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121AHS苯檢測管

簡要描述:

低濃度(du)苯C6H6氣(qi)體(ti)檢測(ce)管(guan)(guan)(guan)No.21AHS 21AHS日(ri)本(ben)GASTEC低濃度(du)苯C6H6氣(qi)體(ti)檢測(ce)管(guan)(guan)(guan)21AHS 美國ALI公司 低濃度(du)苯C6H6氣(qi)體(ti)檢測(ce)管(guan)(guan)(guan)GASTEC21AHS苯檢測(ce)管(guan)(guan)(guan),檢測(ce)范圍:10-240ppb)需(xu)要(yao)通氣(qi)總量為22升,每分(fen)鐘(zhong)需(xu)要(yao)400毫升,取(qu)樣時間為55分(fen)鐘(zhong)。

更(geng)新(xin)時間:2024-01-14

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121AHS苯檢測管

低濃(nong)度(du)(du)苯(ben)C6H6氣(qi)(qi)(qi)體(ti)檢(jian)(jian)(jian)測(ce)管(guan)(guan)(guan)(guan)No.21AHS 21AHS日本GASTEC低濃(nong)度(du)(du)苯(ben)C6H6氣(qi)(qi)(qi)體(ti)檢(jian)(jian)(jian)測(ce)管(guan)(guan)(guan)(guan)21AHS 美國ALI公司(si) 低濃(nong)度(du)(du)苯(ben)C6H6氣(qi)(qi)(qi)體(ti)檢(jian)(jian)(jian)測(ce)管(guan)(guan)(guan)(guan)GASTEC21AHS苯(ben)檢(jian)(jian)(jian)測(ce)管(guan)(guan)(guan)(guan),檢(jian)(jian)(jian)測(ce)范(fan)圍:10-240ppb)需要(yao)通氣(qi)(qi)(qi)總量為22升,每分鐘需要(yao)400毫升,取樣(yang)時間為55分鐘。 用檢(jian)(jian)(jian)測(ce)管(guan)(guan)(guan)(guan)法檢(jian)(jian)(jian)測(ce)食品級二氧化(hua)碳中某些雜質(zhi)的(de)(de)(de)干擾 氣(qi)(qi)(qi)體(ti)檢(jian)(jian)(jian)測(ce)管(guan)(guan)(guan)(guan)是利用填(tian)充在玻璃管(guan)(guan)(guan)(guan)中的(de)(de)(de)檢(jian)(jian)(jian)測(ce)劑(ji)(ji)(ji)與被測(ce)氣(qi)(qi)(qi)體(ti)發生(sheng)化(hua)學反應(ying)而(er)發生(sheng)顏色(se)(se)變(bian)(bian)化(hua),通過觀察變(bian)(bian)色(se)(se)層的(de)(de)(de)長度(du)(du),得(de)到被測(ce)氣(qi)(qi)(qi)體(ti)的(de)(de)(de)濃(nong)度(du)(du)。在一定直(zhi)徑的(de)(de)(de)玻璃管(guan)(guan)(guan)(guan)內緊密(mi)地裝填(tian)檢(jian)(jian)(jian)測(ce)劑(ji)(ji)(ji),將兩(liang)端燒封,然后在玻璃管(guan)(guan)(guan)(guan)表(biao)面印制(zhi)(zhi)表(biao)示濃(nong)度(du)(du)的(de)(de)(de)刻度(du)(du),就(jiu)制(zhi)(zhi)成了一支檢(jian)(jian)(jian)測(ce)管(guan)(guan)(guan)(guan)。檢(jian)(jian)(jian)測(ce)劑(ji)(ji)(ji)通過在硅(gui)膠或氧化(hua)鋁等(deng)物質(zhi)表(biao)面附著(zhu)(zhu)顯色(se)(se)試劑(ji)(ji)(ji)的(de)(de)(de)方法所制(zhi)(zhi)成的(de)(de)(de)。顯色(se)(se)試劑(ji)(ji)(ji)遇到被測(ce)氣(qi)(qi)(qi)體(ti)時,會發生(sheng)特定反應(ying),產生(sheng)變(bian)(bian)色(se)(se),這種檢(jian)(jian)(jian)測(ce)試劑(ji)(ji)(ji)具(ju)有相當的(de)(de)(de)穩定性。 一系(xi)列(lie)的(de)(de)(de)食品安(an)全(quan)事(shi)件給(gei)人(ren)們(men)留(liu)下(xia)了深刻的(de)(de)(de)印象,消(xiao)費者對食品安(an)全(quan)性的(de)(de)(de)要(yao)求更(geng)高。但對于食品安(an)全(quan)來說(shuo),預(yu)防和(he)控制(zhi)(zhi)顯然意味著(zhu)(zhu)更(geng)多,也更(geng)為重要(yao)。在人(ren)們(men)日常生(sheng)活中zui主要(yao)的(de)(de)(de)飲料(liao)之一,