Benzene No.121

C6H6

Performance

Measuring Range

2.5 to 5 ppm

5 to 60 ppm

60 to 120 ppm

Number of Pump Strokes

Correction Factor

1/2

Sampling Time

1.5 minutes per pump stroke

Detecting Limit

0.5 ppm (n=4)

Color Change

White → Dark Green

Reaction Principle

C6H5 + I2O5→ H2S2O7 + I2

Coefficient of Variation10% (for 5 to 20 ppm)， 5% (for 20 to 60 ppm)Shelf Life3 YearsCorrections for
temperature & humidityUnnecessaryStore the tubes at cool and dark place.

Possible coexisting substances and their interferences(NOTE)

Substance

Concentration

Interference

Change color by itself

Esters

2000 ppm

Plus error

No discoloration

Aromatic HCs

Plus error

Produce dark green stain

河南省鑫屬實(shí)業(yè)有限公司發(fā)布與 苯檢測(cè)管121 Benzene C6H6 相關(guān)的產(chǎn)品
醋酸芐基氣體檢測(cè)管147 Amtyl acetate 氨氣檢測(cè)管3L Ammonia NH3 苯氣體檢測(cè)管121SP C6H6 苯氣體檢測(cè)管121SL C6H6 Benzene 苯氣體檢測(cè)管121S Benzene C6H6 醋酸丁酯氣體檢測(cè)管142L Butyl acetate

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河南省鑫屬實(shí)業(yè)有限公司

Benzene No.121

C6H6