一、紫外線燈管強度要求多高

按照(zhao)(zhao)(zhao)《消毒技術規范(fan)》規定的(de)(de)要求，高強(qiang)(qiang)度(du)紫外(wai)線(xian)新(xin)燈(deng)的(de)(de)輻照(zhao)(zhao)(zhao)強(qiang)(qiang)度(du)應大于(yu)(yu)180uW／cm2(253.7nm，距離1m處)，普通(tong)紫外(wai)線(xian)燈(deng)管(guan)輻射(she)強(qiang)(qiang)度(du)大于(yu)(yu)90uW／cm2為合格。正在使(shi)(shi)用中的(de)(de)燈(deng)管(guan)輻射(she)強(qiang)(qiang)度(du)最低應達到(dao)70uW／cm2暫可使(shi)(shi)用，但必(bi)須延(yan)長照(zhao)(zhao)(zhao)射(she)時間。若(ruo)紫外(wai)線(xian)光源的(de)(de)強(qiang)(qiang)度(du)低于(yu)(yu)40uW／cm2，則再延(yan)長照(zhao)(zhao)(zhao)射(she)時間也不能起(qi)到(dao)滿意的(de)(de)殺(sha)菌作用，即應停止使(shi)(shi)用并(bing)更換新(xin)燈(deng)管(guan)。

因此，不(bu)要認為紫外線(xian)燈管只要亮著就還(huan)有(you)殺菌作用(yong)，每隔一段時間就應該對紫外線(xian)燈管強度進行檢測。

二、uv紫外線燈管強度監測多久一次

紫外線(xian)燈管強(qiang)度監測時間應查看紫外線(xian)需要監測的時間，按時進行(xing)監測：

1、使用中的大(da)于(yu)90uW/cm2?的半(ban)年監測一(yi)次。

2、大于(yu)70uW/cm2小(xiao)于(yu)90uW/cm2?一(yi)季(ji)度監測一(yi)次。

3、累(lei)計使(shi)用1000小時換無論是否監測(ce)合格均換新(xin)管。

4、換新(xin)管時(shi)需監(jian)測(ce)合格后方可使(shi)用。

該圖片由注冊用戶"荊湖酒徒"提供，版權聲明反饋

三、怎樣做紫外線燈管強度監測

uv燈管強度監(jian)測(ce)(ce)(ce)方法是用(yong)專門(men)的儀器或試紙進行監(jian)測(ce)(ce)(ce)，用(yong)于測(ce)(ce)(ce)試紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)輻(fu)射(she)強度的紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)強度儀也叫紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)輻(fu)照(zhao)計(ji)或紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)指示(shi)卡(ka)(ka)(ka)。紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)強度指示(shi)卡(ka)(ka)(ka)由卡(ka)(ka)(ka)片紙、紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)感光(guang)(guang)色塊(kuai)和標(biao)準(zhun)(zhun)色組(zu)成。中央為紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)感光(guang)(guang)色塊(kuai)，兩(liang)端分別(bie)印上輻(fu)射(she)照(zhao)度為90μW/cm2和70μW/cm2的標(biao)準(zhun)(zhun)色塊(kuai)，當紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)感光(guang)(guang)色塊(kuai)受到紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)照(zhao)射(she)后，隨(sui)紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)輻(fu)射(she)強度的強弱，產生深(shen)淺程度不同(tong)的紫(zi)(zi)(zi)(zi)(zi)紅(hong)色，與標(biao)準(zhun)(zhun)色塊(kuai)比(bi)較(jiao)可監(jian)測(ce)(ce)(ce)紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)燈253.7nm波段紫(zi)(zi)(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)的輻(fu)射(she)強度。

測定時(shi)，打開紫(zi)(zi)外(wai)(wai)線(xian)燈管(guan)5min，待其穩定后，將指示卡置于距紫(zi)(zi)外(wai)(wai)線(xian)燈管(guan)下方垂直1m中(zhong)央處，將有(you)圖案(an)一面朝向燈管(guan)，照(zhao)(zhao)(zhao)射1min。紫(zi)(zi)外(wai)(wai)線(xian)燈照(zhao)(zhao)(zhao)射后，圖案(an)中(zhong)的紫(zi)(zi)外(wai)(wai)線(xian)感光色(se)塊由乳白色(se)變(bian)成(cheng)深淺程度不同的紫(zi)(zi)紅色(se)。將其與標準色(se)塊相比，即(ji)可(ke)測知(zhi)紫(zi)(zi)外(wai)(wai)線(xian)燈輻照(zhao)(zhao)(zhao)強度是否達到(dao)使用要(yao)求。