甲醛HCHO氣體檢測(cè)管91D 91D

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產(chǎn)品價(jià)格： < 面議

產(chǎn)品型號(hào)：91D

品牌：日本GASTEC

公司名稱：氣體檢測(cè)儀器網(wǎng)｜北京圣達(dá)駿業(yè)科技有限公司

所在地：北京豐臺(tái)

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甲醛HCHO氣體檢測(cè)管91D檢測(cè)范圍Measuring Range 0.1 to 20 ppm Sampling Hours 1 to 10 hours Detecting Limit 0.05 ppm (10 hours)

產(chǎn)品詳細(xì)信息

甲醛HCHO氣體檢測(cè)管91D

擴(kuò)散式氣體檢測(cè)管簡(jiǎn)單介紹
甲醛氣體檢測(cè)管91D HCHO，檢測(cè)范圍Measuring Range 0.1 to 20 ppm Sampling Hours 1 to 10 hours Detecting Limit 0.05 ppm (10 hours) 甲醛氣體檢測(cè)管價(jià)格，甲醛氣體檢測(cè)管91D HCHO

甲醛氣體檢測(cè)管91D HCHO的詳細(xì)介紹
甲醛氣體檢測(cè)管91D HCHO Formaldehyd No.91D
HCHO

Performance

Measuring Range	0.1 to 20 ppm
Sampling Hours	1 to 10 hours
Detecting Limit	0.05 ppm (10hours)
Color Change	Yellow → ReddishBrown
Reaction Principle	3HCHO +(NH2OH)3H3PO4 →H3PO4 H3PO4 + Base+Phosphate
Coefficient ofVariation	10% (for 1 to 20 ppm-hr)
ShelfLife	1 Year
Correctionsfor temperature & humidity	Unnecessary
Store the tubes inthe refrigerator to keep at 10^oC (50^oF) orbelow.

Possible coexisting substances and theirinterferences

(NOTE)

Substance	Interference	Change colour byitself to
Aldehydes, Ketones,Acid gases	+	Reddishbrown

Othersubstance measurable with this detectortube

Substance	CorrectionFactor	SamplingTime	MeasuringRange
Acetaldehyde	1.0	1 to 10 hours	0.1 to 20 ppm
Furfural	3.0	1 to 10 hours	0.3 to 60 ppm
Methyl ethylketone	1.25	1 to 10 hours	0.125 to 25ppm