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行業動態 行業動態

分享|實驗室運行要避免這5個方面的問題

2020-10-21 作者: 瀏覽數:1227
01超范圍蓋章

按照《計量(liang)(liang)(liang)法(fa)(fa)》規定,對社會出具(ju)具(ju)有證明作(zuo)用(yong)的(de)(de)數據實(shi)(shi)驗室必須(xu)經過實(shi)(shi)驗室資質(zhi)(zhi)認定(計量(liang)(liang)(liang)認證)和(he)/或(huo)CNAS認可(ke),而(er)資質(zhi)(zhi)認定和(he)/或(huo)CNAS認可(ke)是限定實(shi)(shi)驗室能力(li)(li)范(fan)(fan)圍(wei)(wei)的(de)(de),實(shi)(shi)驗室只能在(zai)(zai)能力(li)(li)范(fan)(fan)圍(wei)(wei)限定的(de)(de)產(chan)(chan)品(pin)(參數)范(fan)(fan)圍(wei)(wei)內出具(ju)帶相應標識的(de)(de)檢(jian)驗報(bao)告,檢(jian)驗使用(yong)的(de)(de)標準不在(zai)(zai)能力(li)(li)范(fan)(fan)圍(wei)(wei)者(zhe),我們稱之為超(chao)范(fan)(fan)圍(wei)(wei)檢(jian)驗。國(guo)家質(zhi)(zhi)檢(jian)總局(ju)發(fa)(fa)布執行的(de)(de)《產(chan)(chan)品(pin)質(zhi)(zhi)量(liang)(liang)(liang)監(jian)督抽(chou)查管(guan)理辦法(fa)(fa)》、《產(chan)(chan)品(pin)質(zhi)(zhi)量(liang)(liang)(liang)檢(jian)驗機(ji)構工(gong)作(zuo)質(zhi)(zhi)量(liang)(liang)(liang)分類監(jian)管(guan)辦法(fa)(fa)》以及(ji)其(qi)他(ta)規定中(zhong)也都明確規定實(shi)(shi)驗室不得超(chao)能力(li)(li)范(fan)(fan)圍(wei)(wei)開(kai)展檢(jian)測工(gong)作(zuo),但在(zai)(zai)實(shi)(shi)際工(gong)作(zuo)過程中(zhong),個別檢(jian)驗機(ji)構超(chao)能力(li)(li)范(fan)(fan)圍(wei)(wei)檢(jian)測情況(kuang)時有發(fa)(fa)生(sheng)。超(chao)范(fan)(fan)圍(wei)(wei)檢(jian)驗主要有三種形式:

1.故(gu)意超(chao)能(neng)(neng)力(li)范(fan)圍檢驗(yan)(yan)(yan)實驗(yan)(yan)(yan)室(shi)或實驗(yan)(yan)(yan)室(shi)中個別(bie)人(ren)(ren)員為(wei)滿足客戶要求(qiu),為(wei)實驗(yan)(yan)(yan)室(shi)爭取經濟利(li)益,對(dui)不在能(neng)(neng)力(li)范(fan)圍內(nei)的(de)產(chan)品開(kai)展檢驗(yan)(yan)(yan)工作,出具(ju)帶標識的(de)檢驗(yan)(yan)(yan)報(bao)告;或實驗(yan)(yan)(yan)室(shi)人(ren)(ren)員以為(wei)采用標準中的(de)個別(bie)標準在能(neng)(neng)力(li)范(fan)圍內(nei),誤將產(chan)品進(jin)行檢驗(yan)(yan)(yan)并出具(ju)帶標識的(de)檢驗(yan)(yan)(yan)報(bao)告。

近年來,質(zhi)檢(jian)總局、認(ren)監委、省市質(zhi)監局對超能(neng)力(li)(li)范(fan)圍檢(jian)測(ce)的(de)處罰都非常嚴(yan)厲,甚至(zhi)停止(zhi)個別實(shi)驗(yan)室的(de)檢(jian)測(ce)活動。因此,實(shi)驗(yan)室應將超能(neng)力(li)(li)范(fan)圍檢(jian)測(ce)的(de)后果(guo)向每一(yi)位員工宣(xuan)傳,不能(neng)為經濟利益(yi)或所謂的(de)為企業(ye)著(zhu)想而故意(yi)超能(neng)力(li)(li)范(fan)圍檢(jian)測(ce);同時實(shi)驗(yan)室還應認(ren)真梳理實(shi)驗(yan)室的(de)能(neng)力(li)(li)范(fan)圍,對確實(shi)有(you)設備、具備檢(jian)驗(yan)能(neng)力(li)(li)而不在能(neng)力(li)(li)范(fan)圍內的(de)標準,應盡快進行擴項,提高為企業(ye)服務的(de)能(neng)力(li)(li)。

2.標(biao)(biao)準(zhun)(zhun)(zhun)變(bian)更后未及(ji)時(shi)進行(xing)(xing)(xing)能(neng)力確認(ren)(ren)近年來(lai),不管是產(chan)品標(biao)(biao)準(zhun)(zhun)(zhun)還(huan)是方法(fa)標(biao)(biao)準(zhun)(zhun)(zhun),標(biao)(biao)準(zhun)(zhun)(zhun)的(de)(de)變(bian)更非常頻繁。按照實(shi)驗(yan)室(shi)資質(zhi)認(ren)(ren)定(ding)評審(shen)準(zhun)(zhun)(zhun)則(ze)的(de)(de)規定(ding),實(shi)驗(yan)室(shi)使用的(de)(de)文件必須是現行(xing)(xing)(xing)有(you)效的(de)(de),因(yin)此,實(shi)驗(yan)室(shi)不能(neng)使用作廢(fei)標(biao)(biao)準(zhun)(zhun)(zhun)開(kai)(kai)展(zhan)檢測(ce)工作。實(shi)驗(yan)室(shi)采用新(xin)(xin)標(biao)(biao)準(zhun)(zhun)(zhun)開(kai)(kai)展(zhan)工作,則(ze)必須及(ji)時(shi)到實(shi)驗(yan)室(shi)資質(zhi)認(ren)(ren)定(ding)和/或(huo)CNAS認(ren)(ren)可的(de)(de)發證機構進行(xing)(xing)(xing)標(biao)(biao)準(zhun)(zhun)(zhun)變(bian)更。目前,有(you)的(de)(de)實(shi)驗(yan)室(shi)怕麻煩,往(wang)(wang)往(wang)(wang)等到復評審(shen)或(huo)監督(du)評審(shen)時(shi)才(cai)進行(xing)(xing)(xing)標(biao)(biao)準(zhun)(zhun)(zhun)變(bian)更。在新(xin)(xin)標(biao)(biao)準(zhun)(zhun)(zhun)開(kai)(kai)始實(shi)施到通過(guo)實(shi)驗(yan)室(shi)復評審(shen)或(huo)監督(du)評審(shen)之間(jian)如果按新(xin)(xin)標(biao)(biao)準(zhun)(zhun)(zhun)開(kai)(kai)展(zhan)檢驗(yan)工作,則(ze)是超范圍檢驗(yan)。

還(huan)有(you)(you)一種隱(yin)性超能(neng)力范(fan)圍的(de)情形。實驗(yan)(yan)(yan)(yan)室(shi)通(tong)過(guo)的(de)檢(jian)驗(yan)(yan)(yan)(yan)能(neng)力范(fan)圍時,實際隱(yin)含的(de)意(yi)思是包括(kuo)產(chan)品(pin)標(biao)準(zhun)中引用(yong)標(biao)準(zhun)也(ye)通(tong)過(guo)實驗(yan)(yan)(yan)(yan)室(shi)評審。當其引用(yong)標(biao)準(zhun)出現(xian)標(biao)準(zhun)變(bian)(bian)更尤其是檢(jian)驗(yan)(yan)(yan)(yan)方法(fa)、環境設(she)施有(you)(you)實際變(bian)(bian)化的(de)情況下,其產(chan)品(pin)檢(jian)驗(yan)(yan)(yan)(yan)的(de)實際檢(jian)驗(yan)(yan)(yan)(yan)能(neng)力有(you)(you)可能(neng)出現(xian)變(bian)(bian)化。這種變(bian)(bian)化,可能(neng)會導致實驗(yan)(yan)(yan)(yan)室(shi)不(bu)能(neng)按現(xian)行有(you)(you)效標(biao)準(zhun)正常開(kai)展(zhan)檢(jian)驗(yan)(yan)(yan)(yan)工作。我們把這種變(bian)(bian)化稱之為“隱(yin)性的(de)”超范(fan)圍檢(jian)驗(yan)(yan)(yan)(yan)。

由于標(biao)(biao)準變更后需要重新進行能力確認(ren),個(ge)別實驗(yan)(yan)室怕麻煩(fan),往往會等到監(jian)督評審(shen)或復評審(shen)時才進行確認(ren),從而(er)導致(zhi)超能力范圍檢(jian)驗(yan)(yan)。因此(ci),實驗(yan)(yan)室應關注(zhu)和避免這種情況的發生(sheng),在能力未確認(ren)前,不(bu)得(de)使用新標(biao)(biao)準開展(zhan)檢(jian)驗(yan)(yan)。對(dui)于產品標(biao)(biao)準中引用標(biao)(biao)準的變更,實驗(yan)(yan)室更應關注(zhu),以免采用作(zuo)廢標(biao)(biao)準開展(zhan)檢(jian)驗(yan)(yan)而(er)造(zao)成檢(jian)驗(yan)(yan)結果的誤判和可(ke)能帶來的檢(jian)驗(yan)(yan)風險。

3.亂用CNAS、CMA、標(biao)識(shi)很多實(shi)驗(yan)(yan)室(shi)(shi)通過了(le)CNAS認(ren)(ren)可(ke),也通過了(le)實(shi)驗(yan)(yan)室(shi)(shi)資(zi)質認(ren)(ren)定,而(er)這(zhe)兩(liang)個(ge)認(ren)(ren)可(ke)不(bu)在同一(yi)(yi)時間進行認(ren)(ren)可(ke),當申請擴項或標(biao)準變更時,往(wang)往(wang)是(shi)一(yi)(yi)個(ge)通過了(le),而(er)另一(yi)(yi)個(ge)還要過段時間才(cai)認(ren)(ren)可(ke)。有部(bu)分實(shi)驗(yan)(yan)室(shi)(shi)尤其是(shi)部(bu)分中小實(shi)驗(yan)(yan)室(shi)(shi),取得能力(li)范圍(wei)以CMA為主,CNAS的能力(li)范圍(wei)很小,而(er)檢驗(yan)(yan)報(bao)告的封(feng)面(mian)(mian)一(yi)(yi)般是(shi)將幾個(ge)標(biao)識(shi)均直(zhi)接(jie)印在封(feng)面(mian)(mian)上,這(zhe)使得實(shi)驗(yan)(yan)室(shi)(shi)誤用標(biao)識(shi)。因此,實(shi)驗(yan)(yan)室(shi)(shi)應按通過的能力(li)范圍(wei)分別印制(zhi)檢驗(yan)(yan)封(feng)面(mian)(mian),按規定使用。


02設備及環境設施不能(neng)滿足標準要求

設備及環境(jing)設施是實驗室開(kai)展檢驗的必備工具,設備及環境(jing)設施是否滿足標準,將直接影(ying)響數據的準確性,對檢驗結果和判定有(you)重大影(ying)響。設備及環境(jing)設施不(bu)能滿足要求的原因主要有(you):

1.量(liang)值溯(su)源未(wei)按規(gui)(gui)定(ding)(ding)(ding)儀(yi)器(qi)設(she)(she)備(bei)的量(liang)值溯(su)源是(shi)(shi)保證(zheng)(zheng)(zheng)其(qi)測量(liang)準確(que)性的主要(yao)手段(duan)之一,按照實(shi)驗(yan)(yan)室(shi)(shi)(shi)資(zi)質認定(ding)(ding)(ding)評審(shen)準則要(yao)求,儀(yi)器(qi)設(she)(she)備(bei)使(shi)用(yong)前應經(jing)過(guo)檢(jian)(jian)定(ding)(ding)(ding)或(huo)(huo)校(xiao)準,必要(yao)時,在二次檢(jian)(jian)定(ding)(ding)(ding)或(huo)(huo)校(xiao)準之間(jian)應進行期間(jian)核查,以保證(zheng)(zheng)(zheng)數(shu)據的準確(que)性。但部(bu)分實(shi)驗(yan)(yan)室(shi)(shi)(shi)未(wei)按規(gui)(gui)定(ding)(ding)(ding)將(jiang)儀(yi)器(qi)送計量(liang)部(bu)門進行檢(jian)(jian)定(ding)(ding)(ding)或(huo)(huo)校(xiao)準,造成儀(yi)器(qi)失準,還有個(ge)別檢(jian)(jian)定(ding)(ding)(ding)/校(xiao)準實(shi)驗(yan)(yan)室(shi)(shi)(shi)不(bu)經(jing)檢(jian)(jian)定(ding)(ding)(ding)/校(xiao)準就(jiu)出具證(zheng)(zheng)(zheng)書。實(shi)驗(yan)(yan)室(shi)(shi)(shi)內經(jing)常會有儀(yi)器(qi)設(she)(she)備(bei)是(shi)(shi)沒有檢(jian)(jian)定(ding)(ding)(ding)規(gui)(gui)程或(huo)(huo)校(xiao)準方(fang)法,計量(liang)部(bu)門往(wang)往(wang)圖(tu)省事(shi),僅對儀(yi)器(qi)使(shi)用(yong)的計量(liang)器(qi)具進行檢(jian)(jian)定(ding)(ding)(ding)或(huo)(huo)校(xiao)準,而(er)(er)其(qi)總體(ti)設(she)(she)備(bei)是(shi)(shi)否合(he)格則不(bu)做(zuo)綜合(he)判定(ding)(ding)(ding),使(shi)得設(she)(she)備(bei)顯示的數(shu)據是(shi)(shi)否準確(que)不(bu)得而(er)(er)知。如果此時不(bu)采(cai)用(yong)能力驗(yan)(yan)證(zheng)(zheng)(zheng)或(huo)(huo)實(shi)驗(yan)(yan)室(shi)(shi)(shi)比對的方(fang)法對儀(yi)器(qi)進行驗(yan)(yan)證(zheng)(zheng)(zheng),則會帶來(lai)很大的風險。

2.設(she)(she)備(bei)(bei)(bei)(bei)精(jing)度(du)下(xia)(xia)降有的(de)檢(jian)驗(yan)機構(gou),尤其是(shi)中小型檢(jian)驗(yan)機構(gou),由于資金(jin)的(de)不足(zu),使得設(she)(she)備(bei)(bei)(bei)(bei)長(chang)期(qi)服役(yi),得不到(dao)及時(shi)更(geng)新(xin)(xin)。由于設(she)(she)備(bei)(bei)(bei)(bei)使用(yong)年限過長(chang),或(huo)使用(yong)環(huan)境惡劣,設(she)(she)備(bei)(bei)(bei)(bei)的(de)精(jing)度(du)下(xia)(xia)降,檢(jian)驗(yan)數(shu)據的(de)可(ke)信度(du)下(xia)(xia)降。因此,實驗(yan)室應(ying)及時(shi)更(geng)新(xin)(xin)設(she)(she)備(bei)(bei)(bei)(bei),當設(she)(she)備(bei)(bei)(bei)(bei)一時(shi)不能更(geng)新(xin)(xin),應(ying)增加校(xiao)準的(de)頻次(ci)、做期(qi)間(jian)核(he)查、采(cai)用(yong)實驗(yan)室間(jian)比對或(huo)設(she)(she)備(bei)(bei)(bei)(bei)間(jian)比對等方式驗(yan)證設(she)(she)備(bei)(bei)(bei)(bei)的(de)可(ke)靠性,以保證檢(jian)測數(shu)據準確可(ke)靠。

3.環境(jing)(jing)(jing)設施(shi)(shi)(shi)不符合標準(zhun)要求很(hen)多(duo)試(shi)驗(yan)對(dui)環境(jing)(jing)(jing)設施(shi)(shi)(shi)的(de)(de)(de)(de)(de)要求是(shi)(shi)很(hen)高(gao)的(de)(de)(de)(de)(de),對(dui)檢(jian)驗(yan)結果(guo)的(de)(de)(de)(de)(de)影響(xiang)很(hen)大,但部分(fen)(fen)檢(jian)驗(yan)機構(gou)對(dui)環境(jing)(jing)(jing)設施(shi)(shi)(shi)不是(shi)(shi)很(hen)重視(shi),不能很(hen)好地滿(man)足檢(jian)驗(yan)的(de)(de)(de)(de)(de)要求。如:水(shui)(shui)(shui)(shui)泥檢(jian)驗(yan)的(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)養(yang)護(hu),水(shui)(shui)(shui)(shui)的(de)(de)(de)(de)(de)溫度規定為(20±1)℃,超出標準(zhun)規定的(de)(de)(de)(de)(de)溫度范圍,尤其是(shi)(shi)超出溫度較(jiao)多(duo)時,對(dui)檢(jian)驗(yan)結果(guo)影響(xiang)就會(hui)很(hen)大。而我們在評審中(zhong)發現,部分(fen)(fen)水(shui)(shui)(shui)(shui)泥實驗(yan)室(shi)(shi)中(zhong),水(shui)(shui)(shui)(shui)養(yang)護(hu)都是(shi)(shi)在水(shui)(shui)(shui)(shui)池中(zhong)進行,水(shui)(shui)(shui)(shui)溫低了(le)(le)加熱水(shui)(shui)(shui)(shui),水(shui)(shui)(shui)(shui)溫高(gao)了(le)(le)加冷水(shui)(shui)(shui)(shui),這樣的(de)(de)(de)(de)(de)溫控方式(shi)無法(fa)保證水(shui)(shui)(shui)(shui)溫控制(zhi)精度,其養(yang)護(hu)后的(de)(de)(de)(de)(de)檢(jian)測數據也(ye)是(shi)(shi)不準(zhun)確(que)的(de)(de)(de)(de)(de)。因此,對(dui)環境(jing)(jing)(jing)設施(shi)(shi)(shi)要求高(gao)的(de)(de)(de)(de)(de)試(shi)驗(yan),實驗(yan)室(shi)(shi)應(ying)確(que)保檢(jian)測的(de)(de)(de)(de)(de)環境(jing)(jing)(jing)設施(shi)(shi)(shi)符合標準(zhun)要求。


03檢(jian)測過程質量缺(que)乏有(you)效控(kong)制

由于檢(jian)測(ce)過(guo)程不(bu)(bu)規范而產(chan)生(sheng)的檢(jian)驗(yan)結論不(bu)(bu)正確或數據(ju)不(bu)(bu)準確也時有發生(sheng),主要表現在(zai):

1.檢(jian)驗(yan)(yan)和(he)計算(suan)(suan)粗心(xin)(xin)大意(yi)檢(jian)驗(yan)(yan)是一個需要專注的(de)過程(cheng),稍(shao)有疏忽,就容(rong)易出(chu)現(xian)差錯(cuo)。而隨著手(shou)機(ji)的(de)普(pu)及,檢(jian)驗(yan)(yan)過程(cheng)中,檢(jian)驗(yan)(yan)人員(yuan)在(zai)檢(jian)驗(yan)(yan)或檢(jian)驗(yan)(yan)后的(de)數據計算(suan)(suan)過程(cheng)中接聽手(shou)機(ji)的(de)現(xian)象非常普(pu)遍(bian),如此以及其他的(de)粗心(xin)(xin)造成(cheng)檢(jian)驗(yan)(yan)失誤(wu)的(de)案(an)例也時有發生。檢(jian)驗(yan)(yan)和(he)計算(suan)(suan)過程(cheng)中粗心(xin)(xin)大意(yi)造成(cheng)的(de)檢(jian)驗(yan)(yan)失誤(wu)雖不常見,但一旦出(chu)現(xian)這種(zhong)情況,將直接導(dao)致檢(jian)驗(yan)(yan)結果出(chu)現(xian)差錯(cuo)。

2.對可(ke)(ke)(ke)疑數(shu)(shu)據(ju)不(bu)(bu)(bu)敏感(gan)一(yi)(yi)般而言(yan),每一(yi)(yi)種物(wu)質都有(you)其自身特(te)性,其檢(jian)測(ce)(ce)數(shu)(shu)據(ju)應(ying)在一(yi)(yi)定范圍,如,苯板的(de)(de)(de)(de)導熱系數(shu)(shu)不(bu)(bu)(bu)可(ke)(ke)(ke)能(neng)(neng)為0,采(cai)用不(bu)(bu)(bu)同鋁合(he)金(jin)建(jian)筑(zhu)型材和普通單層(ceng)玻璃的(de)(de)(de)(de)建(jian)筑(zhu)外窗(chuang)不(bu)(bu)(bu)可(ke)(ke)(ke)能(neng)(neng)達到保(bao)溫窗(chuang)的(de)(de)(de)(de)要求(qiu)等等。當檢(jian)驗(yan)(yan)(yan)(yan)人(ren)(ren)(ren)員或檢(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告的(de)(de)(de)(de)批(pi)準(zhun)人(ren)(ren)(ren)員發現不(bu)(bu)(bu)符合(he)一(yi)(yi)般規律的(de)(de)(de)(de)可(ke)(ke)(ke)疑數(shu)(shu)據(ju)時,應(ying)對可(ke)(ke)(ke)疑數(shu)(shu)據(ju)進行復核,并(bing)查(cha)清是否(fou)儀器設備有(you)問題或檢(jian)驗(yan)(yan)(yan)(yan)人(ren)(ren)(ren)員操(cao)作失誤。能(neng)(neng)夠正確(que)判(pan)斷數(shu)(shu)據(ju)是否(fou)可(ke)(ke)(ke)疑,是建(jian)立在對被檢(jian)測(ce)(ce)產品的(de)(de)(de)(de)理(li)論和檢(jian)測(ce)(ce)實踐(jian)有(you)大(da)量(liang)積(ji)累的(de)(de)(de)(de)基礎(chu)上,這也(ye)是一(yi)(yi)個成熟的(de)(de)(de)(de)檢(jian)驗(yan)(yan)(yan)(yan)人(ren)(ren)(ren)員,檢(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告審核、批(pi)準(zhun)人(ren)(ren)(ren)員應(ying)有(you)的(de)(de)(de)(de)基本素質,沒有(you)長期訓練,是不(bu)(bu)(bu)可(ke)(ke)(ke)能(neng)(neng)敏感(gan)地察(cha)覺檢(jian)驗(yan)(yan)(yan)(yan)數(shu)(shu)據(ju)可(ke)(ke)(ke)疑的(de)(de)(de)(de)。

3.臨界(jie)值(zhi)(zhi)的(de)處(chu)理有(you)偏(pian)差(cha)在檢驗(yan)過程中,由于(yu)測(ce)量不確(que)定(ding)度的(de)存在,可能(neng)(neng)會(hui)導致檢驗(yan)項目(mu)在臨界(jie)值(zhi)(zhi)的(de)判(pan)斷時有(you)偏(pian)差(cha)。例如(ru):涂(tu)層(ceng)(ceng)厚度,對(dui)于(yu)普通(tong)裝飾用(yong)鋁塑板(ban),由于(yu)涂(tu)層(ceng)(ceng)厚度相對(dui)較小(xiao),測(ce)量時“0”點的(de)精確(que)校(xiao)準(zhun)對(dui)于(yu)處(chu)在標準(zhun)規定(ding)的(de)臨界(jie)狀態的(de)產(chan)品(pin)而言顯(xian)得尤為重要。如(ru)果用(yong)普通(tong)標準(zhun)基(ji)板(ban)進(jin)行(xing)(xing)調(diao)0,則(ze)可能(neng)(neng)出現(1~2)um的(de)偏(pian)差(cha),這將(jiang)可能(neng)(neng)導致產(chan)品(pin)由“合(he)格”滑(hua)向(xiang)“不合(he)格”邊緣。對(dui)于(yu)普通(tong)裝飾用(yong)鋁塑板(ban),可以將(jiang)產(chan)品(pin)除去涂(tu)層(ceng)(ceng),在其裸露的(de)基(ji)材(cai)上進(jin)行(xing)(xing)調(diao)0,以保(bao)證結果的(de)準(zhun)確(que)客觀性。因此,對(dui)于(yu)有(you)臨界(jie)值(zhi)(zhi)的(de)檢驗(yan)結果,應組織由不同檢驗(yan)人(ren)員或者儀器設(she)備(bei)進(jin)行(xing)(xing)多次的(de)比對(dui)試(shi)驗(yan),確(que)保(bao)檢驗(yan)結果科學公正。

4.對標(biao)準理(li)解(jie)有偏差(cha)檢(jian)驗(yan)是(shi)一項很嚴謹(jin)的工作,個別檢(jian)驗(yan)人員(yuan)對于標(biao)準的理(li)解(jie)和(he)使用(yong)不正(zheng)確也直接(jie)影(ying)響(xiang)了檢(jian)驗(yan)結果(guo)的準確性。例如:氟碳(tan)涂(tu)層(ceng)普(pu)通(tong)裝(zhuang)飾板(ban)檢(jian)測,GB/T22412-2008規定,對于氟碳(tan)涂(tu)層(ceng)普(pu)通(tong)裝(zhuang)飾用(yong)鋁(lv)塑板(ban),其(qi)涂(tu)層(ceng)性能的檢(jian)測應按照GB/T17748-2008進行。試(shi)驗(yan)中往(wang)往(wang)容易將“普(pu)通(tong)裝(zhuang)飾用(yong)”的概(gai)念(nian)先入為主,而忽略了“其(qi)為氟碳(tan)涂(tu)層(ceng)”的事實,導致(zhi)采用(yong)檢(jian)驗(yan)標(biao)準不正(zheng)確,最終導致(zhi)檢(jian)驗(yan)結果(guo)失效。

5.新上崗(gang)(gang)檢(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan)(yuan)缺(que)乏有效(xiao)監(jian)(jian)督近年來,許(xu)多檢(jian)(jian)驗(yan)(yan)(yan)機構開展(zhan)了新一輪的擴張,使得(de)有經(jing)驗(yan)(yan)(yan)的檢(jian)(jian)驗(yan)(yan)(yan)人(ren)員(yuan)(yuan)(yuan)嚴重缺(que)乏,個別(bie)實(shi)驗(yan)(yan)(yan)室(shi)新進(jin)人(ren)員(yuan)(yuan)(yuan)僅僅通過幾個月的培(pei)訓就上崗(gang)(gang)開展(zhan)檢(jian)(jian)驗(yan)(yan)(yan)工作,這類(lei)檢(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan)(yuan)對檢(jian)(jian)驗(yan)(yan)(yan)不(bu)太熟(shu)練,對異常數據缺(que)乏敏感,而(er)又(you)對這類(lei)人(ren)員(yuan)(yuan)(yuan)缺(que)乏有效(xiao)的監(jian)(jian)督,使得(de)他們出現錯誤的可能(neng)性遠(yuan)遠(yuan)超(chao)過成熟(shu)員(yuan)(yuan)(yuan)工。因此,使用經(jing)驗(yan)(yan)(yan)不(bu)足(zu)而(er)又(you)缺(que)少監(jian)(jian)督的新上崗(gang)(gang)檢(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan)(yuan),潛(qian)在風險較大。因此,要(yao)按(an)照實(shi)驗(yan)(yan)(yan)室(shi)資質認定評審準則的要(yao)求,對使用在培(pei)人(ren)員(yuan)(yuan)(yuan)應(ying)有足(zu)夠(gou)的監(jian)(jian)督。實(shi)驗(yan)(yan)(yan)室(shi)在使用新上崗(gang)(gang)人(ren)員(yuan)(yuan)(yuan)或(huo)轉(zhuan)崗(gang)(gang)人(ren)員(yuan)(yuan)(yuan)時,除(chu)應(ying)考核上崗(gang)(gang)外,檢(jian)(jian)驗(yan)(yan)(yan)時實(shi)驗(yan)(yan)(yan)室(shi)監(jian)(jian)督員(yuan)(yuan)(yuan)應(ying)加強監(jian)(jian)督,防止(zhi)出現檢(jian)(jian)驗(yan)(yan)(yan)失誤。


04檢測原始記錄不規(gui)范(fan)缺(que)少可(ke)追溯性

檢驗(yan)(yan)(yan)原(yuan)始記(ji)(ji)錄不規(gui)范,雖然不會改變檢驗(yan)(yan)(yan)結果,但(dan)原(yuan)始記(ji)(ji)錄是實(shi)驗(yan)(yan)(yan)室檢驗(yan)(yan)(yan)過程(cheng)的證(zheng)明材料,一旦實(shi)驗(yan)(yan)(yan)室與(yu)檢驗(yan)(yan)(yan)委托方或相關第三(san)方發生糾紛時,檢驗(yan)(yan)(yan)原(yuan)始記(ji)(ji)錄就不能起到證(zheng)據的作用,將(jiang)實(shi)驗(yan)(yan)(yan)室置于危險境地(di)。每個實(shi)驗(yan)(yan)(yan)室都會按實(shi)驗(yan)(yan)(yan)室資質認定評審準則的規(gui)定,制訂自己的記(ji)(ji)錄管理規(gui)定,但(dan)個別(bie)實(shi)驗(yan)(yan)(yan)室不能很好(hao)地(di)執(zhi)行,表(biao)現在:

1.檢(jian)驗(yan)(yan)(yan)(yan)樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)備(bei)、處(chu)置(zhi)和(he)制(zhi)(zhi)備(bei)記(ji)錄(lu)(lu)(lu)(lu)(lu)不(bu)(bu)(bu)全檢(jian)驗(yan)(yan)(yan)(yan)原(yuan)始記(ji)錄(lu)(lu)(lu)(lu)(lu)最基(ji)本的(de)(de)(de)要求(qiu)是(shi)將觀察(cha)到(dao)的(de)(de)(de)情(qing)況、數據加以記(ji)錄(lu)(lu)(lu)(lu)(lu),這里指的(de)(de)(de)觀察(cha)到(dao)的(de)(de)(de)情(qing)況包括從(cong)樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)備(bei)、處(chu)置(zhi)和(he)制(zhi)(zhi)備(bei)開始到(dao)檢(jian)驗(yan)(yan)(yan)(yan)結束(shu)所(suo)觀察(cha)到(dao)的(de)(de)(de)全過(guo)程(cheng)(cheng)(cheng)(cheng)。實驗(yan)(yan)(yan)(yan)室往往對(dui)檢(jian)驗(yan)(yan)(yan)(yan)過(guo)程(cheng)(cheng)(cheng)(cheng)觀察(cha)到(dao)的(de)(de)(de)情(qing)況記(ji)錄(lu)(lu)(lu)(lu)(lu)比較詳細(xi),但(dan)對(dui)樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)備(bei)、處(chu)置(zhi)和(he)制(zhi)(zhi)備(bei)過(guo)程(cheng)(cheng)(cheng)(cheng),如樣(yang)(yang)品(pin)在恒溫(wen)恒濕間的(de)(de)(de)等(deng)溫(wen)過(guo)程(cheng)(cheng)(cheng)(cheng)、水泥(ni)的(de)(de)(de)水養護過(guo)程(cheng)(cheng)(cheng)(cheng)等(deng)過(guo)程(cheng)(cheng)(cheng)(cheng)記(ji)錄(lu)(lu)(lu)(lu)(lu)不(bu)(bu)(bu)全,甚(shen)至(zhi)不(bu)(bu)(bu)予記(ji)錄(lu)(lu)(lu)(lu)(lu)。按照“實驗(yan)(yan)(yan)(yan)室記(ji)錄(lu)(lu)(lu)(lu)(lu)應及時(shi)(shi)、準(zhun)(zhun)確(que)、完(wan)整”的(de)(de)(de)要求(qiu),檢(jian)驗(yan)(yan)(yan)(yan)樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)備(bei)、處(chu)置(zhi)和(he)制(zhi)(zhi)備(bei),也(ye)是(shi)檢(jian)驗(yan)(yan)(yan)(yan)的(de)(de)(de)過(guo)程(cheng)(cheng)(cheng)(cheng),也(ye)應及時(shi)(shi)、準(zhun)(zhun)確(que)、完(wan)整地加以記(ji)錄(lu)(lu)(lu)(lu)(lu),同時(shi)(shi),對(dui)檢(jian)驗(yan)(yan)(yan)(yan)員要加強(qiang)教育,要有完(wan)整準(zhun)(zhun)確(que)地記(ji)錄(lu)(lu)(lu)(lu)(lu)原(yuan)始記(ji)錄(lu)(lu)(lu)(lu)(lu)的(de)(de)(de)意識。

2.引(yin)用(yong)數據(ju)(ju)缺少可追溯性(xing)檢(jian)(jian)驗(yan)后(hou)的(de)計(ji)算過程中(zhong)往往需要引(yin)用(yong)一(yi)(yi)些常(chang)數或系(xi)數。所(suo)有(you)引(yin)用(yong)數據(ju)(ju)都應(ying)(ying)有(you)出處(chu),常(chang)數主要是(shi)(shi)標(biao)(biao)準(zhun)(zhun)中(zhong)給(gei)出,系(xi)數則是(shi)(shi)在(zai)檢(jian)(jian)驗(yan)前(qian)作出標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)后(hou)得出,標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)不(bu)(bu)(bu)是(shi)(shi)做(zuo)(zuo)出一(yi)(yi)次(ci)后(hou)永遠使(shi)(shi)(shi)用(yong),而是(shi)(shi)應(ying)(ying)定期做(zuo)(zuo)標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian),因此,在(zai)使(shi)(shi)(shi)用(yong)標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)時,應(ying)(ying)在(zai)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)中(zhong)附上本次(ci)檢(jian)(jian)測使(shi)(shi)(shi)用(yong)的(de)標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)或注明(ming)(ming)標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)編號(hao)。而有(you)的(de)實(shi)驗(yan)室(shi)在(zai)記(ji)(ji)(ji)錄(lu)(lu)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)時,并(bing)不(bu)(bu)(bu)將(jiang)標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)附在(zai)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)中(zhong)或在(zai)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)中(zhong)注明(ming)(ming)出處(chu),使(shi)(shi)(shi)其引(yin)用(yong)的(de)數據(ju)(ju)不(bu)(bu)(bu)具(ju)有(you)可追溯性(xing)。因此,檢(jian)(jian)驗(yan)人(ren)員在(zai)記(ji)(ji)(ji)錄(lu)(lu)檢(jian)(jian)驗(yan)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)時,應(ying)(ying)將(jiang)引(yin)用(yong)的(de)標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)附在(zai)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)中(zhong),或將(jiang)引(yin)用(yong)的(de)標(biao)(biao)準(zhun)(zhun)曲(qu)(qu)(qu)線(xian)的(de)編號(hao)在(zai)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)中(zhong)注明(ming)(ming),使(shi)(shi)(shi)得原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)中(zhong)的(de)引(yin)用(yong)數據(ju)(ju)具(ju)有(you)可追溯性(xing)。

3.從筆記(ji)(ji)(ji)(ji)(ji)(ji)本(ben)(ben)上(shang)(shang)轉抄檢(jian)(jian)驗記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)檢(jian)(jian)驗原始(shi)(shi)(shi)記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)是原始(shi)(shi)(shi)的(de)(de)(de)(de)觀察(cha)記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu),應該在(zai)觀察(cha)時實(shi)時記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu),有(you)(you)些(xie)檢(jian)(jian)驗員出于(yu)自(zi)己保(bao)留數據的(de)(de)(de)(de)原因(yin),也有(you)(you)些(xie)檢(jian)(jian)驗員出于(yu)保(bao)持原始(shi)(shi)(shi)記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)干凈(jing)整潔的(de)(de)(de)(de)原因(yin),養成(cheng)了將原始(shi)(shi)(shi)記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)先記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)在(zai)筆記(ji)(ji)(ji)(ji)(ji)(ji)本(ben)(ben)上(shang)(shang),過后再轉抄到格(ge)式化的(de)(de)(de)(de)原始(shi)(shi)(shi)記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)上(shang)(shang)。因(yin)此,實(shi)驗室(shi)有(you)(you)必要要求(qiu)檢(jian)(jian)驗人員將記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)及時記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)在(zai)受控的(de)(de)(de)(de)格(ge)式化的(de)(de)(de)(de)原始(shi)(shi)(shi)記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)表式中(zhong),不得先記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)在(zai)筆記(ji)(ji)(ji)(ji)(ji)(ji)本(ben)(ben)上(shang)(shang)然后轉抄到格(ge)式化的(de)(de)(de)(de)原始(shi)(shi)(shi)記(ji)(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)上(shang)(shang)。


05檢(jian)驗報告的錯誤

檢(jian)驗報告是檢(jian)驗機構交給客戶的最終產品,因(yin)此檢(jian)驗報告質(zhi)量也應該是實驗室重點關注的內容之一。檢(jian)驗報告的錯(cuo)誤(wu)通(tong)常有(you)以下兩(liang)種表(biao)現:

1.報(bao)告(gao)編(bian)制(zhi)錯(cuo)(cuo)(cuo)誤檢(jian)(jian)(jian)驗(yan)報(bao)告(gao)編(bian)制(zhi)人員在編(bian)制(zhi)檢(jian)(jian)(jian)驗(yan)報(bao)告(gao)過程中,經常會因為疏忽出現輸(shu)(shu)(shu)入性(xing)錯(cuo)(cuo)(cuo)誤,如:技術(shu)要(yao)求、實(shi)測數據、單項判定等(deng)文字或數字輸(shu)(shu)(shu)入錯(cuo)(cuo)(cuo)誤,造成誤判;委托檢(jian)(jian)(jian)驗(yan)日(ri)(ri)期(qi)、樣(yang)品生產日(ri)(ri)期(qi)、檢(jian)(jian)(jian)驗(yan)日(ri)(ri)期(qi)等(deng)日(ri)(ri)期(qi)輸(shu)(shu)(shu)入錯(cuo)(cuo)(cuo)誤,造成時(shi)(shi)間(jian)(jian)邏輯上的(de)問(wen)題(ti)。當前(qian),絕大(da)多數實(shi)驗(yan)室都采用業務(wu)管(guan)理網絡系(xi)統(tong)編(bian)制(zhi)檢(jian)(jian)(jian)驗(yan)報(bao)告(gao),對于時(shi)(shi)間(jian)(jian)邏輯上的(de)問(wen)題(ti),可以通(tong)過在系(xi)統(tong)上進行時(shi)(shi)間(jian)(jian)關聯提醒(xing)設置,對不符(fu)合邏輯的(de)時(shi)(shi)間(jian)(jian)進行提醒(xing),可有效防止時(shi)(shi)間(jian)(jian)邏輯錯(cuo)(cuo)(cuo)誤;對其(qi)他輸(shu)(shu)(shu)入性(xing)錯(cuo)(cuo)(cuo)誤,則要(yao)通(tong)過加(jia)強報(bao)告(gao)編(bian)制(zhi)人員和審核、批準人員的(de)責(ze)任心來(lai)解決。

2.非(fei)授(shou)權(quan)人(ren)簽(qian)(qian)(qian)字(zi)(zi)(zi)按照實驗(yan)室資質認定(ding)的(de)要求,檢(jian)(jian)驗(yan)報(bao)(bao)(bao)告(gao)(gao)的(de)簽(qian)(qian)(qian)發應由授(shou)權(quan)簽(qian)(qian)(qian)字(zi)(zi)(zi)人(ren)簽(qian)(qian)(qian)發。授(shou)權(quan)簽(qian)(qian)(qian)字(zi)(zi)(zi)人(ren)應對檢(jian)(jian)測技術、結(jie)果評定(ding)、設備(bei)維護校準(zhun)、記錄(lu)和(he)報(bao)(bao)(bao)告(gao)(gao)核查程序等非(fei)常熟悉,因此(ci),授(shou)權(quan)簽(qian)(qian)(qian)字(zi)(zi)(zi)人(ren)的(de)授(shou)權(quan)簽(qian)(qian)(qian)字(zi)(zi)(zi)的(de)能力(li)范(fan)(fan)圍(wei)、試(shi)驗(yan)地址范(fan)(fan)圍(wei)是有限制的(de)。在(zai)實驗(yan)室運作過程中,部分非(fei)授(shou)權(quan)簽(qian)(qian)(qian)字(zi)(zi)(zi)人(ren)簽(qian)(qian)(qian)發檢(jian)(jian)驗(yan)報(bao)(bao)(bao)告(gao)(gao),或授(shou)權(quan)簽(qian)(qian)(qian)字(zi)(zi)(zi)人(ren)不了(le)解(jie)自(zi)己的(de)授(shou)權(quan)簽(qian)(qian)(qian)字(zi)(zi)(zi)能力(li)范(fan)(fan)圍(wei)或試(shi)驗(yan)地址范(fan)(fan)圍(wei),超(chao)越授(shou)權(quan)范(fan)(fan)圍(wei)簽(qian)(qian)(qian)發檢(jian)(jian)驗(yan)報(bao)(bao)(bao)告(gao)(gao),造成(cheng)檢(jian)(jian)驗(yan)報(bao)(bao)(bao)告(gao)(gao)的(de)錯(cuo)誤。這種超(chao)越能力(li)范(fan)(fan)圍(wei)批(pi)準(zhun)檢(jian)(jian)驗(yan)報(bao)(bao)(bao)告(gao)(gao),違反(fan)了(le)實驗(yan)室標識(shi)使用的(de)規(gui)定(ding),會使檢(jian)(jian)驗(yan)報(bao)(bao)(bao)告(gao)(gao)失去(qu)法律效力(li)。


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