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產(chǎn)品詳情

  • 產(chǎn)品名稱：甲醛HCHO檢測(cè)管NO.91PL

  • 產(chǎn)品型號(hào)：NO.91PL
  • 產(chǎn)品廠商：其它品牌
  • 產(chǎn)品文檔：
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甲醛HCHO檢測(cè)管NO.91PL ，甲醛檢測(cè)管NO.91PL，GASTEC甲醛HCHO檢測(cè)管NO.91PL氣體檢測(cè)管，GASTEC甲醛HCHO檢測(cè)管NO.91PL電泵用氣體檢測(cè)管檢測(cè)范圍0.01-0.80ppm。
詳情介紹：
甲醛HCHO檢測(cè)管NO.91PL
甲醛HCHO檢測(cè)管NO.91PL ，甲醛檢測(cè)管NO.91PL，GASTEC甲醛HCHO檢測(cè)管NO.91PL氣體檢測(cè)管，GASTEC甲醛HCHO檢測(cè)管NO.91PL電泵用氣體檢測(cè)管檢測(cè)范圍0.01-0.80ppm。
GASTEC為了滿足用戶在氣體檢測(cè)方面的需要，而開發(fā)出了電子自動(dòng)采氣泵。用傳統(tǒng)的電子吸氣泵幾乎不能進(jìn)行有效的采氣，因?yàn)闄z測(cè)管里的填充試劑密度很高。而GASTEC開發(fā)的GSP電泵系列能提供強(qiáng)勁吸力，能滿足特定的檢測(cè)管的取樣要求。電泵和檢測(cè)管組成的新的檢測(cè)系統(tǒng)能適用于作業(yè)環(huán)境的檢測(cè)。

Formaldehyde

NO.91PL
HCHO 
甲醛HCHO檢測(cè)管NO.91PL
Specifications
Calibration Range(0.01)-0.20 ppm
Measuring range0.01-0.80 ppm
Sampling (flow) Rate200mL/min
Sampling Volume6000mL, 2000mL
Sampling Time30min, 10min.
Detecting Limit0.005 ppm
Colour ChangeLight yellow → peach (pale pinkish) colour
Corrections for temperature/humidityTemperature
Shelf life1 year (in the refrigerator)
AccuracyCV=5-10%
(CV: Coefficient of variation = σ: standard deviation / mean value x 100)
Possibly coexisting substances and their interferences
Substance(s)InterferenceColour change by itself
Ammoniamax. 2 ppmNoNo
Nitrogen dioxidemax. 1 ppmNoNo
Acetaldehyde "+" error
(higher reading)		produces pinkish discolouration
Acetonemax. 0.3 ppmNoProduces pinkish stain around tube opening (inlet)
Ethanol NoNo
Ethyl acetate NoNo
p-dichlorobenzene NoNo
Toluene NoNo

Scrubber 1 (black):removes acetone

Scrubber 2 (purple):
Ammonia and nitrogen dioxide are removed. The presence of ammonia causes the purple scrubber 2 to turn yellow.

The presence of nitrogen dioxide causes scrubber 2 to turn a darker shade of purple
Calibration gas generationDiffusion tube method (analysis: by absorptiometry, acetylacetone method)
Miscellaneous
Electric sampling pump
This detector tube is suited for measuring formaldehyde in indoor environments. The GSP-200 / GSP-300FT series automatic gas samplers (or comparable sampling devices/pumps) should always be used for optimal performance.
A deviation of +/-10% in the sampling flowrate (i.e. amount of air flowing through the tube at a given moment) or the sampling amount (total sampled amount of target substance) causes an average margin of error of approx. +/-10% (maximum +/-20%) in the indicated value.
Formaldehyde indoor concentration threshold: 0.08 ppm (mean value during 30 minutes)
TLV-TWATLV-STELExplosive range
-- -- C0.3ppm7.0×73%
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