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簡要描述:一氧化(hua)碳(tan)檢測(ce)(ce)(ce)管(guan)L,GASTEC1DL檢測(ce)(ce)(ce)范圍0.4 to 400 ppm,檢測(ce)(ce)(ce)管(guan)檢測(ce)(ce)(ce)時(shi)間(jian)在1-10小時(shi)左右。1DL采用自(zi)然(ran)擴散的方式。其(qi)特(te)點:簡(jian)潔,輕巧(qiao),方便多用、直接(jie)讀數、不需取樣設備(bei)。
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1DL的詳細介紹
1DL
1DL,GASTEC1DL檢測范圍0.4 to 400 ppm,檢測管檢測時間(jian)在1-10小(xiao)時左右。
1DL采用自然擴散的方式。其特點:簡潔,輕巧,方便多用、直接讀數、不需取樣設備。
被(bei)動擴散式檢測管是用來測定較長(chang)時(shi)(shi)間下氣體濃(nong)度的(de)時(shi)(shi)量平(ping)均值(TWA),采用自然擴散(san)的方式。
這(zhe)種(zhong)檢測管里面填(tian)充有(you)吸(xi)附劑及反應劑,氣體(ti)以一定的速(su)率被(bei)均勻吸(xi)附,從而出現(xian)較為明顯均勻的變色
檢(jian)測工作場所人員的(de)有害氣體(ti)暴露量時,用右(you)圖的(de)檢(jian)測管夾(710)放置(zhi)在人(ren)員衣領處即可。
檢(jian)測有害氣體在工作(zuo)場(chang)所的分布時(shi),把該檢(jian)測管(guan)固定(ding)放置(zhi)一(yi)段時(shi)間(jian)后就可檢(jian)測出來(lai)。也可用來(lai)進行(xing)更(geng)長時(shi)間(jian)的檢(jian)測
Carbon monoxide | DL |
CO |
Performance
Measuring Range | 0.4 to 400 ppm | |
Sampling Hours | 0.5 to 24 hours | |
Detecting Limit | 0.2 ppm (24 hours) | |
Colour Change | Pale Yellow → Brown | |
Reaction Principle | CO + Na2Pd(SO3)2 → Pd + CO2 + SO2 + Na2SO3 | |
Coefficient of Variation | 10% (for 10 to 200 ppm-hr) | |
Shelf Life | 2 Years | |
Corrections for temperature & humidity | Unnecessary | |
Store the tubes in the refrigerator to keep at 10oC (50oF) or below. |
Possible coexisting substances and their interferences
Substance | Concentration | Interference | Change colour by itself to |
Nitrogen 倣onoxide | 亝 1/10 | No | No |
Sulphur dioxide | 亝 1/1 | No | No |
Nitrogen dioxide | 亝 1/20 | No | Brown |
Calibration gas generation | High pressure gas cylinder method |
TLV-TWA | TLV-S | Explosive range |
25 ppm | - | 12.5 to 74% 訂購 |
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