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行業動態 行業動態

檢測機構在檢測過程中存在哪些風險?

2021-11-15 作者: 瀏覽(lan)數(shu):1086

  檢(jian)(jian)測(ce)機(ji)構作(zuo)為質(zhi)檢(jian)(jian)戰線的(de)(de)排頭兵(bing),其(qi)檢(jian)(jian)驗(yan)結(jie)果(guo)是人們(men)衡(heng)量產品質(zhi)量的(de)(de)重要標準(zhun),隨(sui)著(zhu)社會(hui)經濟(ji)的(de)(de)發(fa)展,檢(jian)(jian)驗(yan)結(jie)果(guo)科學(xue)性(xing)、公(gong)正性(xing)、準(zhun)確性(xing)的(de)(de)社會(hui)影響力(li)越來越大,有些檢(jian)(jian)驗(yan)機(ji)構的(de)(de)檢(jian)(jian)驗(yan)結(jie)果(guo)已被(bei)國(guo)際經濟(ji)組(zu)織認可,在我國(guo)對(dui)外經濟(ji)貿易中發(fa)揮(hui)了重要作(zuo)用,因此,加強(qiang)對(dui)檢(jian)(jian)測(ce)機(ji)構自身的(de)(de)風險防范工作(zuo)就(jiu)顯(xian)得尤為重要。那檢(jian)(jian)測(ce)機(ji)構在檢(jian)(jian)測(ce)過程中存在的(de)(de)風險到底有哪些風險呢?

  一、超能(neng)力范圍檢驗

  按(an)照《計(ji)量(liang)(liang)法(fa)(fa)》規定(ding)(ding),對社會出(chu)具(ju)具(ju)有(you)證明作用的(de)(de)數據實(shi)(shi)驗(yan)室(shi)(shi)必須經過實(shi)(shi)驗(yan)室(shi)(shi)資質(zhi)(zhi)認定(ding)(ding)(計(ji)量(liang)(liang)認證)和(或(huo))CNAS認可,而資質(zhi)(zhi)認定(ding)(ding)和(或(huo))CNAS認可是限(xian)定(ding)(ding)實(shi)(shi)驗(yan)室(shi)(shi)能(neng)力范(fan)(fan)圍(wei)(wei)(wei)的(de)(de),實(shi)(shi)驗(yan)室(shi)(shi)只能(neng)在(zai)能(neng)力范(fan)(fan)圍(wei)(wei)(wei)限(xian)定(ding)(ding)的(de)(de)產品(pin)(參數)范(fan)(fan)圍(wei)(wei)(wei)內出(chu)具(ju)帶相應標識的(de)(de)檢(jian)(jian)驗(yan)報告,檢(jian)(jian)驗(yan)使用的(de)(de)標準不(bu)在(zai)能(neng)力范(fan)(fan)圍(wei)(wei)(wei)者,我們(men)稱之為(wei)超(chao)范(fan)(fan)圍(wei)(wei)(wei)檢(jian)(jian)驗(yan)。國家質(zhi)(zhi)檢(jian)(jian)總局發布執行的(de)(de)《產品(pin)質(zhi)(zhi)量(liang)(liang)監督(du)抽查管(guan)理辦法(fa)(fa)》、《產品(pin)質(zhi)(zhi)量(liang)(liang)檢(jian)(jian)驗(yan)機構(gou)工(gong)(gong)(gong)作質(zhi)(zhi)量(liang)(liang)分類監管(guan)辦法(fa)(fa)》以(yi)及其(qi)他(ta)規定(ding)(ding)中也都(dou)明確規定(ding)(ding)實(shi)(shi)驗(yan)室(shi)(shi)不(bu)得超(chao)能(neng)力范(fan)(fan)圍(wei)(wei)(wei)開展檢(jian)(jian)測工(gong)(gong)(gong)作,但(dan)在(zai)實(shi)(shi)際工(gong)(gong)(gong)作過程中,個(ge)別檢(jian)(jian)驗(yan)機構(gou)超(chao)能(neng)力范(fan)(fan)圍(wei)(wei)(wei)檢(jian)(jian)測情況時有(you)發生。超(chao)范(fan)(fan)圍(wei)(wei)(wei)檢(jian)(jian)驗(yan)主要有(you)三種形式:

  1、故意(yi)超能(neng)力范圍檢(jian)驗(yan)

  實(shi)(shi)驗(yan)室或(huo)實(shi)(shi)驗(yan)室中個(ge)別人員為(wei)滿足客(ke)戶(hu)要求,為(wei)實(shi)(shi)驗(yan)室爭(zheng)取經(jing)濟(ji)利益(yi),對不(bu)在(zai)(zai)能(neng)(neng)力范(fan)(fan)圍(wei)內(nei)的(de)(de)產(chan)品(pin)開展檢(jian)驗(yan)工(gong)作,出具帶標識的(de)(de)檢(jian)驗(yan)報告;或(huo)實(shi)(shi)驗(yan)室人員以為(wei)采用標準中的(de)(de)個(ge)別標準在(zai)(zai)能(neng)(neng)力范(fan)(fan)圍(wei)內(nei),誤將產(chan)品(pin)進行檢(jian)驗(yan)并出具帶標識的(de)(de)檢(jian)驗(yan)報告。 近年來,質檢(jian)總局、認(ren)監委、省(sheng)市(shi)質監局對超(chao)能(neng)(neng)力范(fan)(fan)圍(wei)檢(jian)測的(de)(de)處罰都(dou)非常嚴厲(li),甚(shen)至停止(zhi)個(ge)別實(shi)(shi)驗(yan)室的(de)(de)檢(jian)測活動。因此(ci),實(shi)(shi)驗(yan)室應將超(chao)能(neng)(neng)力范(fan)(fan)圍(wei)檢(jian)測的(de)(de)后果向每一位(wei)員工(gong)宣傳,不(bu)能(neng)(neng)為(wei)經(jing)濟(ji)利益(yi)或(huo)所謂(wei)的(de)(de)為(wei)企業著想而(er)故意超(chao)能(neng)(neng)力范(fan)(fan)圍(wei)檢(jian)測;同時實(shi)(shi)驗(yan)室還應認(ren)真(zhen)梳(shu)理實(shi)(shi)驗(yan)室的(de)(de)能(neng)(neng)力范(fan)(fan)圍(wei),對確實(shi)(shi)有(you)設備、具備檢(jian)驗(yan)能(neng)(neng)力而(er)不(bu)在(zai)(zai)能(neng)(neng)力范(fan)(fan)圍(wei)內(nei)的(de)(de)標準,應盡快進行擴項,提高為(wei)企業服務的(de)(de)能(neng)(neng)力。

  2、標準(zhun)變(bian)更后未及(ji)時進行能力確認(ren)

  近年(nian)來,不管是(shi)產品標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)還(huan)是(shi)方(fang)法標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun),標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)的(de)(de)(de)變(bian)更非常頻繁。按照實(shi)驗(yan)(yan)(yan)(yan)室(shi)資質認(ren)(ren)定(ding)評(ping)審準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)則(ze)的(de)(de)(de)規定(ding),實(shi)驗(yan)(yan)(yan)(yan)室(shi)使用(yong)的(de)(de)(de)文件(jian)必(bi)須(xu)(xu)是(shi)現行有(you)效的(de)(de)(de),因(yin)此,實(shi)驗(yan)(yan)(yan)(yan)室(shi)不能(neng)使用(yong)作(zuo)廢標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)開(kai)(kai)展(zhan)檢測工作(zuo)。實(shi)驗(yan)(yan)(yan)(yan)室(shi)采(cai)用(yong)新標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)開(kai)(kai)展(zhan)工作(zuo),則(ze)必(bi)須(xu)(xu)及時(shi)到實(shi)驗(yan)(yan)(yan)(yan)室(shi)資質認(ren)(ren)定(ding)和/或CNAS認(ren)(ren)可的(de)(de)(de)發證機構進行標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)變(bian)更。目前,有(you)的(de)(de)(de)實(shi)驗(yan)(yan)(yan)(yan)室(shi)怕麻煩,往往等到復評(ping)審或監(jian)督(du)評(ping)審時(shi)才(cai)進行標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)變(bian)更。在新標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)開(kai)(kai)始實(shi)施(shi)到通過(guo)實(shi)驗(yan)(yan)(yan)(yan)室(shi)復評(ping)審或監(jian)督(du)評(ping)審之間如果按新標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)(zhun)開(kai)(kai)展(zhan)檢驗(yan)(yan)(yan)(yan)工作(zuo),則(ze)是(shi)超范圍(wei)檢驗(yan)(yan)(yan)(yan)。

  還(huan)有一種(zhong)隱(yin)性(xing)(xing)超(chao)(chao)能力范(fan)圍的情(qing)形。實驗(yan)室(shi)通(tong)(tong)過的檢(jian)驗(yan)能力范(fan)圍時,實際隱(yin)含(han)的意(yi)思是包括產品標(biao)(biao)準(zhun)中引(yin)用(yong)標(biao)(biao)準(zhun)也通(tong)(tong)過實驗(yan)室(shi)評審。當其(qi)(qi)引(yin)用(yong)標(biao)(biao)準(zhun)出現標(biao)(biao)準(zhun)變(bian)更尤其(qi)(qi)是檢(jian)驗(yan)方法、環境(jing)設施有實際變(bian)化的情(qing)況下,其(qi)(qi)產品檢(jian)驗(yan)的實際檢(jian)驗(yan)能力有可(ke)(ke)能出現變(bian)化。這(zhe)種(zhong)變(bian)化,可(ke)(ke)能會導致實驗(yan)室(shi)不能按現行(xing)有效標(biao)(biao)準(zhun)正常開(kai)展檢(jian)驗(yan)工作。我們把這(zhe)種(zhong)變(bian)化稱之為“隱(yin)性(xing)(xing)的”超(chao)(chao)范(fan)圍檢(jian)驗(yan)。

  由于標(biao)準變更后需要重新進行能(neng)力確(que)(que)認,個別實(shi)驗(yan)(yan)室怕麻煩,往往會等到監督(du)評審或復(fu)評審時才(cai)進行確(que)(que)認,從而導致(zhi)超(chao)能(neng)力范圍(wei)檢驗(yan)(yan)。因此,實(shi)驗(yan)(yan)室應(ying)關注(zhu)和避免這種情(qing)況的發生,在(zai)能(neng)力未(wei)確(que)(que)認前,不得使(shi)用新標(biao)準開展檢驗(yan)(yan)。對于產品(pin)標(biao)準中引(yin)用標(biao)準的變更,實(shi)驗(yan)(yan)室更應(ying)關注(zhu),以免采用作廢(fei)標(biao)準開展檢驗(yan)(yan)而造(zao)成檢驗(yan)(yan)結(jie)果(guo)的誤判和可能(neng)帶來(lai)的檢驗(yan)(yan)風險。

  3、亂(luan)用CNAS、CMA、CAL標(biao)識

  很多實驗(yan)室(shi)通過了(le)CNAS認(ren)可(ke)(ke),也通過了(le)實驗(yan)室(shi)資質認(ren)定,而(er)這兩個認(ren)可(ke)(ke)不在(zai)同一時(shi)間進行認(ren)可(ke)(ke),當(dang)申請(qing)擴(kuo)項或標(biao)準變更時(shi),往往是一個通過了(le),而(er)另一個還(huan)要過段時(shi)間才認(ren)可(ke)(ke)。有部(bu)分(fen)實驗(yan)室(shi)尤其是部(bu)分(fen)中(zhong)小(xiao)實驗(yan)室(shi),取得能(neng)(neng)(neng)力范(fan)圍(wei)以(yi)CMA和CAL為主,CNAS的能(neng)(neng)(neng)力范(fan)圍(wei)很小(xiao),而(er)檢(jian)驗(yan)報告的封(feng)面(mian)一般是將幾(ji)個檢(jian)測標(biao)識均直(zhi)接印在(zai)封(feng)面(mian)上,這使(shi)得實驗(yan)室(shi)誤用(yong)標(biao)識。因(yin)此,實驗(yan)室(shi)應(ying)按通過的能(neng)(neng)(neng)力范(fan)圍(wei)分(fen)別印制檢(jian)驗(yan)封(feng)面(mian),按規定使(shi)用(yong)。

  二、設(she)備及環境設(she)施不能滿足標準要求(qiu)

  設(she)備及環(huan)境(jing)設(she)施是(shi)實(shi)驗室(shi)開展檢驗的必(bi)備工具,設(she)備及環(huan)境(jing)設(she)施是(shi)否滿(man)足標準(zhun),將直接(jie)影響數據的準(zhun)確性,對檢驗結(jie)果(guo)和判定(ding)有(you)重大影響。設(she)備及環(huan)境(jing)設(she)施不能(neng)滿(man)足要求的原(yuan)因(yin)主要有(you):

  1、量(liang)值溯源未按規定

  儀(yi)器(qi)(qi)(qi)設(she)(she)備的(de)量(liang)(liang)值溯(su)源是(shi)保證其(qi)測(ce)量(liang)(liang)準(zhun)確(que)性的(de)主要手段之(zhi)一,按照實(shi)(shi)驗(yan)室(shi)資質認(ren)定(ding)(ding)(ding)評審準(zhun)則(ze)要求,儀(yi)器(qi)(qi)(qi)設(she)(she)備使用(yong)前應經過(guo)檢定(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun),必要時,在二次檢定(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun)之(zhi)間(jian)應進(jin)(jin)行期間(jian)核(he)查,以(yi)保證數據(ju)的(de)準(zhun)確(que)性。但(dan)部(bu)分實(shi)(shi)驗(yan)室(shi)未按規(gui)定(ding)(ding)(ding)將儀(yi)器(qi)(qi)(qi)送計量(liang)(liang)部(bu)門進(jin)(jin)行檢定(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun),造成儀(yi)器(qi)(qi)(qi)失準(zhun),還有(you)個別檢定(ding)(ding)(ding)/校(xiao)(xiao)準(zhun)實(shi)(shi)驗(yan)室(shi)不經檢定(ding)(ding)(ding)/校(xiao)(xiao)準(zhun)就(jiu)出具證書。實(shi)(shi)驗(yan)室(shi)內經常會有(you)儀(yi)器(qi)(qi)(qi)設(she)(she)備是(shi)沒有(you)檢定(ding)(ding)(ding)規(gui)程或(huo)(huo)校(xiao)(xiao)準(zhun)方(fang)(fang)法,計量(liang)(liang)部(bu)門往往圖省事,僅(jin)對(dui)(dui)儀(yi)器(qi)(qi)(qi)使用(yong)的(de)計量(liang)(liang)器(qi)(qi)(qi)具進(jin)(jin)行檢定(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun),而(er)其(qi)總體設(she)(she)備是(shi)否(fou)合格則(ze)不做(zuo)綜合判(pan)定(ding)(ding)(ding),使得設(she)(she)備顯示的(de)數據(ju)是(shi)否(fou)準(zhun)確(que)不得而(er)知。如果此時不采用(yong)能力驗(yan)證或(huo)(huo)實(shi)(shi)驗(yan)室(shi)比對(dui)(dui)的(de)方(fang)(fang)法對(dui)(dui)儀(yi)器(qi)(qi)(qi)進(jin)(jin)行驗(yan)證,則(ze)會帶來很大的(de)風(feng)險。

  2、設備(bei)精度下(xia)降

  有的(de)檢驗機構(gou),尤(you)其是中小(xiao)型檢驗機構(gou),由于資(zi)金的(de)不足,使(shi)得設(she)備(bei)長(chang)期(qi)服役(yi),得不到及時(shi)(shi)(shi)更新。由于設(she)備(bei)使(shi)用年(nian)限過長(chang),或使(shi)用環境惡劣,設(she)備(bei)的(de)精度(du)下(xia)(xia)降,檢驗數據(ju)的(de)可(ke)(ke)信(xin)度(du)下(xia)(xia)降。因此,實(shi)驗室應及時(shi)(shi)(shi)更新設(she)備(bei),當設(she)備(bei)一(yi)時(shi)(shi)(shi)不能更新,應增加校準的(de)頻次、做期(qi)間(jian)(jian)核查、采用實(shi)驗室間(jian)(jian)比對(dui)或設(she)備(bei)間(jian)(jian)比對(dui)等方(fang)式(shi)驗證設(she)備(bei)的(de)可(ke)(ke)靠性,以保證檢測數據(ju)準確(que)可(ke)(ke)靠。

  3、環境(jing)設施(shi)不符合標準要求

  很多試(shi)驗(yan)對(dui)(dui)環(huan)境(jing)設(she)(she)施(shi)的(de)要求(qiu)是很高(gao)的(de),對(dui)(dui)檢(jian)驗(yan)結(jie)果(guo)的(de)影(ying)響(xiang)很大,但部分(fen)檢(jian)驗(yan)機構(gou)對(dui)(dui)環(huan)境(jing)設(she)(she)施(shi)不是很重視,不能很好地滿足檢(jian)驗(yan)的(de)要求(qiu)。如:水(shui)(shui)泥(ni)檢(jian)驗(yan)的(de)水(shui)(shui)養(yang)護,水(shui)(shui)的(de)溫(wen)度(du)規定為(20±1)℃,超出標(biao)準(zhun)規定的(de)溫(wen)度(du)范圍(wei),尤其是超出溫(wen)度(du)較多時,對(dui)(dui)檢(jian)驗(yan)結(jie)果(guo)影(ying)響(xiang)就會很大。而我(wo)們在評審中發(fa)現,部分(fen)水(shui)(shui)泥(ni)實驗(yan)室中,水(shui)(shui)養(yang)護都(dou)是在水(shui)(shui)池中進(jin)行(xing),水(shui)(shui)溫(wen)低了加熱水(shui)(shui),水(shui)(shui)溫(wen)高(gao)了加冷水(shui)(shui),這樣的(de)溫(wen)控方(fang)式(shi)無法保(bao)證水(shui)(shui)溫(wen)控制精度(du),其養(yang)護后的(de)檢(jian)測數據也是不準(zhun)確的(de)。因此,對(dui)(dui)環(huan)境(jing)設(she)(she)施(shi)要求(qiu)高(gao)的(de)試(shi)驗(yan),實驗(yan)室應確保(bao)檢(jian)測的(de)環(huan)境(jing)設(she)(she)施(shi)符合(he)標(biao)準(zhun)要求(qiu)。

  三、檢測過程質量缺乏有效(xiao)控制

  由于(yu)檢(jian)測過程(cheng)不規范而產生的檢(jian)驗結(jie)論(lun)不正(zheng)確或數據不準確也時有發生,主要表現在:

  1、檢驗和計算粗心大(da)意

  檢(jian)(jian)(jian)(jian)驗(yan)(yan)是一(yi)(yi)個需(xu)要專注(zhu)的過(guo)(guo)(guo)程,稍有疏(shu)忽,就容(rong)易(yi)出(chu)現(xian)(xian)(xian)差(cha)錯(cuo)。而隨著手機的普及,檢(jian)(jian)(jian)(jian)驗(yan)(yan)過(guo)(guo)(guo)程中,檢(jian)(jian)(jian)(jian)驗(yan)(yan)人員在(zai)檢(jian)(jian)(jian)(jian)驗(yan)(yan)或(huo)檢(jian)(jian)(jian)(jian)驗(yan)(yan)后(hou)的數據計(ji)算過(guo)(guo)(guo)程中接聽手機的現(xian)(xian)(xian)象(xiang)非常普遍,如此以及其(qi)他的粗(cu)心造成(cheng)檢(jian)(jian)(jian)(jian)驗(yan)(yan)失誤的案(an)例也時有發生。檢(jian)(jian)(jian)(jian)驗(yan)(yan)和計(ji)算過(guo)(guo)(guo)程中粗(cu)心大(da)意造成(cheng)的檢(jian)(jian)(jian)(jian)驗(yan)(yan)失誤雖不常見,但一(yi)(yi)旦出(chu)現(xian)(xian)(xian)這種情(qing)況,將直接導致(zhi)檢(jian)(jian)(jian)(jian)驗(yan)(yan)結果出(chu)現(xian)(xian)(xian)差(cha)錯(cuo)。

  2、對可疑數(shu)據不(bu)敏感

  一般而言(yan),每一種物質都有(you)(you)其(qi)自身特性,其(qi)檢(jian)(jian)(jian)測(ce)(ce)數據(ju)(ju)應(ying)在一定范圍,如(ru),苯板的(de)導熱系(xi)數不(bu)(bu)可(ke)能(neng)為(wei)0,采用(yong)不(bu)(bu)同鋁合金建筑(zhu)型材(cai)和(he)普通單層玻璃的(de)建筑(zhu)外窗不(bu)(bu)可(ke)能(neng)達到保溫窗的(de)要(yao)求等等。當檢(jian)(jian)(jian)驗(yan)(yan)人(ren)員(yuan)或檢(jian)(jian)(jian)驗(yan)(yan)報告(gao)的(de)批(pi)準人(ren)員(yuan)發現(xian)不(bu)(bu)符合一般規律(lv)的(de)可(ke)疑(yi)(yi)數據(ju)(ju)時(shi),應(ying)對(dui)可(ke)疑(yi)(yi)數據(ju)(ju)進行復(fu)核(he),并查(cha)清是否儀器(qi)設備有(you)(you)問題或檢(jian)(jian)(jian)驗(yan)(yan)人(ren)員(yuan)操作失誤。能(neng)夠正確判斷數據(ju)(ju)是否可(ke)疑(yi)(yi),是建立在對(dui)被(bei)檢(jian)(jian)(jian)測(ce)(ce)產品的(de)理論和(he)檢(jian)(jian)(jian)測(ce)(ce)實(shi)踐有(you)(you)大量(liang)積累的(de)基礎上,這也是一個成(cheng)熟(shu)的(de)檢(jian)(jian)(jian)驗(yan)(yan)人(ren)員(yuan),檢(jian)(jian)(jian)驗(yan)(yan)報告(gao)審核(he)、批(pi)準人(ren)員(yuan)應(ying)有(you)(you)的(de)基本素(su)質,沒(mei)有(you)(you)長期(qi)訓練(lian),是不(bu)(bu)可(ke)能(neng)敏感地察(cha)覺檢(jian)(jian)(jian)驗(yan)(yan)數據(ju)(ju)可(ke)疑(yi)(yi)的(de)。

  3、臨(lin)界值(zhi)的處理有偏差

  在(zai)檢(jian)驗過程中,由(you)于測(ce)量不確(que)定度(du)的(de)存(cun)在(zai),可(ke)能會導致(zhi)檢(jian)驗項(xiang)目在(zai)臨(lin)界值的(de)判斷時有偏(pian)差。例如(ru):涂層厚(hou)度(du),對(dui)于普通裝飾用(yong)鋁塑(su)板,由(you)于涂層厚(hou)度(du)相對(dui)較(jiao)小,測(ce)量時“0”點的(de)精確(que)校準(zhun)對(dui)于處(chu)在(zai)標準(zhun)規定的(de)臨(lin)界狀(zhuang)態的(de)產品(pin)(pin)而(er)言(yan)顯得尤為重要。如(ru)果(guo)用(yong)普通標準(zhun)基板進(jin)行(xing)調(diao)0,則可(ke)能出現(1~2)um的(de)偏(pian)差,這(zhe)將可(ke)能導致(zhi)產品(pin)(pin)由(you)“合格”滑向(xiang)“不合格”邊緣(yuan)。對(dui)于普通裝飾用(yong)鋁塑(su)板,可(ke)以將產品(pin)(pin)除去涂層,在(zai)其(qi)裸(luo)露的(de)基材上進(jin)行(xing)調(diao)0,以保證(zheng)結果(guo)的(de)準(zhun)確(que)客觀(guan)性。因(yin)此,對(dui)于有臨(lin)界值的(de)檢(jian)驗結果(guo),應(ying)組(zu)織由(you)不同檢(jian)驗人員或者儀器設備進(jin)行(xing)多次的(de)比對(dui)試驗,確(que)保檢(jian)驗結果(guo)科學公(gong)正。

  4、對標(biao)準理(li)解有(you)偏(pian)差

  檢(jian)(jian)驗(yan)(yan)是一項(xiang)很(hen)嚴(yan)謹(jin)的(de)工作(zuo),個(ge)別檢(jian)(jian)驗(yan)(yan)人(ren)員對于(yu)標準的(de)理解和(he)使用(yong)不(bu)正確也直接影響了(le)(le)檢(jian)(jian)驗(yan)(yan)結(jie)果的(de)準確性(xing)。例如:氟碳(tan)涂(tu)層(ceng)(ceng)(ceng)普通裝飾(shi)板檢(jian)(jian)測,GB/T 22412-2008規定(ding),對于(yu)氟碳(tan)涂(tu)層(ceng)(ceng)(ceng)普通裝飾(shi)用(yong)鋁塑板,其涂(tu)層(ceng)(ceng)(ceng)性(xing)能的(de)檢(jian)(jian)測應按(an)照GB/T 17748-2008進行。試驗(yan)(yan)中往往容易(yi)將“普通裝飾(shi)用(yong)”的(de)概念先(xian)入為(wei)主,而忽略了(le)(le)“其為(wei)氟碳(tan)涂(tu)層(ceng)(ceng)(ceng)”的(de)事(shi)實,導致采(cai)用(yong)檢(jian)(jian)驗(yan)(yan)標準不(bu)正確,最終導致檢(jian)(jian)驗(yan)(yan)結(jie)果失效。

  5、新上崗檢驗(yan)員缺乏有(you)效監督

  近(jin)年來,許多檢(jian)(jian)驗(yan)(yan)(yan)機構開展(zhan)了新(xin)一輪的(de)(de)擴張,使(shi)得有經(jing)驗(yan)(yan)(yan)的(de)(de)檢(jian)(jian)驗(yan)(yan)(yan)人(ren)(ren)員(yuan)(yuan)嚴(yan)重缺乏(fa),個別實(shi)(shi)驗(yan)(yan)(yan)室(shi)(shi)新(xin)進(jin)人(ren)(ren)員(yuan)(yuan)僅僅通過幾個月的(de)(de)培訓就(jiu)上(shang)(shang)崗(gang)(gang)開展(zhan)檢(jian)(jian)驗(yan)(yan)(yan)工作(zuo),這類(lei)檢(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan)對檢(jian)(jian)驗(yan)(yan)(yan)不太熟(shu)練,對異常數據缺乏(fa)敏感,而(er)又(you)(you)對這類(lei)人(ren)(ren)員(yuan)(yuan)缺乏(fa)有效的(de)(de)監(jian)督(du),使(shi)得他們出現錯(cuo)誤的(de)(de)可能(neng)性遠(yuan)遠(yuan)超過成熟(shu)員(yuan)(yuan)工。因(yin)此,使(shi)用經(jing)驗(yan)(yan)(yan)不足而(er)又(you)(you)缺少監(jian)督(du)的(de)(de)新(xin)上(shang)(shang)崗(gang)(gang)檢(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan),潛在風險較大。因(yin)此,要按照實(shi)(shi)驗(yan)(yan)(yan)室(shi)(shi)資質認定評審準則的(de)(de)要求,對使(shi)用在培人(ren)(ren)員(yuan)(yuan)應有足夠的(de)(de)監(jian)督(du)。實(shi)(shi)驗(yan)(yan)(yan)室(shi)(shi)在使(shi)用新(xin)上(shang)(shang)崗(gang)(gang)人(ren)(ren)員(yuan)(yuan)或轉崗(gang)(gang)人(ren)(ren)員(yuan)(yuan)時(shi),除應考核(he)上(shang)(shang)崗(gang)(gang)外,檢(jian)(jian)驗(yan)(yan)(yan)時(shi)實(shi)(shi)驗(yan)(yan)(yan)室(shi)(shi)監(jian)督(du)員(yuan)(yuan)應加強監(jian)督(du),防止出現檢(jian)(jian)驗(yan)(yan)(yan)失誤。

  四、檢驗原始記錄不規范缺少可追(zhui)溯(su)性

  檢(jian)驗(yan)(yan)原始(shi)記(ji)錄(lu)不(bu)規(gui)范(fan),雖然不(bu)會(hui)改變檢(jian)驗(yan)(yan)結果,但原始(shi)記(ji)錄(lu)是實(shi)(shi)驗(yan)(yan)室(shi)檢(jian)驗(yan)(yan)過程的證明材料(liao),一旦實(shi)(shi)驗(yan)(yan)室(shi)與(yu)檢(jian)驗(yan)(yan)委托方或相關(guan)第三方發生糾紛時(shi),檢(jian)驗(yan)(yan)原始(shi)記(ji)錄(lu)就(jiu)不(bu)能起到證據的作用,將實(shi)(shi)驗(yan)(yan)室(shi)置于危險境地(di)。每個實(shi)(shi)驗(yan)(yan)室(shi)都會(hui)按實(shi)(shi)驗(yan)(yan)室(shi)資質認定評(ping)審準則的規(gui)定,制訂自己的記(ji)錄(lu)管理規(gui)定,但個別實(shi)(shi)驗(yan)(yan)室(shi)不(bu)能很好地(di)執行,表(biao)現在:

  1、檢驗(yan)樣品的準備、處置和制(zhi)備記(ji)錄不全?

  檢驗(yan)原始(shi)(shi)記(ji)錄(lu)最基本的(de)(de)要(yao)求是將觀察到(dao)(dao)(dao)的(de)(de)情況、數據(ju)加以記(ji)錄(lu),這里指的(de)(de)觀察到(dao)(dao)(dao)的(de)(de)情況包括從樣(yang)(yang)品(pin)(pin)的(de)(de)準備(bei)(bei)(bei)、處(chu)置和制備(bei)(bei)(bei)開始(shi)(shi)到(dao)(dao)(dao)檢驗(yan)結束(shu)所觀察到(dao)(dao)(dao)的(de)(de)全過(guo)(guo)程(cheng)(cheng)。實驗(yan)室(shi)往(wang)往(wang)對檢驗(yan)過(guo)(guo)程(cheng)(cheng)觀察到(dao)(dao)(dao)的(de)(de)情況記(ji)錄(lu)比較詳細,但對樣(yang)(yang)品(pin)(pin)的(de)(de)準備(bei)(bei)(bei)、處(chu)置和制備(bei)(bei)(bei)過(guo)(guo)程(cheng)(cheng),如樣(yang)(yang)品(pin)(pin)在(zai)恒溫(wen)恒濕間的(de)(de)等(deng)溫(wen)過(guo)(guo)程(cheng)(cheng)、水(shui)泥的(de)(de)水(shui)養護過(guo)(guo)程(cheng)(cheng)等(deng)過(guo)(guo)程(cheng)(cheng)記(ji)錄(lu)不(bu)全,甚至不(bu)予記(ji)錄(lu)。按照“實驗(yan)室(shi)記(ji)錄(lu)應(ying)及時(shi)、準確、完整”的(de)(de)要(yao)求,檢驗(yan)樣(yang)(yang)品(pin)(pin)的(de)(de)準備(bei)(bei)(bei)、處(chu)置和制備(bei)(bei)(bei),也是檢驗(yan)的(de)(de)過(guo)(guo)程(cheng)(cheng),也應(ying)及時(shi)、準確、完整地(di)加以記(ji)錄(lu),同時(shi),對檢驗(yan)員要(yao)加強教育,要(yao)有完整準確地(di)記(ji)錄(lu)原始(shi)(shi)記(ji)錄(lu)的(de)(de)意識。

  2、引(yin)用數據缺少可追溯性

  檢驗(yan)后的(de)計(ji)算過程中(zhong)(zhong)往(wang)往(wang)需要引(yin)用(yong)(yong)一些常數或系數。所有引(yin)用(yong)(yong)數據都(dou)應(ying)有出(chu)處,常數主要是標(biao)準(zhun)中(zhong)(zhong)給出(chu),系數則是在(zai)(zai)檢驗(yan)前作出(chu)標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)后得出(chu),標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)不(bu)是做出(chu)一次后永遠使(shi)用(yong)(yong),而(er)是應(ying)定(ding)期做標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian),因此(ci),在(zai)(zai)使(shi)用(yong)(yong)標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)時,應(ying)在(zai)(zai)原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)中(zhong)(zhong)附上本次檢測使(shi)用(yong)(yong)的(de)標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)或注(zhu)明標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)編(bian)號。而(er)有的(de)實(shi)驗(yan)室在(zai)(zai)記(ji)錄(lu)(lu)原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)時,并不(bu)將標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)附在(zai)(zai)原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)中(zhong)(zhong)或在(zai)(zai)原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)中(zhong)(zhong)注(zhu)明出(chu)處,使(shi)其引(yin)用(yong)(yong)的(de)數據不(bu)具有可(ke)追溯性(xing)。因此(ci),檢驗(yan)人員在(zai)(zai)記(ji)錄(lu)(lu)檢驗(yan)原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)時,應(ying)將引(yin)用(yong)(yong)的(de)標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)附在(zai)(zai)原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)中(zhong)(zhong),或將引(yin)用(yong)(yong)的(de)標(biao)準(zhun)曲(qu)(qu)(qu)(qu)(qu)線(xian)(xian)(xian)(xian)的(de)編(bian)號在(zai)(zai)原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)中(zhong)(zhong)注(zhu)明,使(shi)得原(yuan)始(shi)(shi)(shi)(shi)記(ji)錄(lu)(lu)中(zhong)(zhong)的(de)引(yin)用(yong)(yong)數據具有可(ke)追溯性(xing)。

  3、從筆(bi)記本上轉抄檢(jian)驗記錄

  檢驗(yan)原(yuan)(yuan)始(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)是(shi)原(yuan)(yuan)始(shi)(shi)的(de)(de)觀察(cha)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu),應該在(zai)觀察(cha)時(shi)(shi)實(shi)時(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu),有(you)(you)些檢驗(yan)員(yuan)出(chu)(chu)于自(zi)己保留數(shu)據(ju)的(de)(de)原(yuan)(yuan)因(yin),也有(you)(you)些檢驗(yan)員(yuan)出(chu)(chu)于保持原(yuan)(yuan)始(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)干凈整(zheng)潔的(de)(de)原(yuan)(yuan)因(yin),養(yang)成了將原(yuan)(yuan)始(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)先記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)在(zai)筆記(ji)(ji)(ji)(ji)(ji)本上(shang),過(guo)后再轉抄到(dao)格式(shi)化的(de)(de)原(yuan)(yuan)始(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)上(shang)。因(yin)此,實(shi)驗(yan)室有(you)(you)必要要求檢驗(yan)人員(yuan)將記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)及時(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)在(zai)受(shou)控的(de)(de)格式(shi)化的(de)(de)原(yuan)(yuan)始(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)表式(shi)中,不得先記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)在(zai)筆記(ji)(ji)(ji)(ji)(ji)本上(shang)然后轉抄到(dao)格式(shi)化的(de)(de)原(yuan)(yuan)始(shi)(shi)記(ji)(ji)(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)上(shang)。

  五、檢驗報告編制過程的失(shi)誤

  檢(jian)驗(yan)報(bao)告(gao)(gao)是檢(jian)驗(yan)機構交給客(ke)戶(hu)的最終產品,因此檢(jian)驗(yan)報(bao)告(gao)(gao)質量(liang)也(ye)應該是實(shi)驗(yan)室重點關注(zhu)的內容(rong)之(zhi)一。檢(jian)驗(yan)報(bao)告(gao)(gao)的錯(cuo)誤(wu)通常有以(yi)下兩種表(biao)現:

  1、報(bao)告編制(zhi)錯誤

  檢驗(yan)(yan)(yan)(yan)報告(gao)編制人(ren)員(yuan)在(zai)編制檢驗(yan)(yan)(yan)(yan)報告(gao)過程(cheng)中(zhong),經(jing)常會(hui)因(yin)為疏(shu)忽出現輸(shu)入(ru)性(xing)錯(cuo)誤(wu),如(ru):技術要求、實測數(shu)據、單(dan)項判(pan)定(ding)等(deng)文(wen)字或(huo)數(shu)字輸(shu)入(ru)錯(cuo)誤(wu),造(zao)成(cheng)誤(wu)判(pan);委托檢驗(yan)(yan)(yan)(yan)日期(qi)、樣品生產日期(qi)、檢驗(yan)(yan)(yan)(yan)日期(qi)等(deng)日期(qi)輸(shu)入(ru)錯(cuo)誤(wu),造(zao)成(cheng)時(shi)間(jian)(jian)邏(luo)輯(ji)上的問題。當前,絕大多數(shu)實驗(yan)(yan)(yan)(yan)室都(dou)采(cai)用業務(wu)管理網絡系統(tong)編制檢驗(yan)(yan)(yan)(yan)報告(gao),對(dui)于(yu)時(shi)間(jian)(jian)邏(luo)輯(ji)上的問題,可(ke)以通過在(zai)系統(tong)上進(jin)行時(shi)間(jian)(jian)關(guan)聯提醒(xing)設置,對(dui)不符(fu)合邏(luo)輯(ji)的時(shi)間(jian)(jian)進(jin)行提醒(xing),可(ke)有效防止(zhi)時(shi)間(jian)(jian)邏(luo)輯(ji)錯(cuo)誤(wu);對(dui)其他(ta)輸(shu)入(ru)性(xing)錯(cuo)誤(wu),則(ze)要通過加強報告(gao)編制人(ren)員(yuan)和審核、批準人(ren)員(yuan)的責任心來解決。

  2、非授(shou)權(quan)人(ren)簽字

  按(an)照實(shi)驗(yan)室資(zi)質認定(ding)(ding)的(de)(de)(de)(de)要求(qiu),檢(jian)(jian)(jian)驗(yan)報(bao)(bao)告(gao)的(de)(de)(de)(de)簽(qian)發應(ying)由授權(quan)(quan)(quan)簽(qian)字人(ren)(ren)簽(qian)發。授權(quan)(quan)(quan)簽(qian)字人(ren)(ren)應(ying)對檢(jian)(jian)(jian)測技(ji)術、結果評定(ding)(ding)、設備維護校(xiao)準(zhun)、記錄和報(bao)(bao)告(gao)核查程(cheng)序等非(fei)常熟悉(xi),因此(ci),授權(quan)(quan)(quan)簽(qian)字人(ren)(ren)的(de)(de)(de)(de)授權(quan)(quan)(quan)簽(qian)字的(de)(de)(de)(de)能(neng)力(li)(li)范(fan)圍(wei)(wei)、試驗(yan)地(di)址范(fan)圍(wei)(wei)是有(you)限制的(de)(de)(de)(de)。在(zai)實(shi)驗(yan)室運作過(guo)(guo)程(cheng)中,部分非(fei)授權(quan)(quan)(quan)簽(qian)字人(ren)(ren)簽(qian)發檢(jian)(jian)(jian)驗(yan)報(bao)(bao)告(gao),或(huo)授權(quan)(quan)(quan)簽(qian)字人(ren)(ren)不(bu)(bu)了解自(zi)己的(de)(de)(de)(de)授權(quan)(quan)(quan)簽(qian)字能(neng)力(li)(li)范(fan)圍(wei)(wei)或(huo)試驗(yan)地(di)址范(fan)圍(wei)(wei),超越(yue)授權(quan)(quan)(quan)范(fan)圍(wei)(wei)簽(qian)發檢(jian)(jian)(jian)驗(yan)報(bao)(bao)告(gao),造成(cheng)檢(jian)(jian)(jian)驗(yan)報(bao)(bao)告(gao)的(de)(de)(de)(de)錯誤。這種超越(yue)能(neng)力(li)(li)范(fan)圍(wei)(wei)批準(zhun)檢(jian)(jian)(jian)驗(yan)報(bao)(bao)告(gao),違反了實(shi)驗(yan)室標識使(shi)用(yong)的(de)(de)(de)(de)規(gui)定(ding)(ding),會使(shi)檢(jian)(jian)(jian)驗(yan)報(bao)(bao)告(gao)失去法律(lv)效力(li)(li)。可(ke)以(yi)說檢(jian)(jian)(jian)驗(yan)過(guo)(guo)程(cheng)的(de)(de)(de)(de)風(feng)(feng)(feng)險(xian)(xian)是無處不(bu)(bu)在(zai)的(de)(de)(de)(de),其風(feng)(feng)(feng)險(xian)(xian)也不(bu)(bu)僅僅局限于(yu)本文綜上所述,然而(er)我們不(bu)(bu)能(neng)因為有(you)風(feng)(feng)(feng)險(xian)(xian)就不(bu)(bu)開展檢(jian)(jian)(jian)驗(yan)活動,而(er)是應(ying)該通過(guo)(guo)對檢(jian)(jian)(jian)驗(yan)過(guo)(guo)程(cheng)風(feng)(feng)(feng)險(xian)(xian)點的(de)(de)(de)(de)分析(xi)研究,找出有(you)效對策(ce),從而(er)最(zui)終降(jiang)低自(zi)身(shen)的(de)(de)(de)(de)風(feng)(feng)(feng)險(xian)(xian)。

  總 結:

  當前,我(wo)國(guo)質量安全形勢(shi)依然(ran)嚴峻,質量安全風險(xian)依然(ran)存在,作(zuo)為檢驗機構必須堅決貫徹國(guo)家質檢總局(ju)有關文(wen)件(jian)精神(shen),全面落實風險(xian)防(fang)(fang)范(fan)工作(zuo),提高每一名員工的(de)檢驗檢測風險(xian)防(fang)(fang)范(fan)意(yi)識(shi),通過對全過程監控(kong)和(he)嚴格責任追究(jiu)制,提高檢驗檢測工作(zuo)質量水平,更(geng)好地為推進“質量強國(guo)”發揮(hui)檢驗機構的(de)技(ji)術(shu)支(zhi)撐(cheng)作(zuo)用。


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