acids. Chlorine and nitrogen dioxide are indicated, but with different sensitivities.