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行業動態 行業動態

實驗室必須注意避免的五個關鍵問題!

2023-05-23 作者: 瀏覽數:968

PART 01
超范圍蓋章

按照《計量(liang)(liang)法(fa)》規定,對社會出具(ju)具(ju)有證明作(zuo)用(yong)(yong)的數(shu)(shu)據實(shi)驗(yan)(yan)(yan)(yan)室(shi)必(bi)須經過(guo)實(shi)驗(yan)(yan)(yan)(yan)室(shi)資質(zhi)(zhi)認定(計量(liang)(liang)認證)和/或(huo)CNAS認可,而資質(zhi)(zhi)認定和/或(huo)CNAS認可是(shi)限(xian)定實(shi)驗(yan)(yan)(yan)(yan)室(shi)能(neng)力范(fan)(fan)圍(wei)的,實(shi)驗(yan)(yan)(yan)(yan)室(shi)只(zhi)能(neng)在能(neng)力范(fan)(fan)圍(wei)限(xian)定的產品(pin)(參數(shu)(shu))范(fan)(fan)圍(wei)內(nei)出具(ju)帶相應標識的檢(jian)驗(yan)(yan)(yan)(yan)報告,檢(jian)驗(yan)(yan)(yan)(yan)使用(yong)(yong)的標準不在能(neng)力范(fan)(fan)圍(wei)者,我(wo)們稱之為超(chao)范(fan)(fan)圍(wei)檢(jian)驗(yan)(yan)(yan)(yan)。國(guo)家(jia)質(zhi)(zhi)檢(jian)總局發布執行的《產品(pin)質(zhi)(zhi)量(liang)(liang)監(jian)督抽查管(guan)理辦法(fa)》、《產品(pin)質(zhi)(zhi)量(liang)(liang)檢(jian)驗(yan)(yan)(yan)(yan)機構工作(zuo)質(zhi)(zhi)量(liang)(liang)分類監(jian)管(guan)辦法(fa)》以(yi)及其他規定中(zhong)也都明確規定實(shi)驗(yan)(yan)(yan)(yan)室(shi)不得超(chao)能(neng)力范(fan)(fan)圍(wei)開展檢(jian)測(ce)工作(zuo),但在實(shi)際(ji)工作(zuo)過(guo)程中(zhong),個別(bie)檢(jian)驗(yan)(yan)(yan)(yan)機構超(chao)能(neng)力范(fan)(fan)圍(wei)檢(jian)測(ce)情況(kuang)時(shi)有發生。超(chao)范(fan)(fan)圍(wei)檢(jian)驗(yan)(yan)(yan)(yan)主(zhu)要有三種形式:

NO.1

故意超能力范圍檢驗(yan)

實(shi)驗(yan)室或實(shi)驗(yan)室中個別人(ren)員為滿(man)足客戶要求,為實(shi)驗(yan)室爭取經濟利益(yi),對(dui)不在(zai)能(neng)力范圍(wei)內(nei)的產(chan)品(pin)開展檢(jian)驗(yan)工作(zuo),出具(ju)帶(dai)標識的檢(jian)驗(yan)報(bao)告;或實(shi)驗(yan)室人(ren)員以為采用標準中的個別標準在(zai)能(neng)力范圍(wei)內(nei),誤(wu)將產(chan)品(pin)進行檢(jian)驗(yan)并(bing)出具(ju)帶(dai)標識的檢(jian)驗(yan)報(bao)告。

近(jin)年來,質檢(jian)總局(ju)、認監委、省(sheng)市(shi)質監局(ju)對超(chao)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)圍(wei)(wei)(wei)檢(jian)測(ce)的(de)(de)處罰都非常(chang)嚴厲,甚至停止個別實(shi)驗(yan)室(shi)的(de)(de)檢(jian)測(ce)活動。因(yin)此,實(shi)驗(yan)室(shi)應將(jiang)超(chao)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)圍(wei)(wei)(wei)檢(jian)測(ce)的(de)(de)后果向每一(yi)位(wei)員工宣(xuan)傳,不(bu)能(neng)(neng)(neng)為(wei)經(jing)濟利益或所(suo)謂的(de)(de)為(wei)企業(ye)著想而故意超(chao)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)圍(wei)(wei)(wei)檢(jian)測(ce);同(tong)時(shi)實(shi)驗(yan)室(shi)還應認真梳(shu)理實(shi)驗(yan)室(shi)的(de)(de)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)圍(wei)(wei)(wei),對確實(shi)有設備、具備檢(jian)驗(yan)能(neng)(neng)(neng)力(li)(li)(li)(li)而不(bu)在能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)圍(wei)(wei)(wei)內的(de)(de)標準,應盡快進(jin)行擴項,提(ti)高(gao)為(wei)企業(ye)服務的(de)(de)能(neng)(neng)(neng)力(li)(li)(li)(li)。

NO.2

標準(zhun)變更后(hou)未及時(shi)進行能力(li)確(que)認(ren)

近年(nian)來,不管是(shi)(shi)產品(pin)標(biao)(biao)準(zhun)(zhun)(zhun)還是(shi)(shi)方法標(biao)(biao)準(zhun)(zhun)(zhun),標(biao)(biao)準(zhun)(zhun)(zhun)的變(bian)更非常頻繁。按照(zhao)實(shi)驗(yan)(yan)(yan)室(shi)(shi)資(zi)質認定(ding)(ding)評(ping)審(shen)準(zhun)(zhun)(zhun)則(ze)的規定(ding)(ding),實(shi)驗(yan)(yan)(yan)室(shi)(shi)使用的文件必須是(shi)(shi)現(xian)行有效(xiao)的,因(yin)此,實(shi)驗(yan)(yan)(yan)室(shi)(shi)不能使用作廢(fei)標(biao)(biao)準(zhun)(zhun)(zhun)開展(zhan)檢(jian)測(ce)工作。實(shi)驗(yan)(yan)(yan)室(shi)(shi)采(cai)用新(xin)標(biao)(biao)準(zhun)(zhun)(zhun)開展(zhan)工作,則(ze)必須及時到實(shi)驗(yan)(yan)(yan)室(shi)(shi)資(zi)質認定(ding)(ding)和/或CNAS認可的發證機構進(jin)行標(biao)(biao)準(zhun)(zhun)(zhun)變(bian)更。目前(qian),有的實(shi)驗(yan)(yan)(yan)室(shi)(shi)怕麻(ma)煩,往(wang)往(wang)等到復(fu)評(ping)審(shen)或監督評(ping)審(shen)時才(cai)進(jin)行標(biao)(biao)準(zhun)(zhun)(zhun)變(bian)更。在新(xin)標(biao)(biao)準(zhun)(zhun)(zhun)開始實(shi)施到通過實(shi)驗(yan)(yan)(yan)室(shi)(shi)復(fu)評(ping)審(shen)或監督評(ping)審(shen)之間如果按新(xin)標(biao)(biao)準(zhun)(zhun)(zhun)開展(zhan)檢(jian)驗(yan)(yan)(yan)工作,則(ze)是(shi)(shi)超范圍檢(jian)驗(yan)(yan)(yan)。

還有(you)一種(zhong)隱性超能(neng)(neng)力(li)范(fan)圍(wei)的情形。實驗(yan)(yan)室(shi)通過的檢(jian)驗(yan)(yan)能(neng)(neng)力(li)范(fan)圍(wei)時,實際(ji)隱含的意思(si)是包括產品(pin)(pin)標(biao)(biao)準(zhun)中引用(yong)(yong)標(biao)(biao)準(zhun)也通過實驗(yan)(yan)室(shi)評審。當其(qi)引用(yong)(yong)標(biao)(biao)準(zhun)出現標(biao)(biao)準(zhun)變(bian)更尤其(qi)是檢(jian)驗(yan)(yan)方(fang)法、環境設施有(you)實際(ji)變(bian)化的情況(kuang)下,其(qi)產品(pin)(pin)檢(jian)驗(yan)(yan)的實際(ji)檢(jian)驗(yan)(yan)能(neng)(neng)力(li)有(you)可能(neng)(neng)出現變(bian)化。這(zhe)種(zhong)變(bian)化,可能(neng)(neng)會導(dao)致實驗(yan)(yan)室(shi)不能(neng)(neng)按現行(xing)有(you)效標(biao)(biao)準(zhun)正常開(kai)展檢(jian)驗(yan)(yan)工作。我們把這(zhe)種(zhong)變(bian)化稱(cheng)之為“隱性的”超范(fan)圍(wei)檢(jian)驗(yan)(yan)。

由于(yu)標準(zhun)變更后(hou)需要重新進行能(neng)力(li)(li)確(que)認,個別(bie)實(shi)(shi)驗(yan)室(shi)(shi)(shi)怕麻煩,往(wang)(wang)往(wang)(wang)會(hui)等到監(jian)督評審或復評審時(shi)才進行確(que)認,從而(er)(er)導致(zhi)超能(neng)力(li)(li)范圍檢(jian)(jian)驗(yan)。因此(ci),實(shi)(shi)驗(yan)室(shi)(shi)(shi)應(ying)關注和(he)避免這種情況的(de)發生(sheng),在能(neng)力(li)(li)未確(que)認前,不得使用新標準(zhun)開展(zhan)檢(jian)(jian)驗(yan)。對(dui)于(yu)產(chan)品標準(zhun)中引用標準(zhun)的(de)變更,實(shi)(shi)驗(yan)室(shi)(shi)(shi)更應(ying)關注,以免采用作廢標準(zhun)開展(zhan)檢(jian)(jian)驗(yan)而(er)(er)造成(cheng)檢(jian)(jian)驗(yan)結果的(de)誤判和(he)可(ke)能(neng)帶來的(de)檢(jian)(jian)驗(yan)風險。

NO.3

亂用CNAS、CMA、標識

很多實(shi)(shi)驗室通過了(le)CNAS認(ren)可,也通過了(le)實(shi)(shi)驗室資質(zhi)認(ren)定,而(er)這兩(liang)個認(ren)可不在(zai)同一時(shi)(shi)間(jian)進行認(ren)可,當申請擴項(xiang)或標(biao)準變更時(shi)(shi),往往是(shi)一個通過了(le),而(er)另(ling)一個還要過段時(shi)(shi)間(jian)才認(ren)可。有部(bu)分實(shi)(shi)驗室尤其(qi)是(shi)部(bu)分中小實(shi)(shi)驗室,取(qu)得能(neng)(neng)力(li)范圍以CMA為主,CNAS的(de)(de)能(neng)(neng)力(li)范圍很小,而(er)檢(jian)(jian)驗報告的(de)(de)封面(mian)一般(ban)是(shi)將幾個標(biao)識均直接印在(zai)封面(mian)上,這使得實(shi)(shi)驗室誤用標(biao)識。因此,實(shi)(shi)驗室應按通過的(de)(de)能(neng)(neng)力(li)范圍分別印制(zhi)檢(jian)(jian)驗封面(mian),按規定使用。


PART 02

設備及環(huan)境設施不(bu)能滿足標準(zhun)要求


設(she)(she)(she)備(bei)(bei)及環境(jing)設(she)(she)(she)施(shi)是(shi)實驗室開展檢驗的(de)必備(bei)(bei)工具(ju),設(she)(she)(she)備(bei)(bei)及環境(jing)設(she)(she)(she)施(shi)是(shi)否滿足標(biao)準,將直(zhi)接影響(xiang)(xiang)數(shu)據的(de)準確性,對檢驗結(jie)果和判定有(you)重大影響(xiang)(xiang)。設(she)(she)(she)備(bei)(bei)及環境(jing)設(she)(she)(she)施(shi)不(bu)能滿足要(yao)求(qiu)的(de)原因主要(yao)有(you):

NO.1

量值溯源未按規定

儀(yi)器(qi)(qi)設(she)備(bei)的量(liang)值溯源是(shi)保證(zheng)(zheng)其測量(liang)準(zhun)(zhun)確性的主要(yao)手段之(zhi)(zhi)一,按(an)照(zhao)實(shi)(shi)驗室(shi)(shi)資質認定(ding)(ding)評審準(zhun)(zhun)則(ze)(ze)要(yao)求,儀(yi)器(qi)(qi)設(she)備(bei)使用(yong)(yong)前應經(jing)過檢定(ding)(ding)或校(xiao)(xiao)(xiao)準(zhun)(zhun),必要(yao)時,在二次檢定(ding)(ding)或校(xiao)(xiao)(xiao)準(zhun)(zhun)之(zhi)(zhi)間應進(jin)行期間核查,以保證(zheng)(zheng)數據的準(zhun)(zhun)確性。但(dan)部分實(shi)(shi)驗室(shi)(shi)未(wei)按(an)規(gui)定(ding)(ding)將儀(yi)器(qi)(qi)送計量(liang)部門(men)進(jin)行檢定(ding)(ding)或校(xiao)(xiao)(xiao)準(zhun)(zhun),造成(cheng)儀(yi)器(qi)(qi)失準(zhun)(zhun),還有(you)個別檢定(ding)(ding)/校(xiao)(xiao)(xiao)準(zhun)(zhun)實(shi)(shi)驗室(shi)(shi)不(bu)(bu)經(jing)檢定(ding)(ding)/校(xiao)(xiao)(xiao)準(zhun)(zhun)就出具(ju)證(zheng)(zheng)書。實(shi)(shi)驗室(shi)(shi)內經(jing)常(chang)會(hui)有(you)儀(yi)器(qi)(qi)設(she)備(bei)是(shi)沒有(you)檢定(ding)(ding)規(gui)程(cheng)或校(xiao)(xiao)(xiao)準(zhun)(zhun)方(fang)法(fa),計量(liang)部門(men)往(wang)往(wang)圖省事,僅(jin)對儀(yi)器(qi)(qi)使用(yong)(yong)的計量(liang)器(qi)(qi)具(ju)進(jin)行檢定(ding)(ding)或校(xiao)(xiao)(xiao)準(zhun)(zhun),而其總體設(she)備(bei)是(shi)否合格則(ze)(ze)不(bu)(bu)做綜合判定(ding)(ding),使得設(she)備(bei)顯示(shi)的數據是(shi)否準(zhun)(zhun)確不(bu)(bu)得而知。如果此時不(bu)(bu)采用(yong)(yong)能(neng)力(li)驗證(zheng)(zheng)或實(shi)(shi)驗室(shi)(shi)比對的方(fang)法(fa)對儀(yi)器(qi)(qi)進(jin)行驗證(zheng)(zheng),則(ze)(ze)會(hui)帶來(lai)很大的風險。

NO.2

設備精(jing)度下降(jiang)

有的(de)(de)檢(jian)(jian)驗(yan)(yan)機(ji)構(gou)(gou),尤其是(shi)中小型檢(jian)(jian)驗(yan)(yan)機(ji)構(gou)(gou),由于資金的(de)(de)不足,使得(de)設(she)備(bei)長期(qi)服役,得(de)不到及時更(geng)(geng)新(xin)。由于設(she)備(bei)使用(yong)(yong)年限(xian)過長,或使用(yong)(yong)環境惡劣(lie),設(she)備(bei)的(de)(de)精度(du)下(xia)降,檢(jian)(jian)驗(yan)(yan)數據的(de)(de)可信度(du)下(xia)降。因此,實驗(yan)(yan)室應(ying)(ying)及時更(geng)(geng)新(xin)設(she)備(bei),當設(she)備(bei)一(yi)時不能更(geng)(geng)新(xin),應(ying)(ying)增加(jia)校(xiao)準的(de)(de)頻次(ci)、做期(qi)間核查(cha)、采用(yong)(yong)實驗(yan)(yan)室間比對或設(she)備(bei)間比對等方式驗(yan)(yan)證(zheng)設(she)備(bei)的(de)(de)可靠(kao)(kao)性(xing),以保證(zheng)檢(jian)(jian)測數據準確可靠(kao)(kao)。

NO.3

環境設施不符合(he)標(biao)準(zhun)要(yao)求

很(hen)多(duo)試(shi)驗(yan)(yan)對(dui)環(huan)境設施的(de)(de)要求是很(hen)高的(de)(de),對(dui)檢驗(yan)(yan)結果的(de)(de)影響很(hen)大(da),但部(bu)分檢驗(yan)(yan)機構對(dui)環(huan)境設施不是很(hen)重視(shi),不能很(hen)好地滿足檢驗(yan)(yan)的(de)(de)要求。如:水(shui)泥(ni)檢驗(yan)(yan)的(de)(de)水(shui)養(yang)護,水(shui)的(de)(de)溫(wen)度(du)規定為(20±1)℃,超(chao)出標準(zhun)規定的(de)(de)溫(wen)度(du)范圍,尤其是超(chao)出溫(wen)度(du)較(jiao)多(duo)時(shi),對(dui)檢驗(yan)(yan)結果影響就會很(hen)大(da)。而我們在(zai)評審(shen)中發(fa)現(xian),部(bu)分水(shui)泥(ni)實驗(yan)(yan)室中,水(shui)養(yang)護都是在(zai)水(shui)池(chi)中進行(xing),水(shui)溫(wen)低了(le)加(jia)熱水(shui),水(shui)溫(wen)高了(le)加(jia)冷水(shui),這(zhe)樣的(de)(de)溫(wen)控方(fang)式無法保(bao)證水(shui)溫(wen)控制精度(du),其養(yang)護后的(de)(de)檢測(ce)數據也是不準(zhun)確(que)(que)的(de)(de)。因此,對(dui)環(huan)境設施要求高的(de)(de)試(shi)驗(yan)(yan),實驗(yan)(yan)室應確(que)(que)保(bao)檢測(ce)的(de)(de)環(huan)境設施符合標準(zhun)要求。


PART 03

檢測過程(cheng)質(zhi)量缺(que)乏有(you)效控制


由于檢測過程(cheng)不規范而產生(sheng)的(de)檢驗(yan)結論不正確(que)或數據不準確(que)也(ye)時(shi)有發(fa)生(sheng),主(zhu)要表現在:

NO.1

檢驗(yan)和計算(suan)粗心(xin)大(da)意

檢(jian)驗(yan)(yan)(yan)是(shi)一個需要專(zhuan)注(zhu)的(de)(de)過(guo)程(cheng),稍有疏忽(hu),就容易出(chu)(chu)現差(cha)錯。而隨著手機的(de)(de)普及,檢(jian)驗(yan)(yan)(yan)過(guo)程(cheng)中(zhong),檢(jian)驗(yan)(yan)(yan)人員在檢(jian)驗(yan)(yan)(yan)或(huo)檢(jian)驗(yan)(yan)(yan)后的(de)(de)數(shu)據計算過(guo)程(cheng)中(zhong)接(jie)聽手機的(de)(de)現象非(fei)常(chang)普遍,如此以(yi)及其他(ta)的(de)(de)粗(cu)心造成(cheng)檢(jian)驗(yan)(yan)(yan)失誤(wu)的(de)(de)案例也時有發生。檢(jian)驗(yan)(yan)(yan)和計算過(guo)程(cheng)中(zhong)粗(cu)心大意(yi)造成(cheng)的(de)(de)檢(jian)驗(yan)(yan)(yan)失誤(wu)雖不常(chang)見,但(dan)一旦出(chu)(chu)現這種情況(kuang),將直接(jie)導致(zhi)檢(jian)驗(yan)(yan)(yan)結果出(chu)(chu)現差(cha)錯。

NO.2

對可疑(yi)數據不敏感

一般而言,每一種物質都有(you)(you)其自(zi)身特性,其檢(jian)測(ce)數(shu)(shu)據(ju)應在(zai)一定(ding)范(fan)圍,如,苯板的(de)(de)導熱系(xi)數(shu)(shu)不可(ke)能(neng)為0,采用不同鋁合(he)金建(jian)筑(zhu)(zhu)型材(cai)和普通單層(ceng)玻璃(li)的(de)(de)建(jian)筑(zhu)(zhu)外(wai)窗不可(ke)能(neng)達到保溫(wen)窗的(de)(de)要求等(deng)等(deng)。當檢(jian)驗(yan)人(ren)(ren)員(yuan)或檢(jian)驗(yan)報告(gao)的(de)(de)批準(zhun)(zhun)人(ren)(ren)員(yuan)發現(xian)不符合(he)一般規律的(de)(de)可(ke)疑(yi)數(shu)(shu)據(ju)時,應對可(ke)疑(yi)數(shu)(shu)據(ju)進行復(fu)核,并查清是(shi)(shi)(shi)否(fou)儀器設備有(you)(you)問題或檢(jian)驗(yan)人(ren)(ren)員(yuan)操(cao)作失誤。能(neng)夠(gou)正確判斷數(shu)(shu)據(ju)是(shi)(shi)(shi)否(fou)可(ke)疑(yi),是(shi)(shi)(shi)建(jian)立在(zai)對被檢(jian)測(ce)產品(pin)的(de)(de)理論和檢(jian)測(ce)實踐有(you)(you)大(da)量積累的(de)(de)基(ji)礎上,這(zhe)也(ye)是(shi)(shi)(shi)一個成熟的(de)(de)檢(jian)驗(yan)人(ren)(ren)員(yuan),檢(jian)驗(yan)報告(gao)審(shen)核、批準(zhun)(zhun)人(ren)(ren)員(yuan)應有(you)(you)的(de)(de)基(ji)本(ben)素質,沒有(you)(you)長(chang)期訓練,是(shi)(shi)(shi)不可(ke)能(neng)敏感地察覺檢(jian)驗(yan)數(shu)(shu)據(ju)可(ke)疑(yi)的(de)(de)。

NO.3

臨界(jie)值的處理有(you)偏(pian)差

在(zai)檢(jian)驗(yan)過程中,由于(yu)測(ce)量(liang)不(bu)確(que)定度(du)的(de)(de)存在(zai),可(ke)能(neng)(neng)會導(dao)致(zhi)(zhi)檢(jian)驗(yan)項目(mu)在(zai)臨(lin)界值的(de)(de)判(pan)斷時有偏差。例如:涂層厚度(du),對于(yu)普通(tong)裝飾(shi)用(yong)(yong)鋁塑板(ban),由于(yu)涂層厚度(du)相對較小,測(ce)量(liang)時“0”點的(de)(de)精確(que)校(xiao)準對于(yu)處在(zai)標準規定的(de)(de)臨(lin)界狀態的(de)(de)產(chan)品而(er)言顯得尤為重要。如果(guo)用(yong)(yong)普通(tong)標準基板(ban)進行調0,則可(ke)能(neng)(neng)出現(1~2)um的(de)(de)偏差,這將(jiang)可(ke)能(neng)(neng)導(dao)致(zhi)(zhi)產(chan)品由“合(he)格(ge)”滑(hua)向(xiang)“不(bu)合(he)格(ge)”邊緣。對于(yu)普通(tong)裝飾(shi)用(yong)(yong)鋁塑板(ban),可(ke)以(yi)(yi)將(jiang)產(chan)品除去涂層,在(zai)其裸露的(de)(de)基材(cai)上(shang)進行調0,以(yi)(yi)保證結(jie)(jie)果(guo)的(de)(de)準確(que)客(ke)觀(guan)性。因此,對于(yu)有臨(lin)界值的(de)(de)檢(jian)驗(yan)結(jie)(jie)果(guo),應組織由不(bu)同檢(jian)驗(yan)人員或者儀(yi)器設備進行多次的(de)(de)比對試驗(yan),確(que)保檢(jian)驗(yan)結(jie)(jie)果(guo)科學公(gong)正。

NO.4

對(dui)標(biao)準理解有偏差(cha)

檢(jian)驗(yan)是一項(xiang)很嚴謹(jin)的工作(zuo),個別檢(jian)驗(yan)人員(yuan)對于(yu)標準的理解和使用(yong)不(bu)正(zheng)確也直接影(ying)響了(le)檢(jian)驗(yan)結果的準確性。例(li)如:氟碳涂(tu)層(ceng)普(pu)通(tong)裝(zhuang)飾板檢(jian)測,GB/T22412-2008規定(ding),對于(yu)氟碳涂(tu)層(ceng)普(pu)通(tong)裝(zhuang)飾用(yong)鋁塑板,其涂(tu)層(ceng)性能(neng)的檢(jian)測應按照GB/T17748-2008進行。試(shi)驗(yan)中往往容易將“普(pu)通(tong)裝(zhuang)飾用(yong)”的概念先入為主,而忽略了(le)“其為氟碳涂(tu)層(ceng)”的事實,導致采用(yong)檢(jian)驗(yan)標準不(bu)正(zheng)確,最終導致檢(jian)驗(yan)結果失效。

NO.5

新上崗檢驗(yan)員缺乏有效監督

近年來,許(xu)多檢(jian)(jian)驗(yan)(yan)(yan)機構開(kai)展了新一輪的(de)(de)擴張,使(shi)(shi)得有經驗(yan)(yan)(yan)的(de)(de)檢(jian)(jian)驗(yan)(yan)(yan)人員嚴重(zhong)缺(que)(que)乏(fa),個別實驗(yan)(yan)(yan)室(shi)(shi)新進人員僅(jin)僅(jin)通過(guo)幾個月的(de)(de)培訓就上(shang)崗(gang)(gang)開(kai)展檢(jian)(jian)驗(yan)(yan)(yan)工作,這類(lei)檢(jian)(jian)驗(yan)(yan)(yan)員對檢(jian)(jian)驗(yan)(yan)(yan)不太熟練(lian),對異常數據缺(que)(que)乏(fa)敏感,而又對這類(lei)人員缺(que)(que)乏(fa)有效(xiao)的(de)(de)監(jian)督(du),使(shi)(shi)得他們出(chu)現錯誤(wu)的(de)(de)可能性遠遠超過(guo)成熟員工。因(yin)(yin)此(ci),使(shi)(shi)用經驗(yan)(yan)(yan)不足而又缺(que)(que)少監(jian)督(du)的(de)(de)新上(shang)崗(gang)(gang)檢(jian)(jian)驗(yan)(yan)(yan)員,潛在風(feng)險較大。因(yin)(yin)此(ci),要按照實驗(yan)(yan)(yan)室(shi)(shi)資(zi)質認定評審準則的(de)(de)要求,對使(shi)(shi)用在培人員應(ying)(ying)有足夠的(de)(de)監(jian)督(du)。實驗(yan)(yan)(yan)室(shi)(shi)在使(shi)(shi)用新上(shang)崗(gang)(gang)人員或轉(zhuan)崗(gang)(gang)人員時,除應(ying)(ying)考核上(shang)崗(gang)(gang)外(wai),檢(jian)(jian)驗(yan)(yan)(yan)時實驗(yan)(yan)(yan)室(shi)(shi)監(jian)督(du)員應(ying)(ying)加強監(jian)督(du),防止出(chu)現檢(jian)(jian)驗(yan)(yan)(yan)失誤(wu)。


PART 04

檢驗原始記錄不規范缺少可追溯性


檢(jian)(jian)驗(yan)(yan)原(yuan)(yuan)始(shi)記(ji)錄(lu)不(bu)(bu)規范,雖(sui)然不(bu)(bu)會改變檢(jian)(jian)驗(yan)(yan)結果,但原(yuan)(yuan)始(shi)記(ji)錄(lu)是實(shi)(shi)(shi)驗(yan)(yan)室(shi)檢(jian)(jian)驗(yan)(yan)過程的證明(ming)材料,一旦實(shi)(shi)(shi)驗(yan)(yan)室(shi)與檢(jian)(jian)驗(yan)(yan)委(wei)托(tuo)方或相關第三(san)方發生糾紛時(shi),檢(jian)(jian)驗(yan)(yan)原(yuan)(yuan)始(shi)記(ji)錄(lu)就不(bu)(bu)能(neng)起到證據的作用,將實(shi)(shi)(shi)驗(yan)(yan)室(shi)置于危險境地。每個實(shi)(shi)(shi)驗(yan)(yan)室(shi)都會按實(shi)(shi)(shi)驗(yan)(yan)室(shi)資質認定評審(shen)準則的規定,制(zhi)訂自己的記(ji)錄(lu)管理規定,但個別實(shi)(shi)(shi)驗(yan)(yan)室(shi)不(bu)(bu)能(neng)很好地執行,表現在:

NO.1

檢驗樣(yang)品的準備、處置和制備記錄不全(quan)

檢(jian)(jian)驗(yan)(yan)原(yuan)始記(ji)(ji)錄(lu)(lu)(lu)最基本的(de)(de)(de)(de)要(yao)求是將觀(guan)察(cha)到(dao)的(de)(de)(de)(de)情(qing)況(kuang)、數據加以記(ji)(ji)錄(lu)(lu)(lu),這(zhe)里指的(de)(de)(de)(de)觀(guan)察(cha)到(dao)的(de)(de)(de)(de)情(qing)況(kuang)包括從樣品的(de)(de)(de)(de)準(zhun)備、處置和(he)制備開始到(dao)檢(jian)(jian)驗(yan)(yan)結束所(suo)觀(guan)察(cha)到(dao)的(de)(de)(de)(de)全過(guo)程(cheng)。實(shi)驗(yan)(yan)室往(wang)往(wang)對(dui)(dui)檢(jian)(jian)驗(yan)(yan)過(guo)程(cheng)觀(guan)察(cha)到(dao)的(de)(de)(de)(de)情(qing)況(kuang)記(ji)(ji)錄(lu)(lu)(lu)比較詳細,但對(dui)(dui)樣品的(de)(de)(de)(de)準(zhun)備、處置和(he)制備過(guo)程(cheng),如樣品在恒(heng)溫恒(heng)濕間的(de)(de)(de)(de)等溫過(guo)程(cheng)、水泥的(de)(de)(de)(de)水養護過(guo)程(cheng)等過(guo)程(cheng)記(ji)(ji)錄(lu)(lu)(lu)不(bu)全,甚至不(bu)予記(ji)(ji)錄(lu)(lu)(lu)。按照“實(shi)驗(yan)(yan)室記(ji)(ji)錄(lu)(lu)(lu)應及(ji)(ji)時、準(zhun)確、完整”的(de)(de)(de)(de)要(yao)求,檢(jian)(jian)驗(yan)(yan)樣品的(de)(de)(de)(de)準(zhun)備、處置和(he)制備,也(ye)是檢(jian)(jian)驗(yan)(yan)的(de)(de)(de)(de)過(guo)程(cheng),也(ye)應及(ji)(ji)時、準(zhun)確、完整地(di)加以記(ji)(ji)錄(lu)(lu)(lu),同(tong)時,對(dui)(dui)檢(jian)(jian)驗(yan)(yan)員要(yao)加強教育,要(yao)有完整準(zhun)確地(di)記(ji)(ji)錄(lu)(lu)(lu)原(yuan)始記(ji)(ji)錄(lu)(lu)(lu)的(de)(de)(de)(de)意識(shi)。

NO.2

引用數據缺(que)少可追溯性

檢(jian)驗(yan)后的(de)計算過程中往往需(xu)要引(yin)(yin)(yin)(yin)(yin)用(yong)(yong)一(yi)些(xie)常數(shu)或系(xi)數(shu)。所有引(yin)(yin)(yin)(yin)(yin)用(yong)(yong)數(shu)據都應有出(chu)(chu)處(chu),常數(shu)主要是標(biao)準(zhun)(zhun)中給出(chu)(chu),系(xi)數(shu)則是在(zai)(zai)檢(jian)驗(yan)前作出(chu)(chu)標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)后得(de)出(chu)(chu),標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)不(bu)(bu)(bu)是做(zuo)出(chu)(chu)一(yi)次后永遠使(shi)用(yong)(yong),而(er)是應定期做(zuo)標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian),因此,在(zai)(zai)使(shi)用(yong)(yong)標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)時,應在(zai)(zai)原始(shi)記錄(lu)(lu)(lu)中附(fu)上本(ben)次檢(jian)測使(shi)用(yong)(yong)的(de)標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)或注明(ming)(ming)標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)編(bian)號(hao)。而(er)有的(de)實驗(yan)室在(zai)(zai)記錄(lu)(lu)(lu)原始(shi)記錄(lu)(lu)(lu)時,并不(bu)(bu)(bu)將標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)附(fu)在(zai)(zai)原始(shi)記錄(lu)(lu)(lu)中或在(zai)(zai)原始(shi)記錄(lu)(lu)(lu)中注明(ming)(ming)出(chu)(chu)處(chu),使(shi)其(qi)引(yin)(yin)(yin)(yin)(yin)用(yong)(yong)的(de)數(shu)據不(bu)(bu)(bu)具有可追溯(su)性(xing)。因此,檢(jian)驗(yan)人員(yuan)在(zai)(zai)記錄(lu)(lu)(lu)檢(jian)驗(yan)原始(shi)記錄(lu)(lu)(lu)時,應將引(yin)(yin)(yin)(yin)(yin)用(yong)(yong)的(de)標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)附(fu)在(zai)(zai)原始(shi)記錄(lu)(lu)(lu)中,或將引(yin)(yin)(yin)(yin)(yin)用(yong)(yong)的(de)標(biao)準(zhun)(zhun)曲(qu)(qu)線(xian)的(de)編(bian)號(hao)在(zai)(zai)原始(shi)記錄(lu)(lu)(lu)中注明(ming)(ming),使(shi)得(de)原始(shi)記錄(lu)(lu)(lu)中的(de)引(yin)(yin)(yin)(yin)(yin)用(yong)(yong)數(shu)據具有可追溯(su)性(xing)。

NO.3

從(cong)筆記本上轉抄檢驗記錄(lu)

檢(jian)驗(yan)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)錄(lu)(lu)(lu)是原(yuan)(yuan)始(shi)(shi)(shi)的(de)觀(guan)察記(ji)(ji)錄(lu)(lu)(lu),應該在(zai)觀(guan)察時實(shi)(shi)時記(ji)(ji)錄(lu)(lu)(lu),有(you)些(xie)檢(jian)驗(yan)員(yuan)出于自己(ji)保留數據的(de)原(yuan)(yuan)因(yin)(yin),也(ye)有(you)些(xie)檢(jian)驗(yan)員(yuan)出于保持(chi)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)錄(lu)(lu)(lu)干凈整潔的(de)原(yuan)(yuan)因(yin)(yin),養成(cheng)了(le)將原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)錄(lu)(lu)(lu)先記(ji)(ji)錄(lu)(lu)(lu)在(zai)筆(bi)記(ji)(ji)本(ben)上(shang),過(guo)后再(zai)轉(zhuan)抄(chao)(chao)到格(ge)式化的(de)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)錄(lu)(lu)(lu)上(shang)。因(yin)(yin)此,實(shi)(shi)驗(yan)室(shi)有(you)必要要求檢(jian)驗(yan)人(ren)員(yuan)將記(ji)(ji)錄(lu)(lu)(lu)及時記(ji)(ji)錄(lu)(lu)(lu)在(zai)受控(kong)的(de)格(ge)式化的(de)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)錄(lu)(lu)(lu)表(biao)式中(zhong),不得先記(ji)(ji)錄(lu)(lu)(lu)在(zai)筆(bi)記(ji)(ji)本(ben)上(shang)然后轉(zhuan)抄(chao)(chao)到格(ge)式化的(de)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)錄(lu)(lu)(lu)上(shang)。


PART 05

檢驗報告的錯誤


檢(jian)驗報(bao)告(gao)是檢(jian)驗機構(gou)交給客戶的(de)最終產品,因(yin)此檢(jian)驗報(bao)告(gao)質量也應該(gai)是實驗室重點(dian)關注的(de)內容(rong)之一(yi)。檢(jian)驗報(bao)告(gao)的(de)錯(cuo)誤通常有以下兩(liang)種表現:

NO.1

報告編(bian)制錯誤

檢驗(yan)(yan)報告(gao)編(bian)制(zhi)人員(yuan)(yuan)在(zai)(zai)編(bian)制(zhi)檢驗(yan)(yan)報告(gao)過(guo)(guo)程中,經常會因為疏忽出現輸入(ru)(ru)性錯誤(wu),如:技術(shu)要求、實測數據、單項判(pan)定等文字(zi)或數字(zi)輸入(ru)(ru)錯誤(wu),造(zao)成(cheng)(cheng)誤(wu)判(pan);委托檢驗(yan)(yan)日期(qi)、樣品生(sheng)產日期(qi)、檢驗(yan)(yan)日期(qi)等日期(qi)輸入(ru)(ru)錯誤(wu),造(zao)成(cheng)(cheng)時(shi)間(jian)邏輯上(shang)的(de)(de)問題。當前,絕大多數實驗(yan)(yan)室都采(cai)用業務管理網(wang)絡系(xi)統編(bian)制(zhi)檢驗(yan)(yan)報告(gao),對(dui)于時(shi)間(jian)邏輯上(shang)的(de)(de)問題,可(ke)以通過(guo)(guo)在(zai)(zai)系(xi)統上(shang)進行(xing)時(shi)間(jian)關聯(lian)提(ti)醒(xing)設置,對(dui)不符(fu)合(he)邏輯的(de)(de)時(shi)間(jian)進行(xing)提(ti)醒(xing),可(ke)有效防止(zhi)時(shi)間(jian)邏輯錯誤(wu);對(dui)其他輸入(ru)(ru)性錯誤(wu),則要通過(guo)(guo)加強報告(gao)編(bian)制(zhi)人員(yuan)(yuan)和(he)審(shen)核(he)、批準人員(yuan)(yuan)的(de)(de)責任心來解(jie)決。

NO.2

非(fei)授(shou)權人簽字

按(an)照實驗(yan)(yan)(yan)(yan)室(shi)資質認定的要求(qiu),檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao)的簽(qian)(qian)發應(ying)(ying)由授(shou)權(quan)(quan)簽(qian)(qian)字(zi)(zi)人(ren)(ren)簽(qian)(qian)發。授(shou)權(quan)(quan)簽(qian)(qian)字(zi)(zi)人(ren)(ren)應(ying)(ying)對檢(jian)(jian)(jian)測技術、結果(guo)評(ping)定、設備(bei)維(wei)護校準、記錄和報(bao)(bao)告(gao)核查程序(xu)等非(fei)常熟悉,因此,授(shou)權(quan)(quan)簽(qian)(qian)字(zi)(zi)人(ren)(ren)的授(shou)權(quan)(quan)簽(qian)(qian)字(zi)(zi)的能力(li)(li)范(fan)圍(wei)(wei)、試(shi)驗(yan)(yan)(yan)(yan)地(di)址范(fan)圍(wei)(wei)是(shi)有限制的。在(zai)實驗(yan)(yan)(yan)(yan)室(shi)運(yun)作過程中,部分非(fei)授(shou)權(quan)(quan)簽(qian)(qian)字(zi)(zi)人(ren)(ren)簽(qian)(qian)發檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao),或(huo)授(shou)權(quan)(quan)簽(qian)(qian)字(zi)(zi)人(ren)(ren)不了解自己的授(shou)權(quan)(quan)簽(qian)(qian)字(zi)(zi)能力(li)(li)范(fan)圍(wei)(wei)或(huo)試(shi)驗(yan)(yan)(yan)(yan)地(di)址范(fan)圍(wei)(wei),超越(yue)授(shou)權(quan)(quan)范(fan)圍(wei)(wei)簽(qian)(qian)發檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao),造成檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao)的錯(cuo)誤。這(zhe)種超越(yue)能力(li)(li)范(fan)圍(wei)(wei)批準檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao),違反了實驗(yan)(yan)(yan)(yan)室(shi)標識(shi)使用的規定,會使檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao)失去(qu)法律效力(li)(li)。



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