一、紫外線燈管強度要求多高

按(an)照(zhao)《消毒技術規范》規定的(de)要求，高(gao)強度(du)紫外線新燈的(de)輻(fu)照(zhao)強度(du)應大于180uW／cm2(253.7nm，距離1m處)，普通(tong)紫外線燈管(guan)輻(fu)射(she)強度(du)大于90uW／cm2為合格。正在(zai)使用(yong)(yong)中的(de)燈管(guan)輻(fu)射(she)強度(du)最(zui)低(di)應達到70uW／cm2暫可使用(yong)(yong)，但(dan)必須延長照(zhao)射(she)時(shi)間(jian)。若紫外線光源的(de)強度(du)低(di)于40uW／cm2，則再延長照(zhao)射(she)時(shi)間(jian)也不(bu)能起(qi)到滿意的(de)殺菌作用(yong)(yong)，即應停(ting)止使用(yong)(yong)并更換新燈管(guan)。

因(yin)此，不要認(ren)為(wei)紫外線(xian)燈(deng)管只要亮著就(jiu)還(huan)有(you)殺(sha)菌作用，每隔一段(duan)時間就(jiu)應該對紫外線(xian)燈(deng)管強度進行檢(jian)測。

二、uv紫外線燈管強度監測多久一次

紫外線燈管強度(du)監測時(shi)間(jian)應查看紫外線需要監測的時(shi)間(jian)，按時(shi)進(jin)行(xing)監測：

1、使用中的大于90uW/cm2?的半年監測一次。

2、大于70uW/cm2小于90uW/cm2?一季度監測一次。

3、累計使用1000小時(shi)換無(wu)論是否(fou)監(jian)測合格均(jun)換新管(guan)。

4、換新管時(shi)需(xu)監測合格后方(fang)可使用。

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(qiang)度監(jian)(jian)測(ce)(ce)方法是用專門的(de)(de)儀器或(huo)試(shi)紙進行監(jian)(jian)測(ce)(ce)，用于測(ce)(ce)試(shi)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)輻(fu)射強(qiang)度的(de)(de)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)強(qiang)度儀也叫紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)輻(fu)照(zhao)計或(huo)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)指(zhi)示卡。紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)強(qiang)度指(zhi)示卡由卡片(pian)紙、紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)感光色塊和標(biao)準(zhun)色組成。中(zhong)央為(wei)(wei)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)感光色塊，兩(liang)端分別印上輻(fu)射照(zhao)度為(wei)(wei)90μW/cm2和70μW/cm2的(de)(de)標(biao)準(zhun)色塊，當(dang)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)感光色塊受到(dao)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)照(zhao)射后，隨紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)輻(fu)射強(qiang)度的(de)(de)強(qiang)弱，產生深淺程度不(bu)同的(de)(de)紫(zi)(zi)(zi)紅色，與標(biao)準(zhun)色塊比較可監(jian)(jian)測(ce)(ce)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)燈253.7nm波段(duan)紫(zi)(zi)(zi)外(wai)(wai)(wai)(wai)(wai)線(xian)(xian)(xian)(xian)的(de)(de)輻(fu)射強(qiang)度。

測定時，打開(kai)紫外(wai)線(xian)(xian)燈(deng)(deng)管(guan)5min，待其穩定后(hou)，將(jiang)指(zhi)示卡置于距(ju)紫外(wai)線(xian)(xian)燈(deng)(deng)管(guan)下(xia)方垂直1m中央處，將(jiang)有圖(tu)案一面朝(chao)向燈(deng)(deng)管(guan)，照(zhao)(zhao)射1min。紫外(wai)線(xian)(xian)燈(deng)(deng)照(zhao)(zhao)射后(hou)，圖(tu)案中的(de)紫外(wai)線(xian)(xian)感光(guang)色塊由乳(ru)白色變成深淺程(cheng)度(du)不(bu)同(tong)的(de)紫紅(hong)色。將(jiang)其與(yu)標準色塊相比，即可測知紫外(wai)線(xian)(xian)燈(deng)(deng)輻照(zhao)(zhao)強(qiang)度(du)是(shi)否達到(dao)使用要求。