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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)法》規定(ding)(ding),對社會出具具有證明作用的(de)數(shu)據實(shi)驗(yan)(yan)室(shi)必須經過實(shi)驗(yan)(yan)室(shi)資質認(ren)(ren)定(ding)(ding)(計量(liang)(liang)認(ren)(ren)證)和/或(huo)CNAS認(ren)(ren)可(ke)(ke),而資質認(ren)(ren)定(ding)(ding)和/或(huo)CNAS認(ren)(ren)可(ke)(ke)是限(xian)定(ding)(ding)實(shi)驗(yan)(yan)室(shi)能力范(fan)圍的(de),實(shi)驗(yan)(yan)室(shi)只能在(zai)能力范(fan)圍限(xian)定(ding)(ding)的(de)產品(pin)(參(can)數(shu))范(fan)圍內(nei)出具帶相應標(biao)識的(de)檢(jian)驗(yan)(yan)報告,檢(jian)驗(yan)(yan)使(shi)用的(de)標(biao)準不在(zai)能力范(fan)圍者,我們稱之為超(chao)范(fan)圍檢(jian)驗(yan)(yan)。國家質檢(jian)總(zong)局發(fa)布執行(xing)的(de)《產品(pin)質量(liang)(liang)監督抽查管理辦法》、《產品(pin)質量(liang)(liang)檢(jian)驗(yan)(yan)機(ji)構(gou)工作質量(liang)(liang)分類監管辦法》以及(ji)其他規定(ding)(ding)中也都明確規定(ding)(ding)實(shi)驗(yan)(yan)室(shi)不得超(chao)能力范(fan)圍開展檢(jian)測(ce)工作,但(dan)在(zai)實(shi)際工作過程中,個別(bie)檢(jian)驗(yan)(yan)機(ji)構(gou)超(chao)能力范(fan)圍檢(jian)測(ce)情況時有發(fa)生。超(chao)范(fan)圍檢(jian)驗(yan)(yan)主要有三種形式:

1.故意超能力范(fan)圍(wei)檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)實(shi)驗(yan)(yan)(yan)(yan)室(shi)(shi)或實(shi)驗(yan)(yan)(yan)(yan)室(shi)(shi)中(zhong)個(ge)別(bie)人員(yuan)為(wei)滿(man)足客戶要求,為(wei)實(shi)驗(yan)(yan)(yan)(yan)室(shi)(shi)爭取經濟利益,對不在能力范(fan)圍(wei)內的(de)(de)產品開展檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)工作,出(chu)具帶(dai)標(biao)識的(de)(de)檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao);或實(shi)驗(yan)(yan)(yan)(yan)室(shi)(shi)人員(yuan)以為(wei)采(cai)用標(biao)準中(zhong)的(de)(de)個(ge)別(bie)標(biao)準在能力范(fan)圍(wei)內,誤(wu)將產品進(jin)行檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)并(bing)出(chu)具帶(dai)標(biao)識的(de)(de)檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)報(bao)(bao)告(gao)。

近年來,質檢總局(ju)、認監委、省市質監局(ju)對超(chao)(chao)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)(fan)圍檢測的(de)處罰都非常嚴厲,甚至停止個別(bie)實驗室(shi)的(de)檢測活(huo)動(dong)。因此,實驗室(shi)應將(jiang)超(chao)(chao)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)(fan)圍檢測的(de)后果向每一(yi)位員工宣傳,不能(neng)(neng)(neng)為經濟利益或所謂的(de)為企(qi)業(ye)著(zhu)想而故意超(chao)(chao)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)(fan)圍檢測;同時實驗室(shi)還應認真梳理實驗室(shi)的(de)能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)(fan)圍,對確實有設(she)備、具備檢驗能(neng)(neng)(neng)力(li)(li)(li)(li)而不在能(neng)(neng)(neng)力(li)(li)(li)(li)范(fan)(fan)圍內的(de)標準,應盡快進行擴項,提高為企(qi)業(ye)服(fu)務的(de)能(neng)(neng)(neng)力(li)(li)(li)(li)。

2.標(biao)(biao)(biao)準(zhun)(zhun)變更(geng)(geng)后未及時進(jin)行(xing)能力確認(ren)近年來,不管(guan)是產(chan)品標(biao)(biao)(biao)準(zhun)(zhun)還是方法(fa)標(biao)(biao)(biao)準(zhun)(zhun),標(biao)(biao)(biao)準(zhun)(zhun)的(de)(de)變更(geng)(geng)非常頻繁。按(an)照實(shi)(shi)(shi)驗室資(zi)質(zhi)認(ren)定(ding)(ding)評(ping)(ping)(ping)審(shen)準(zhun)(zhun)則(ze)的(de)(de)規定(ding)(ding),實(shi)(shi)(shi)驗室使用(yong)的(de)(de)文件必(bi)須是現行(xing)有效的(de)(de),因此,實(shi)(shi)(shi)驗室不能使用(yong)作(zuo)廢標(biao)(biao)(biao)準(zhun)(zhun)開展檢測(ce)工作(zuo)。實(shi)(shi)(shi)驗室采用(yong)新(xin)標(biao)(biao)(biao)準(zhun)(zhun)開展工作(zuo),則(ze)必(bi)須及時到(dao)實(shi)(shi)(shi)驗室資(zi)質(zhi)認(ren)定(ding)(ding)和/或CNAS認(ren)可的(de)(de)發證機構進(jin)行(xing)標(biao)(biao)(biao)準(zhun)(zhun)變更(geng)(geng)。目前,有的(de)(de)實(shi)(shi)(shi)驗室怕麻煩,往(wang)往(wang)等到(dao)復評(ping)(ping)(ping)審(shen)或監督評(ping)(ping)(ping)審(shen)時才進(jin)行(xing)標(biao)(biao)(biao)準(zhun)(zhun)變更(geng)(geng)。在新(xin)標(biao)(biao)(biao)準(zhun)(zhun)開始實(shi)(shi)(shi)施到(dao)通過實(shi)(shi)(shi)驗室復評(ping)(ping)(ping)審(shen)或監督評(ping)(ping)(ping)審(shen)之(zhi)間如果按(an)新(xin)標(biao)(biao)(biao)準(zhun)(zhun)開展檢驗工作(zuo),則(ze)是超(chao)范圍檢驗。

還(huan)有一種(zhong)隱(yin)性(xing)超(chao)能(neng)(neng)(neng)力范圍的(de)(de)情(qing)形。實(shi)(shi)(shi)驗室通(tong)(tong)過(guo)(guo)的(de)(de)檢(jian)驗能(neng)(neng)(neng)力范圍時,實(shi)(shi)(shi)際隱(yin)含的(de)(de)意思是包括產品(pin)標(biao)(biao)(biao)準(zhun)中引用標(biao)(biao)(biao)準(zhun)也(ye)通(tong)(tong)過(guo)(guo)實(shi)(shi)(shi)驗室評審。當其(qi)引用標(biao)(biao)(biao)準(zhun)出現標(biao)(biao)(biao)準(zhun)變更尤其(qi)是檢(jian)驗方法、環境設施(shi)有實(shi)(shi)(shi)際變化的(de)(de)情(qing)況(kuang)下,其(qi)產品(pin)檢(jian)驗的(de)(de)實(shi)(shi)(shi)際檢(jian)驗能(neng)(neng)(neng)力有可(ke)能(neng)(neng)(neng)出現變化。這(zhe)種(zhong)變化,可(ke)能(neng)(neng)(neng)會導致(zhi)實(shi)(shi)(shi)驗室不能(neng)(neng)(neng)按現行(xing)有效標(biao)(biao)(biao)準(zhun)正常開(kai)展檢(jian)驗工作。我(wo)們(men)把這(zhe)種(zhong)變化稱之(zhi)為(wei)“隱(yin)性(xing)的(de)(de)”超(chao)范圍檢(jian)驗。

由于標準(zhun)(zhun)變更后需要重新進行能(neng)(neng)力確(que)認,個別實(shi)驗(yan)室(shi)怕麻(ma)煩,往(wang)往(wang)會等到監督評(ping)審或復評(ping)審時才進行確(que)認,從而導致超能(neng)(neng)力范圍(wei)檢驗(yan)。因(yin)此(ci),實(shi)驗(yan)室(shi)應(ying)關(guan)注(zhu)和避免這種(zhong)情況的發生,在能(neng)(neng)力未(wei)確(que)認前(qian),不得使用(yong)新標準(zhun)(zhun)開展檢驗(yan)。對于產品標準(zhun)(zhun)中(zhong)引用(yong)標準(zhun)(zhun)的變更,實(shi)驗(yan)室(shi)更應(ying)關(guan)注(zhu),以免采(cai)用(yong)作廢標準(zhun)(zhun)開展檢驗(yan)而造(zao)成檢驗(yan)結果的誤判和可(ke)能(neng)(neng)帶來(lai)的檢驗(yan)風(feng)險。

3.亂用CNAS、CMA、標(biao)識很(hen)多實(shi)驗(yan)(yan)(yan)室通過(guo)了(le)CNAS認可,也通過(guo)了(le)實(shi)驗(yan)(yan)(yan)室資質認定,而(er)這(zhe)兩(liang)個(ge)(ge)認可不(bu)在(zai)同一(yi)(yi)時(shi)間進行認可,當申請擴項或標(biao)準變(bian)更時(shi),往往是一(yi)(yi)個(ge)(ge)通過(guo)了(le),而(er)另(ling)一(yi)(yi)個(ge)(ge)還要過(guo)段時(shi)間才認可。有部(bu)分(fen)實(shi)驗(yan)(yan)(yan)室尤其是部(bu)分(fen)中(zhong)小實(shi)驗(yan)(yan)(yan)室,取(qu)得能力范(fan)(fan)圍以CMA為主,CNAS的能力范(fan)(fan)圍很(hen)小,而(er)檢(jian)驗(yan)(yan)(yan)報(bao)告的封(feng)面(mian)一(yi)(yi)般是將幾個(ge)(ge)標(biao)識均直接印在(zai)封(feng)面(mian)上,這(zhe)使得實(shi)驗(yan)(yan)(yan)室誤用標(biao)識。因此,實(shi)驗(yan)(yan)(yan)室應按(an)通過(guo)的能力范(fan)(fan)圍分(fen)別印制檢(jian)驗(yan)(yan)(yan)封(feng)面(mian),按(an)規定使用。


02設備及環境設施(shi)不能(neng)滿足標準要求

設(she)(she)備(bei)及環(huan)境設(she)(she)施(shi)(shi)是(shi)實驗(yan)(yan)室開展檢(jian)驗(yan)(yan)的必備(bei)工(gong)具,設(she)(she)備(bei)及環(huan)境設(she)(she)施(shi)(shi)是(shi)否滿(man)足(zu)標準(zhun)(zhun),將直接影響數據的準(zhun)(zhun)確性,對檢(jian)驗(yan)(yan)結果和判(pan)定有重大影響。設(she)(she)備(bei)及環(huan)境設(she)(she)施(shi)(shi)不能滿(man)足(zu)要(yao)求(qiu)的原因主要(yao)有:

1.量(liang)(liang)值溯源(yuan)未按(an)(an)規(gui)定(ding)(ding)儀(yi)(yi)器(qi)(qi)設(she)備(bei)(bei)的(de)(de)量(liang)(liang)值溯源(yuan)是保證其測量(liang)(liang)準(zhun)(zhun)確性的(de)(de)主要手段之(zhi)一(yi),按(an)(an)照實(shi)驗室資質認定(ding)(ding)評(ping)審(shen)準(zhun)(zhun)則(ze)要求(qiu),儀(yi)(yi)器(qi)(qi)設(she)備(bei)(bei)使用(yong)(yong)前應經(jing)過檢(jian)(jian)定(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun)(zhun),必要時,在二(er)次檢(jian)(jian)定(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun)(zhun)之(zhi)間應進行期(qi)間核查,以保證數據(ju)的(de)(de)準(zhun)(zhun)確性。但部(bu)分實(shi)驗室未按(an)(an)規(gui)定(ding)(ding)將(jiang)儀(yi)(yi)器(qi)(qi)送計(ji)量(liang)(liang)部(bu)門(men)(men)進行檢(jian)(jian)定(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun)(zhun),造成儀(yi)(yi)器(qi)(qi)失準(zhun)(zhun),還有個別檢(jian)(jian)定(ding)(ding)/校(xiao)(xiao)準(zhun)(zhun)實(shi)驗室不(bu)經(jing)檢(jian)(jian)定(ding)(ding)/校(xiao)(xiao)準(zhun)(zhun)就(jiu)出具證書。實(shi)驗室內(nei)經(jing)常會(hui)有儀(yi)(yi)器(qi)(qi)設(she)備(bei)(bei)是沒有檢(jian)(jian)定(ding)(ding)規(gui)程或(huo)(huo)校(xiao)(xiao)準(zhun)(zhun)方法,計(ji)量(liang)(liang)部(bu)門(men)(men)往(wang)往(wang)圖省事,僅對儀(yi)(yi)器(qi)(qi)使用(yong)(yong)的(de)(de)計(ji)量(liang)(liang)器(qi)(qi)具進行檢(jian)(jian)定(ding)(ding)或(huo)(huo)校(xiao)(xiao)準(zhun)(zhun),而其總體設(she)備(bei)(bei)是否(fou)合格則(ze)不(bu)做(zuo)綜合判(pan)定(ding)(ding),使得(de)設(she)備(bei)(bei)顯示的(de)(de)數據(ju)是否(fou)準(zhun)(zhun)確不(bu)得(de)而知。如果此時不(bu)采用(yong)(yong)能力驗證或(huo)(huo)實(shi)驗室比對的(de)(de)方法對儀(yi)(yi)器(qi)(qi)進行驗證,則(ze)會(hui)帶來很大的(de)(de)風險。

2.設備(bei)(bei)精度下(xia)降有的(de)(de)檢(jian)驗(yan)(yan)(yan)機(ji)構,尤其是中小型檢(jian)驗(yan)(yan)(yan)機(ji)構,由于資金(jin)的(de)(de)不(bu)足,使得設備(bei)(bei)長期服役,得不(bu)到及(ji)時(shi)(shi)更(geng)新(xin)。由于設備(bei)(bei)使用年限過長,或(huo)使用環(huan)境(jing)惡(e)劣,設備(bei)(bei)的(de)(de)精度下(xia)降,檢(jian)驗(yan)(yan)(yan)數(shu)據(ju)的(de)(de)可信(xin)度下(xia)降。因此,實驗(yan)(yan)(yan)室(shi)應及(ji)時(shi)(shi)更(geng)新(xin)設備(bei)(bei),當設備(bei)(bei)一(yi)時(shi)(shi)不(bu)能更(geng)新(xin),應增加(jia)校準的(de)(de)頻次、做期間核查、采用實驗(yan)(yan)(yan)室(shi)間比對或(huo)設備(bei)(bei)間比對等(deng)方式驗(yan)(yan)(yan)證設備(bei)(bei)的(de)(de)可靠性,以保證檢(jian)測數(shu)據(ju)準確可靠。

3.環境(jing)(jing)設施不(bu)符合標(biao)準(zhun)要求(qiu)(qiu)很(hen)(hen)多試驗(yan)(yan)對(dui)(dui)環境(jing)(jing)設施的(de)(de)要求(qiu)(qiu)是(shi)很(hen)(hen)高(gao)的(de)(de),對(dui)(dui)檢(jian)(jian)驗(yan)(yan)結果的(de)(de)影響很(hen)(hen)大,但(dan)部(bu)分檢(jian)(jian)驗(yan)(yan)機構對(dui)(dui)環境(jing)(jing)設施不(bu)是(shi)很(hen)(hen)重視,不(bu)能很(hen)(hen)好(hao)地滿足檢(jian)(jian)驗(yan)(yan)的(de)(de)要求(qiu)(qiu)。如:水(shui)(shui)(shui)泥(ni)檢(jian)(jian)驗(yan)(yan)的(de)(de)水(shui)(shui)(shui)養護,水(shui)(shui)(shui)的(de)(de)溫(wen)(wen)度(du)規定為(20±1)℃,超(chao)出標(biao)準(zhun)規定的(de)(de)溫(wen)(wen)度(du)范圍,尤其(qi)是(shi)超(chao)出溫(wen)(wen)度(du)較多時,對(dui)(dui)檢(jian)(jian)驗(yan)(yan)結果影響就會(hui)很(hen)(hen)大。而我(wo)們在(zai)評審中發現,部(bu)分水(shui)(shui)(shui)泥(ni)實(shi)驗(yan)(yan)室(shi)中,水(shui)(shui)(shui)養護都(dou)是(shi)在(zai)水(shui)(shui)(shui)池中進行,水(shui)(shui)(shui)溫(wen)(wen)低(di)了加(jia)(jia)熱水(shui)(shui)(shui),水(shui)(shui)(shui)溫(wen)(wen)高(gao)了加(jia)(jia)冷水(shui)(shui)(shui),這樣的(de)(de)溫(wen)(wen)控方式無法保證水(shui)(shui)(shui)溫(wen)(wen)控制精度(du),其(qi)養護后的(de)(de)檢(jian)(jian)測(ce)數據也是(shi)不(bu)準(zhun)確的(de)(de)。因此,對(dui)(dui)環境(jing)(jing)設施要求(qiu)(qiu)高(gao)的(de)(de)試驗(yan)(yan),實(shi)驗(yan)(yan)室(shi)應確保檢(jian)(jian)測(ce)的(de)(de)環境(jing)(jing)設施符合標(biao)準(zhun)要求(qiu)(qiu)。


03檢測過(guo)程(cheng)質量(liang)缺乏有效控制(zhi)

由于檢(jian)測過(guo)程不(bu)(bu)規范而產生的(de)檢(jian)驗(yan)結(jie)論不(bu)(bu)正(zheng)確或數(shu)據(ju)不(bu)(bu)準確也時有發生,主要表現在(zai):

1.檢(jian)驗(yan)(yan)(yan)和計算粗(cu)心大意(yi)檢(jian)驗(yan)(yan)(yan)是一個需要專注的(de)過(guo)程(cheng),稍有(you)(you)疏(shu)忽,就容(rong)易出現(xian)差(cha)錯(cuo)。而(er)隨著(zhu)手機的(de)普(pu)及(ji),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)數據計算過(guo)程(cheng)中(zhong)接(jie)聽手機的(de)現(xian)象(xiang)非常普(pu)遍(bian),如此以(yi)及(ji)其(qi)他的(de)粗(cu)心造成(cheng)檢(jian)驗(yan)(yan)(yan)失誤(wu)的(de)案例(li)也時有(you)(you)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)檢(jian)驗(yan)(yan)(yan)失誤(wu)雖(sui)不常見,但一旦出現(xian)這種(zhong)情況,將直接(jie)導(dao)致檢(jian)驗(yan)(yan)(yan)結果出現(xian)差(cha)錯(cuo)。

2.對(dui)可疑數據(ju)不(bu)敏感(gan)一(yi)(yi)般(ban)而言,每一(yi)(yi)種物質都有(you)其自身(shen)特性,其檢測(ce)數據(ju)應在一(yi)(yi)定范圍,如,苯板(ban)的(de)導熱系數不(bu)可能為0,采用不(bu)同鋁合(he)金建(jian)筑(zhu)型(xing)材和普通單層玻璃的(de)建(jian)筑(zhu)外窗(chuang)不(bu)可能達到保溫窗(chuang)的(de)要求等等。當(dang)檢驗(yan)人員(yuan)或(huo)檢驗(yan)報告的(de)批(pi)準人員(yuan)發現不(bu)符合(he)一(yi)(yi)般(ban)規律的(de)可疑數據(ju)時,應對(dui)可疑數據(ju)進行復核(he),并查清是(shi)(shi)否儀器設備有(you)問(wen)題或(huo)檢驗(yan)人員(yuan)操作失誤。能夠正確判(pan)斷數據(ju)是(shi)(shi)否可疑,是(shi)(shi)建(jian)立在對(dui)被檢測(ce)產品的(de)理(li)論和檢測(ce)實(shi)踐有(you)大量積(ji)累的(de)基(ji)(ji)礎(chu)上,這也是(shi)(shi)一(yi)(yi)個(ge)成(cheng)熟(shu)的(de)檢驗(yan)人員(yuan),檢驗(yan)報告審核(he)、批(pi)準人員(yuan)應有(you)的(de)基(ji)(ji)本(ben)素質,沒有(you)長期(qi)訓(xun)練,是(shi)(shi)不(bu)可能敏感(gan)地(di)察覺檢驗(yan)數據(ju)可疑的(de)。

3.臨界(jie)值的(de)(de)(de)處理(li)有(you)偏差在(zai)檢(jian)驗(yan)過程(cheng)中,由(you)于(yu)(yu)測(ce)量(liang)不(bu)確(que)定度的(de)(de)(de)存在(zai),可(ke)能會(hui)導致(zhi)檢(jian)驗(yan)項目在(zai)臨界(jie)值的(de)(de)(de)判斷時有(you)偏差。例如:涂(tu)(tu)層厚(hou)度,對于(yu)(yu)普(pu)通(tong)裝飾用(yong)鋁塑(su)板(ban)(ban),由(you)于(yu)(yu)涂(tu)(tu)層厚(hou)度相對較小,測(ce)量(liang)時“0”點的(de)(de)(de)精確(que)校準對于(yu)(yu)處在(zai)標準規定的(de)(de)(de)臨界(jie)狀態的(de)(de)(de)產(chan)品(pin)(pin)而言顯得尤為重要(yao)。如果(guo)用(yong)普(pu)通(tong)標準基板(ban)(ban)進行調(diao)0,則可(ke)能出現(1~2)um的(de)(de)(de)偏差,這將可(ke)能導致(zhi)產(chan)品(pin)(pin)由(you)“合(he)格”滑向(xiang)“不(bu)合(he)格”邊緣。對于(yu)(yu)普(pu)通(tong)裝飾用(yong)鋁塑(su)板(ban)(ban),可(ke)以將產(chan)品(pin)(pin)除去涂(tu)(tu)層,在(zai)其裸露的(de)(de)(de)基材(cai)上進行調(diao)0,以保(bao)證結(jie)果(guo)的(de)(de)(de)準確(que)客觀(guan)性。因此,對于(yu)(yu)有(you)臨界(jie)值的(de)(de)(de)檢(jian)驗(yan)結(jie)果(guo),應組(zu)織(zhi)由(you)不(bu)同檢(jian)驗(yan)人員(yuan)或者(zhe)儀器設備進行多(duo)次的(de)(de)(de)比(bi)對試驗(yan),確(que)保(bao)檢(jian)驗(yan)結(jie)果(guo)科學公正。

4.對標(biao)準(zhun)理(li)解(jie)有偏差檢(jian)驗是一項很嚴謹的(de)工作(zuo),個別檢(jian)驗人(ren)員(yuan)對于標(biao)準(zhun)的(de)理(li)解(jie)和(he)使用不正(zheng)確(que)也直接影響了(le)檢(jian)驗結(jie)果的(de)準(zhun)確(que)性。例如:氟碳(tan)涂層普(pu)(pu)通(tong)裝(zhuang)(zhuang)飾板檢(jian)測(ce),GB/T22412-2008規定(ding),對于氟碳(tan)涂層普(pu)(pu)通(tong)裝(zhuang)(zhuang)飾用鋁塑板,其(qi)涂層性能的(de)檢(jian)測(ce)應按照GB/T17748-2008進行(xing)。試驗中往往容(rong)易(yi)將(jiang)“普(pu)(pu)通(tong)裝(zhuang)(zhuang)飾用”的(de)概(gai)念先(xian)入為(wei)主,而忽略了(le)“其(qi)為(wei)氟碳(tan)涂層”的(de)事實,導致采(cai)用檢(jian)驗標(biao)準(zhun)不正(zheng)確(que),最終導致檢(jian)驗結(jie)果失(shi)效。

5.新上(shang)崗(gang)檢(jian)(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan)缺(que)乏(fa)有(you)效(xiao)監(jian)督近年來,許多檢(jian)(jian)(jian)驗(yan)(yan)(yan)機構開展(zhan)了新一(yi)輪(lun)的(de)(de)擴張,使得有(you)經(jing)驗(yan)(yan)(yan)的(de)(de)檢(jian)(jian)(jian)驗(yan)(yan)(yan)人(ren)員(yuan)(yuan)嚴重缺(que)乏(fa),個別實驗(yan)(yan)(yan)室(shi)新進(jin)人(ren)員(yuan)(yuan)僅(jin)僅(jin)通過(guo)幾(ji)個月的(de)(de)培訓就上(shang)崗(gang)開展(zhan)檢(jian)(jian)(jian)驗(yan)(yan)(yan)工作,這類檢(jian)(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan)對(dui)檢(jian)(jian)(jian)驗(yan)(yan)(yan)不(bu)(bu)太(tai)熟(shu)練,對(dui)異(yi)常數據缺(que)乏(fa)敏(min)感,而又對(dui)這類人(ren)員(yuan)(yuan)缺(que)乏(fa)有(you)效(xiao)的(de)(de)監(jian)督,使得他們(men)出現錯誤的(de)(de)可(ke)能性(xing)遠遠超過(guo)成熟(shu)員(yuan)(yuan)工。因此(ci),使用經(jing)驗(yan)(yan)(yan)不(bu)(bu)足而又缺(que)少監(jian)督的(de)(de)新上(shang)崗(gang)檢(jian)(jian)(jian)驗(yan)(yan)(yan)員(yuan)(yuan),潛在風(feng)險較大。因此(ci),要按照實驗(yan)(yan)(yan)室(shi)資質認定評(ping)審準則(ze)的(de)(de)要求,對(dui)使用在培人(ren)員(yuan)(yuan)應有(you)足夠的(de)(de)監(jian)督。實驗(yan)(yan)(yan)室(shi)在使用新上(shang)崗(gang)人(ren)員(yuan)(yuan)或(huo)轉崗(gang)人(ren)員(yuan)(yuan)時,除應考核上(shang)崗(gang)外,檢(jian)(jian)(jian)驗(yan)(yan)(yan)時實驗(yan)(yan)(yan)室(shi)監(jian)督員(yuan)(yuan)應加(jia)強監(jian)督,防(fang)止出現檢(jian)(jian)(jian)驗(yan)(yan)(yan)失(shi)誤。


04檢測原始記錄不規(gui)范缺少可追(zhui)溯性

檢(jian)(jian)驗(yan)(yan)原始記錄不規范(fan),雖然(ran)不會改變(bian)檢(jian)(jian)驗(yan)(yan)結果,但(dan)原始記錄是實(shi)驗(yan)(yan)室(shi)檢(jian)(jian)驗(yan)(yan)過程(cheng)的(de)(de)證明材料,一(yi)旦(dan)實(shi)驗(yan)(yan)室(shi)與檢(jian)(jian)驗(yan)(yan)委托方(fang)或(huo)相關第(di)三方(fang)發生糾紛時,檢(jian)(jian)驗(yan)(yan)原始記錄就不能起到(dao)證據的(de)(de)作用,將實(shi)驗(yan)(yan)室(shi)置于危險境(jing)地(di)。每個(ge)實(shi)驗(yan)(yan)室(shi)都會按實(shi)驗(yan)(yan)室(shi)資質認定評審準則的(de)(de)規定,制訂自己的(de)(de)記錄管理規定,但(dan)個(ge)別實(shi)驗(yan)(yan)室(shi)不能很好地(di)執行,表現(xian)在:

1.檢驗(yan)樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)(zhun)備(bei)、處置(zhi)和(he)制(zhi)(zhi)備(bei)記錄不(bu)(bu)全(quan)(quan)檢驗(yan)原(yuan)(yuan)始(shi)記錄最基本的(de)(de)(de)要求是將觀(guan)(guan)察到的(de)(de)(de)情況(kuang)(kuang)、數據加(jia)以(yi)記錄,這里指的(de)(de)(de)觀(guan)(guan)察到的(de)(de)(de)情況(kuang)(kuang)包括從樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)(zhun)備(bei)、處置(zhi)和(he)制(zhi)(zhi)備(bei)開始(shi)到檢驗(yan)結束所(suo)觀(guan)(guan)察到的(de)(de)(de)全(quan)(quan)過(guo)(guo)(guo)程(cheng)。實(shi)驗(yan)室往(wang)往(wang)對檢驗(yan)過(guo)(guo)(guo)程(cheng)觀(guan)(guan)察到的(de)(de)(de)情況(kuang)(kuang)記錄比較(jiao)詳細(xi),但(dan)對樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)(zhun)備(bei)、處置(zhi)和(he)制(zhi)(zhi)備(bei)過(guo)(guo)(guo)程(cheng),如(ru)樣(yang)(yang)品(pin)在恒溫(wen)恒濕間的(de)(de)(de)等溫(wen)過(guo)(guo)(guo)程(cheng)、水(shui)泥(ni)的(de)(de)(de)水(shui)養護過(guo)(guo)(guo)程(cheng)等過(guo)(guo)(guo)程(cheng)記錄不(bu)(bu)全(quan)(quan),甚至不(bu)(bu)予記錄。按照“實(shi)驗(yan)室記錄應(ying)及時(shi)、準(zhun)(zhun)(zhun)確、完(wan)整”的(de)(de)(de)要求,檢驗(yan)樣(yang)(yang)品(pin)的(de)(de)(de)準(zhun)(zhun)(zhun)備(bei)、處置(zhi)和(he)制(zhi)(zhi)備(bei),也是檢驗(yan)的(de)(de)(de)過(guo)(guo)(guo)程(cheng),也應(ying)及時(shi)、準(zhun)(zhun)(zhun)確、完(wan)整地加(jia)以(yi)記錄,同時(shi),對檢驗(yan)員要加(jia)強教育,要有完(wan)整準(zhun)(zhun)(zhun)確地記錄原(yuan)(yuan)始(shi)記錄的(de)(de)(de)意識。

2.引(yin)用(yong)(yong)(yong)(yong)數(shu)(shu)據(ju)缺(que)少可追(zhui)溯(su)(su)性檢(jian)(jian)驗后的(de)(de)(de)計(ji)算(suan)過(guo)程中(zhong)(zhong)(zhong)往往需要引(yin)用(yong)(yong)(yong)(yong)一(yi)些常數(shu)(shu)或(huo)(huo)(huo)(huo)系數(shu)(shu)。所(suo)有(you)(you)引(yin)用(yong)(yong)(yong)(yong)數(shu)(shu)據(ju)都應(ying)有(you)(you)出(chu)處(chu)(chu),常數(shu)(shu)主(zhu)要是(shi)標準(zhun)(zhun)中(zhong)(zhong)(zhong)給出(chu),系數(shu)(shu)則是(shi)在(zai)(zai)(zai)檢(jian)(jian)驗前作出(chu)標準(zhun)(zhun)曲線(xian)(xian)后得出(chu),標準(zhun)(zhun)曲線(xian)(xian)不是(shi)做出(chu)一(yi)次后永(yong)遠(yuan)使(shi)(shi)用(yong)(yong)(yong)(yong),而是(shi)應(ying)定(ding)期做標準(zhun)(zhun)曲線(xian)(xian),因此,在(zai)(zai)(zai)使(shi)(shi)用(yong)(yong)(yong)(yong)標準(zhun)(zhun)曲線(xian)(xian)時(shi),應(ying)在(zai)(zai)(zai)原始記(ji)(ji)錄中(zhong)(zhong)(zhong)附上本(ben)次檢(jian)(jian)測(ce)使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)標準(zhun)(zhun)曲線(xian)(xian)或(huo)(huo)(huo)(huo)注(zhu)明(ming)標準(zhun)(zhun)曲線(xian)(xian)編號。而有(you)(you)的(de)(de)(de)實(shi)驗室在(zai)(zai)(zai)記(ji)(ji)錄原始記(ji)(ji)錄時(shi),并不將(jiang)標準(zhun)(zhun)曲線(xian)(xian)附在(zai)(zai)(zai)原始記(ji)(ji)錄中(zhong)(zhong)(zhong)或(huo)(huo)(huo)(huo)在(zai)(zai)(zai)原始記(ji)(ji)錄中(zhong)(zhong)(zhong)注(zhu)明(ming)出(chu)處(chu)(chu),使(shi)(shi)其引(yin)用(yong)(yong)(yong)(yong)的(de)(de)(de)數(shu)(shu)據(ju)不具(ju)有(you)(you)可追(zhui)溯(su)(su)性。因此,檢(jian)(jian)驗人員(yuan)在(zai)(zai)(zai)記(ji)(ji)錄檢(jian)(jian)驗原始記(ji)(ji)錄時(shi),應(ying)將(jiang)引(yin)用(yong)(yong)(yong)(yong)的(de)(de)(de)標準(zhun)(zhun)曲線(xian)(xian)附在(zai)(zai)(zai)原始記(ji)(ji)錄中(zhong)(zhong)(zhong),或(huo)(huo)(huo)(huo)將(jiang)引(yin)用(yong)(yong)(yong)(yong)的(de)(de)(de)標準(zhun)(zhun)曲線(xian)(xian)的(de)(de)(de)編號在(zai)(zai)(zai)原始記(ji)(ji)錄中(zhong)(zhong)(zhong)注(zhu)明(ming),使(shi)(shi)得原始記(ji)(ji)錄中(zhong)(zhong)(zhong)的(de)(de)(de)引(yin)用(yong)(yong)(yong)(yong)數(shu)(shu)據(ju)具(ju)有(you)(you)可追(zhui)溯(su)(su)性。

3.從筆(bi)記(ji)(ji)(ji)本上轉抄檢(jian)驗(yan)記(ji)(ji)(ji)錄(lu)(lu)檢(jian)驗(yan)原(yuan)(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)是原(yuan)(yuan)(yuan)始(shi)的觀察記(ji)(ji)(ji)錄(lu)(lu),應該在觀察時(shi)實時(shi)記(ji)(ji)(ji)錄(lu)(lu),有(you)些檢(jian)驗(yan)員出(chu)于自(zi)己(ji)保留數據的原(yuan)(yuan)(yuan)因(yin),也有(you)些檢(jian)驗(yan)員出(chu)于保持原(yuan)(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)干凈整潔的原(yuan)(yuan)(yuan)因(yin),養成了(le)將(jiang)原(yuan)(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)先記(ji)(ji)(ji)錄(lu)(lu)在筆(bi)記(ji)(ji)(ji)本上,過后再轉抄到格(ge)式化(hua)(hua)的原(yuan)(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)上。因(yin)此,實驗(yan)室有(you)必要要求檢(jian)驗(yan)人員將(jiang)記(ji)(ji)(ji)錄(lu)(lu)及時(shi)記(ji)(ji)(ji)錄(lu)(lu)在受控的格(ge)式化(hua)(hua)的原(yuan)(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)表式中(zhong),不得(de)先記(ji)(ji)(ji)錄(lu)(lu)在筆(bi)記(ji)(ji)(ji)本上然后轉抄到格(ge)式化(hua)(hua)的原(yuan)(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)上。


05檢(jian)驗報告的錯誤

檢驗(yan)報(bao)(bao)告是檢驗(yan)機構交給(gei)客戶的(de)最終(zhong)產品(pin),因此檢驗(yan)報(bao)(bao)告質量(liang)也應該是實驗(yan)室(shi)重點關(guan)注的(de)內(nei)容之一。檢驗(yan)報(bao)(bao)告的(de)錯誤(wu)通常有以下兩種表現:

1.報告(gao)(gao)編(bian)制(zhi)錯(cuo)(cuo)誤(wu)(wu)檢(jian)驗(yan)報告(gao)(gao)編(bian)制(zhi)人員(yuan)在編(bian)制(zhi)檢(jian)驗(yan)報告(gao)(gao)過(guo)程中,經(jing)常(chang)會因為疏忽出(chu)現(xian)輸入性錯(cuo)(cuo)誤(wu)(wu),如:技術要求、實測數(shu)據、單(dan)項(xiang)判定等(deng)文字或(huo)數(shu)字輸入錯(cuo)(cuo)誤(wu)(wu),造成誤(wu)(wu)判;委(wei)托檢(jian)驗(yan)日期、樣品生產日期、檢(jian)驗(yan)日期等(deng)日期輸入錯(cuo)(cuo)誤(wu)(wu),造成時(shi)間(jian)(jian)邏(luo)輯上的(de)(de)問題。當前(qian),絕大(da)多數(shu)實驗(yan)室(shi)都采用業務管理網絡系(xi)統編(bian)制(zhi)檢(jian)驗(yan)報告(gao)(gao),對(dui)(dui)于時(shi)間(jian)(jian)邏(luo)輯上的(de)(de)問題,可(ke)以(yi)通過(guo)在系(xi)統上進行時(shi)間(jian)(jian)關(guan)聯提醒設(she)置,對(dui)(dui)不符合(he)邏(luo)輯的(de)(de)時(shi)間(jian)(jian)進行提醒,可(ke)有效(xiao)防止(zhi)時(shi)間(jian)(jian)邏(luo)輯錯(cuo)(cuo)誤(wu)(wu);對(dui)(dui)其他輸入性錯(cuo)(cuo)誤(wu)(wu),則要通過(guo)加強報告(gao)(gao)編(bian)制(zhi)人員(yuan)和審核(he)、批準人員(yuan)的(de)(de)責(ze)任心來解(jie)決。

2.非(fei)授權(quan)(quan)(quan)人簽(qian)(qian)(qian)字(zi)(zi)按(an)照實(shi)驗(yan)(yan)室資質(zhi)認定的要求,檢驗(yan)(yan)報(bao)告(gao)的簽(qian)(qian)(qian)發(fa)應由授權(quan)(quan)(quan)簽(qian)(qian)(qian)字(zi)(zi)人簽(qian)(qian)(qian)發(fa)。授權(quan)(quan)(quan)簽(qian)(qian)(qian)字(zi)(zi)人應對檢測技(ji)術、結果評定、設備維護(hu)校準、記(ji)錄和報(bao)告(gao)核查(cha)程序(xu)等非(fei)常熟悉,因此,授權(quan)(quan)(quan)簽(qian)(qian)(qian)字(zi)(zi)人的授權(quan)(quan)(quan)簽(qian)(qian)(qian)字(zi)(zi)的能力(li)范(fan)(fan)圍、試驗(yan)(yan)地(di)址(zhi)范(fan)(fan)圍是有限(xian)制的。在實(shi)驗(yan)(yan)室運作過(guo)程中,部分非(fei)授權(quan)(quan)(quan)簽(qian)(qian)(qian)字(zi)(zi)人簽(qian)(qian)(qian)發(fa)檢驗(yan)(yan)報(bao)告(gao),或授權(quan)(quan)(quan)簽(qian)(qian)(qian)字(zi)(zi)人不了解(jie)自己的授權(quan)(quan)(quan)簽(qian)(qian)(qian)字(zi)(zi)能力(li)范(fan)(fan)圍或試驗(yan)(yan)地(di)址(zhi)范(fan)(fan)圍,超越授權(quan)(quan)(quan)范(fan)(fan)圍簽(qian)(qian)(qian)發(fa)檢驗(yan)(yan)報(bao)告(gao),造成檢驗(yan)(yan)報(bao)告(gao)的錯誤。這種超越能力(li)范(fan)(fan)圍批準檢驗(yan)(yan)報(bao)告(gao),違反了實(shi)驗(yan)(yan)室標(biao)識使(shi)用的規定,會使(shi)檢驗(yan)(yan)報(bao)告(gao)失去(qu)法(fa)律效力(li)。


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