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產品名稱：甲醛檢測管NO.91P
產品型號：NO.91P
產品展商：日本GASTEC
產品文檔：無相關文檔

簡單介紹

甲醛檢測管NO.91P，GASTEC甲醛檢測管NO. 91P電泵用氣體檢測管檢測范圍0.02-1.44ppm

產品描述

甲醛檢測管NO.91P

甲醛檢測管NO.91P

簡單介紹
甲醛檢測管NO. 91P，GASTEC甲醛檢測管NO. 91P氣體檢測管，甲醛HCHO檢測管NO. 91P,GASTEC甲醛檢測管NO. 91P電泵用氣體檢測管檢測范圍0.02-1.44ppm。
甲醛檢測管NO. 91P的詳細介紹
甲醛檢測管NO. 91P
甲醛檢測管NO. 91P，GASTEC甲醛檢測管NO. 91P氣體檢測管，甲醛HCHO檢測管NO. 91P,GASTEC甲醛檢測管NO. 91P電泵用氣體檢測管檢測范圍0.02-1.44ppm。
GASTEC為了滿足用戶在氣體檢測方面的需要，而開發出了電子自動采氣泵。用傳統的電子吸氣泵幾乎不能進行有效的采氣，因為檢測管里的填充試劑密度很高。而GASTEC開發的GSP電泵系列能提供強勁吸力，能滿足特定的檢測管的取樣要求。電泵和檢測管組成的新的檢測系統能適用于作業環境的檢測。

Formaldehyde

NO.91P

HCHO

Specifications

Calibration Range	0.02-0.4 ppm
Measuring range	0.02-1.44 ppm
Sampling (flow) Rate	200mL/min
Sampling Volume	6000mL, 2000mL
Sampling Time	30min, 10min.
Detecting Limit	0.01 ppm
Colour Change	Yellow → pink
Corrections for temperature/humidity	Temperature
Shelf life	1 year (in the refrigerator)
Accuracy	CV=5-10% (CV: Coefficient of variation = σ: standard deviation / mean value x 100)

Possibly coexisting substances and their interferences

Substance(s)

Interference

Colour change by itself

Ammonia	2 ppm (or less)	No	No
Nitrogen dioxide	1 ppm (or less)	No	No
Acetaldehyde		"+" error (higher reading)	produces pinkish discolouration
Acetone	0.3 ppm (or less)	No	Produces pinkish stain around tube opening (inlet)
Ethanol		No	No
Ethyl acetate		No	No
p-dichlorobenzene		No	No
Toluene		No	No
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 generation

Diffusion 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-TWA	TLV-STEL	Explosive range
-- --	C0.3ppm	7.0×73%

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產品資料

甲醛檢測管NO.91P

Formaldehyde