双氧水H2O2检测管32D
双氧水H2O2检测管32D，GASTEC双氧水H2O2检测管32D检测范围0.5-40 ppm，检测管检测时间在1-10小时左右。双氧水H2O2检测管32D 采用自然扩散的方式。双氧水H2O2检测管32D其特点：简洁，轻巧，方便多用、直接读数、不需取样设备。

被动扩散式检测管是用来测定较长时间下气体浓度的时量平均值（TWA），采用自然扩散的方式。
这种检测管里面填充有吸附剂及反应剂，气体以一定的速率被均匀吸附，从而出现较为明显均匀的变色

检测工作场所人员的有害气体暴露量时，用右图的检测管夹（710）放置在人员衣领处即可。
检测有害气体在工作场所的分布时，把该检测管固定放置一段时间后就可检测出来。也可用来进行更长时间的检测

Hydrogen peroxide

NO.32D

H2O2

Performance

Measuring Range	0.5 to 40 ppm
Sampling Hours	1 to10 hours
Detecting Limit	0.3 ppm (10 hours)
Colour Change	White → Yellow
Reaction Principle	H2O2 + Ti(SO4)2 → Yellow product
Coefficient of Variation	10% (for 5 to 40 ppm-hr)
Shelf Life	3 Years
Corrections for temperature & humidity	Temperature correction is necessary
Store the tubes at cool and dark place.

Possible coexisting substances and their interferences

Substance

Concentration

Interference

Change colour by itself to

Calibration gas generation

Diffusion tube method

TLV-TWA	TLV-STEL	Explosive range
1 ppm	-	-