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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(zhe): 瀏覽數:1227
01超范(fan)圍蓋章

按照(zhao)《計(ji)量(liang)(liang)(liang)法(fa)》規定(ding),對社會出具具有(you)證(zheng)明作用的數據實(shi)驗(yan)(yan)室(shi)必須經(jing)過實(shi)驗(yan)(yan)室(shi)資質(zhi)(zhi)認定(ding)(計(ji)量(liang)(liang)(liang)認證(zheng))和/或CNAS認可,而資質(zhi)(zhi)認定(ding)和/或CNAS認可是(shi)限定(ding)實(shi)驗(yan)(yan)室(shi)能(neng)(neng)力(li)范(fan)(fan)圍(wei)(wei)的,實(shi)驗(yan)(yan)室(shi)只能(neng)(neng)在能(neng)(neng)力(li)范(fan)(fan)圍(wei)(wei)限定(ding)的產品(pin)(pin)(參數)范(fan)(fan)圍(wei)(wei)內出具帶相應標識的檢(jian)(jian)(jian)驗(yan)(yan)報告,檢(jian)(jian)(jian)驗(yan)(yan)使用的標準不(bu)在能(neng)(neng)力(li)范(fan)(fan)圍(wei)(wei)者(zhe),我們稱之為超(chao)范(fan)(fan)圍(wei)(wei)檢(jian)(jian)(jian)驗(yan)(yan)。國家(jia)質(zhi)(zhi)檢(jian)(jian)(jian)總局發(fa)布執行的《產品(pin)(pin)質(zhi)(zhi)量(liang)(liang)(liang)監督(du)抽查管(guan)理辦法(fa)》、《產品(pin)(pin)質(zhi)(zhi)量(liang)(liang)(liang)檢(jian)(jian)(jian)驗(yan)(yan)機(ji)(ji)構工作質(zhi)(zhi)量(liang)(liang)(liang)分類(lei)監管(guan)辦法(fa)》以及其他(ta)規定(ding)中(zhong)也(ye)都明確規定(ding)實(shi)驗(yan)(yan)室(shi)不(bu)得超(chao)能(neng)(neng)力(li)范(fan)(fan)圍(wei)(wei)開展檢(jian)(jian)(jian)測(ce)工作,但(dan)在實(shi)際工作過程中(zhong),個(ge)別檢(jian)(jian)(jian)驗(yan)(yan)機(ji)(ji)構超(chao)能(neng)(neng)力(li)范(fan)(fan)圍(wei)(wei)檢(jian)(jian)(jian)測(ce)情況(kuang)時有(you)發(fa)生(sheng)。超(chao)范(fan)(fan)圍(wei)(wei)檢(jian)(jian)(jian)驗(yan)(yan)主要有(you)三(san)種形(xing)式(shi):

1.故意超能(neng)力范圍檢(jian)驗(yan)實(shi)驗(yan)室(shi)或實(shi)驗(yan)室(shi)中個別人(ren)員(yuan)為(wei)(wei)滿足客戶要(yao)求(qiu),為(wei)(wei)實(shi)驗(yan)室(shi)爭取經濟利益,對(dui)不(bu)在能(neng)力范圍內(nei)的(de)產品(pin)開(kai)展檢(jian)驗(yan)工作(zuo),出(chu)具帶(dai)標(biao)識的(de)檢(jian)驗(yan)報(bao)告(gao);或實(shi)驗(yan)室(shi)人(ren)員(yuan)以為(wei)(wei)采用標(biao)準中的(de)個別標(biao)準在能(neng)力范圍內(nei),誤將(jiang)產品(pin)進行檢(jian)驗(yan)并出(chu)具帶(dai)標(biao)識的(de)檢(jian)驗(yan)報(bao)告(gao)。

近年(nian)來,質(zhi)檢(jian)總局(ju)(ju)、認監委、省市質(zhi)監局(ju)(ju)對超能(neng)(neng)力范(fan)圍檢(jian)測(ce)的(de)(de)處罰都(dou)非常嚴厲,甚至停止個別實(shi)驗(yan)室(shi)的(de)(de)檢(jian)測(ce)活動。因此,實(shi)驗(yan)室(shi)應將超能(neng)(neng)力范(fan)圍檢(jian)測(ce)的(de)(de)后果向(xiang)每(mei)一位(wei)員工宣傳(chuan),不能(neng)(neng)為經濟利益(yi)或所謂的(de)(de)為企業(ye)著想而故意超能(neng)(neng)力范(fan)圍檢(jian)測(ce);同(tong)時實(shi)驗(yan)室(shi)還應認真梳理實(shi)驗(yan)室(shi)的(de)(de)能(neng)(neng)力范(fan)圍,對確實(shi)有設備(bei)、具(ju)備(bei)檢(jian)驗(yan)能(neng)(neng)力而不在能(neng)(neng)力范(fan)圍內的(de)(de)標準,應盡快進行擴項(xiang),提高為企業(ye)服務的(de)(de)能(neng)(neng)力。

2.標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)變(bian)更后(hou)未及時進行能力確認(ren)近年來(lai),不管(guan)是(shi)產品(pin)標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)還(huan)是(shi)方法(fa)標(biao)(biao)準(zhun)(zhun)(zhun)(zhun),標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)的變(bian)更非常頻繁(fan)。按照實驗(yan)(yan)室(shi)(shi)資質認(ren)定(ding)評(ping)(ping)審準(zhun)(zhun)(zhun)(zhun)則的規定(ding),實驗(yan)(yan)室(shi)(shi)使(shi)(shi)用(yong)的文件必須是(shi)現行有(you)(you)效(xiao)的,因此(ci),實驗(yan)(yan)室(shi)(shi)不能使(shi)(shi)用(yong)作(zuo)廢(fei)標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)開展(zhan)(zhan)檢測工作(zuo)。實驗(yan)(yan)室(shi)(shi)采用(yong)新標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)開展(zhan)(zhan)工作(zuo),則必須及時到實驗(yan)(yan)室(shi)(shi)資質認(ren)定(ding)和/或CNAS認(ren)可的發證機構進行標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)變(bian)更。目(mu)前,有(you)(you)的實驗(yan)(yan)室(shi)(shi)怕麻(ma)煩(fan),往(wang)往(wang)等到復(fu)評(ping)(ping)審或監督(du)評(ping)(ping)審時才(cai)進行標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)變(bian)更。在新標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)開始(shi)實施到通過實驗(yan)(yan)室(shi)(shi)復(fu)評(ping)(ping)審或監督(du)評(ping)(ping)審之間(jian)如果按新標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)開展(zhan)(zhan)檢驗(yan)(yan)工作(zuo),則是(shi)超(chao)范圍檢驗(yan)(yan)。

還有(you)(you)一種(zhong)隱性超能(neng)力(li)范圍(wei)的(de)情形。實(shi)(shi)驗(yan)(yan)(yan)(yan)室通(tong)過的(de)檢(jian)驗(yan)(yan)(yan)(yan)能(neng)力(li)范圍(wei)時,實(shi)(shi)際隱含的(de)意思是包(bao)括產品(pin)標準(zhun)(zhun)(zhun)(zhun)中引(yin)用標準(zhun)(zhun)(zhun)(zhun)也通(tong)過實(shi)(shi)驗(yan)(yan)(yan)(yan)室評審。當其(qi)引(yin)用標準(zhun)(zhun)(zhun)(zhun)出現(xian)標準(zhun)(zhun)(zhun)(zhun)變(bian)更尤其(qi)是檢(jian)驗(yan)(yan)(yan)(yan)方法、環境(jing)設施有(you)(you)實(shi)(shi)際變(bian)化(hua)的(de)情況下,其(qi)產品(pin)檢(jian)驗(yan)(yan)(yan)(yan)的(de)實(shi)(shi)際檢(jian)驗(yan)(yan)(yan)(yan)能(neng)力(li)有(you)(you)可能(neng)出現(xian)變(bian)化(hua)。這種(zhong)變(bian)化(hua),可能(neng)會(hui)導致實(shi)(shi)驗(yan)(yan)(yan)(yan)室不能(neng)按現(xian)行有(you)(you)效標準(zhun)(zhun)(zhun)(zhun)正常開展檢(jian)驗(yan)(yan)(yan)(yan)工作。我們(men)把(ba)這種(zhong)變(bian)化(hua)稱之為“隱性的(de)”超范圍(wei)檢(jian)驗(yan)(yan)(yan)(yan)。

由于(yu)標(biao)準變(bian)(bian)更(geng)后需要(yao)重新進行能(neng)(neng)(neng)力(li)確(que)認,個別(bie)實驗室怕麻煩,往往會(hui)等(deng)到監督評審或復評審時(shi)才進行確(que)認,從而(er)導致超能(neng)(neng)(neng)力(li)范圍檢(jian)(jian)驗。因此(ci),實驗室應關(guan)注和避(bi)免(mian)這種情況的(de)(de)發生(sheng),在能(neng)(neng)(neng)力(li)未確(que)認前,不得使(shi)用新標(biao)準開展(zhan)檢(jian)(jian)驗。對于(yu)產品標(biao)準中引用標(biao)準的(de)(de)變(bian)(bian)更(geng),實驗室更(geng)應關(guan)注,以免(mian)采用作廢(fei)標(biao)準開展(zhan)檢(jian)(jian)驗而(er)造成檢(jian)(jian)驗結果(guo)的(de)(de)誤判(pan)和可能(neng)(neng)(neng)帶(dai)來的(de)(de)檢(jian)(jian)驗風險(xian)。

3.亂用(yong)CNAS、CMA、標(biao)(biao)識很(hen)多實(shi)(shi)驗(yan)(yan)室(shi)通過了CNAS認(ren)(ren)(ren)可,也通過了實(shi)(shi)驗(yan)(yan)室(shi)資質(zhi)認(ren)(ren)(ren)定,而這兩個(ge)(ge)認(ren)(ren)(ren)可不(bu)在同一(yi)時間(jian)進行(xing)認(ren)(ren)(ren)可,當申請(qing)擴(kuo)項或標(biao)(biao)準變更(geng)時,往往是一(yi)個(ge)(ge)通過了,而另一(yi)個(ge)(ge)還要過段時間(jian)才認(ren)(ren)(ren)可。有部分實(shi)(shi)驗(yan)(yan)室(shi)尤其(qi)是部分中小(xiao)實(shi)(shi)驗(yan)(yan)室(shi),取得能(neng)力(li)范圍以(yi)CMA為(wei)主,CNAS的能(neng)力(li)范圍很(hen)小(xiao),而檢驗(yan)(yan)報告的封(feng)面(mian)(mian)一(yi)般是將幾個(ge)(ge)標(biao)(biao)識均直接印在封(feng)面(mian)(mian)上,這使得實(shi)(shi)驗(yan)(yan)室(shi)誤用(yong)標(biao)(biao)識。因此,實(shi)(shi)驗(yan)(yan)室(shi)應按通過的能(neng)力(li)范圍分別印制檢驗(yan)(yan)封(feng)面(mian)(mian),按規定使用(yong)。


02設備及環境設施不能滿足(zu)標準要求

設備(bei)及(ji)環(huan)境(jing)設施是實驗室開展檢(jian)驗的必備(bei)工具,設備(bei)及(ji)環(huan)境(jing)設施是否滿足標準,將直接影響數據(ju)的準確性,對(dui)檢(jian)驗結(jie)果和判定有重(zhong)大(da)影響。設備(bei)及(ji)環(huan)境(jing)設施不能滿足要(yao)求(qiu)的原因主要(yao)有:

1.量(liang)(liang)值溯源(yuan)未按(an)規定(ding)(ding)(ding)(ding)儀(yi)(yi)器(qi)設(she)備的(de)(de)量(liang)(liang)值溯源(yuan)是保(bao)(bao)證(zheng)(zheng)其測量(liang)(liang)準(zhun)(zhun)(zhun)確性的(de)(de)主(zhu)要(yao)手段之一,按(an)照實驗(yan)室資質認定(ding)(ding)(ding)(ding)評審準(zhun)(zhun)(zhun)則(ze)要(yao)求,儀(yi)(yi)器(qi)設(she)備使(shi)用(yong)前應經(jing)過檢(jian)定(ding)(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun),必要(yao)時,在二次檢(jian)定(ding)(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)之間應進行期間核查,以保(bao)(bao)證(zheng)(zheng)數據(ju)的(de)(de)準(zhun)(zhun)(zhun)確性。但部(bu)分(fen)實驗(yan)室未按(an)規定(ding)(ding)(ding)(ding)將儀(yi)(yi)器(qi)送(song)計(ji)量(liang)(liang)部(bu)門(men)進行檢(jian)定(ding)(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun),造成儀(yi)(yi)器(qi)失準(zhun)(zhun)(zhun),還有個別檢(jian)定(ding)(ding)(ding)(ding)/校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)實驗(yan)室不(bu)經(jing)檢(jian)定(ding)(ding)(ding)(ding)/校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)就(jiu)出具證(zheng)(zheng)書(shu)。實驗(yan)室內經(jing)常會有儀(yi)(yi)器(qi)設(she)備是沒(mei)有檢(jian)定(ding)(ding)(ding)(ding)規程(cheng)或(huo)(huo)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)方(fang)法,計(ji)量(liang)(liang)部(bu)門(men)往往圖省事,僅對(dui)(dui)儀(yi)(yi)器(qi)使(shi)用(yong)的(de)(de)計(ji)量(liang)(liang)器(qi)具進行檢(jian)定(ding)(ding)(ding)(ding)或(huo)(huo)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun),而(er)其總體(ti)設(she)備是否(fou)合(he)格則(ze)不(bu)做(zuo)綜合(he)判定(ding)(ding)(ding)(ding),使(shi)得設(she)備顯示(shi)的(de)(de)數據(ju)是否(fou)準(zhun)(zhun)(zhun)確不(bu)得而(er)知(zhi)。如果此時不(bu)采用(yong)能(neng)力驗(yan)證(zheng)(zheng)或(huo)(huo)實驗(yan)室比對(dui)(dui)的(de)(de)方(fang)法對(dui)(dui)儀(yi)(yi)器(qi)進行驗(yan)證(zheng)(zheng),則(ze)會帶來很大(da)的(de)(de)風險(xian)。

2.設備精度下(xia)降有的檢(jian)驗(yan)機構(gou),尤其是中小(xiao)型檢(jian)驗(yan)機構(gou),由于資金的不(bu)(bu)足,使(shi)得設備長期服役,得不(bu)(bu)到及(ji)時(shi)更(geng)(geng)新(xin)。由于設備使(shi)用(yong)年限(xian)過長,或(huo)使(shi)用(yong)環境惡(e)劣(lie),設備的精度下(xia)降,檢(jian)驗(yan)數據的可(ke)信度下(xia)降。因(yin)此,實驗(yan)室應及(ji)時(shi)更(geng)(geng)新(xin)設備,當設備一時(shi)不(bu)(bu)能更(geng)(geng)新(xin),應增(zeng)加校(xiao)準的頻次、做期間核查、采用(yong)實驗(yan)室間比對(dui)或(huo)設備間比對(dui)等方式(shi)驗(yan)證設備的可(ke)靠性,以保證檢(jian)測數據準確可(ke)靠。

3.環(huan)境(jing)(jing)設(she)施(shi)不(bu)符(fu)合標準(zhun)(zhun)要求(qiu)很多(duo)試(shi)驗(yan)對(dui)(dui)環(huan)境(jing)(jing)設(she)施(shi)的(de)要求(qiu)是(shi)很高的(de),對(dui)(dui)檢(jian)驗(yan)結果的(de)影(ying)響(xiang)很大,但部(bu)分檢(jian)驗(yan)機構對(dui)(dui)環(huan)境(jing)(jing)設(she)施(shi)不(bu)是(shi)很重視(shi),不(bu)能很好地滿足(zu)檢(jian)驗(yan)的(de)要求(qiu)。如:水(shui)泥檢(jian)驗(yan)的(de)水(shui)養(yang)(yang)護(hu),水(shui)的(de)溫(wen)(wen)度規(gui)定為(20±1)℃,超出標準(zhun)(zhun)規(gui)定的(de)溫(wen)(wen)度范圍(wei),尤(you)其是(shi)超出溫(wen)(wen)度較多(duo)時,對(dui)(dui)檢(jian)驗(yan)結果影(ying)響(xiang)就會很大。而我們在評審中(zhong)發現,部(bu)分水(shui)泥實驗(yan)室(shi)中(zhong),水(shui)養(yang)(yang)護(hu)都是(shi)在水(shui)池中(zhong)進行,水(shui)溫(wen)(wen)低(di)了加熱水(shui),水(shui)溫(wen)(wen)高了加冷水(shui),這(zhe)樣的(de)溫(wen)(wen)控方式(shi)無(wu)法保(bao)證水(shui)溫(wen)(wen)控制精度,其養(yang)(yang)護(hu)后的(de)檢(jian)測(ce)數(shu)據也是(shi)不(bu)準(zhun)(zhun)確的(de)。因此,對(dui)(dui)環(huan)境(jing)(jing)設(she)施(shi)要求(qiu)高的(de)試(shi)驗(yan),實驗(yan)室(shi)應確保(bao)檢(jian)測(ce)的(de)環(huan)境(jing)(jing)設(she)施(shi)符(fu)合標準(zhun)(zhun)要求(qiu)。


03檢(jian)測過(guo)程質量缺乏有(you)效控(kong)制

由于檢測過程(cheng)不(bu)規范而(er)產生(sheng)的檢驗結論不(bu)正(zheng)確或(huo)數據不(bu)準確也時有發生(sheng),主要表現在(zai):

1.檢(jian)(jian)驗(yan)(yan)(yan)和(he)計算(suan)粗(cu)心(xin)大意檢(jian)(jian)驗(yan)(yan)(yan)是一個需要專注的過程,稍(shao)有疏忽,就容易(yi)出現(xian)(xian)(xian)差錯(cuo)。而隨著(zhu)手機的普(pu)及,檢(jian)(jian)驗(yan)(yan)(yan)過程中,檢(jian)(jian)驗(yan)(yan)(yan)人員在檢(jian)(jian)驗(yan)(yan)(yan)或(huo)檢(jian)(jian)驗(yan)(yan)(yan)后的數據計算(suan)過程中接聽手機的現(xian)(xian)(xian)象非常(chang)普(pu)遍,如此以及其他(ta)的粗(cu)心(xin)造成檢(jian)(jian)驗(yan)(yan)(yan)失誤(wu)的案例也時(shi)有發生(sheng)。檢(jian)(jian)驗(yan)(yan)(yan)和(he)計算(suan)過程中粗(cu)心(xin)大意造成的檢(jian)(jian)驗(yan)(yan)(yan)失誤(wu)雖不(bu)常(chang)見,但(dan)一旦(dan)出現(xian)(xian)(xian)這種情況,將直接導致檢(jian)(jian)驗(yan)(yan)(yan)結果出現(xian)(xian)(xian)差錯(cuo)。

2.對(dui)(dui)可(ke)疑數據不(bu)敏感一(yi)般而言,每一(yi)種物(wu)質都有其(qi)自身(shen)特性,其(qi)檢(jian)(jian)測(ce)數據應(ying)在(zai)(zai)一(yi)定(ding)范圍,如,苯板(ban)的(de)導(dao)熱系數不(bu)可(ke)能(neng)為0,采用不(bu)同鋁合金建(jian)筑型材和(he)普通單層玻璃的(de)建(jian)筑外窗不(bu)可(ke)能(neng)達到保溫窗的(de)要求(qiu)等(deng)等(deng)。當檢(jian)(jian)驗人員(yuan)(yuan)或(huo)檢(jian)(jian)驗報告的(de)批(pi)準人員(yuan)(yuan)發現不(bu)符合一(yi)般規律的(de)可(ke)疑數據時(shi),應(ying)對(dui)(dui)可(ke)疑數據進行復核,并查清(qing)是(shi)否(fou)儀器設備(bei)有問題或(huo)檢(jian)(jian)驗人員(yuan)(yuan)操作失誤(wu)。能(neng)夠(gou)正確(que)判斷數據是(shi)否(fou)可(ke)疑,是(shi)建(jian)立在(zai)(zai)對(dui)(dui)被(bei)檢(jian)(jian)測(ce)產品的(de)理論和(he)檢(jian)(jian)測(ce)實踐有大量積累(lei)的(de)基(ji)礎上,這也是(shi)一(yi)個成熟的(de)檢(jian)(jian)驗人員(yuan)(yuan),檢(jian)(jian)驗報告審核、批(pi)準人員(yuan)(yuan)應(ying)有的(de)基(ji)本(ben)素質,沒有長期(qi)訓練,是(shi)不(bu)可(ke)能(neng)敏感地(di)察覺檢(jian)(jian)驗數據可(ke)疑的(de)。

3.臨界值(zhi)的(de)(de)處理(li)有(you)偏差(cha)在檢驗過(guo)程中,由于(yu)測(ce)量不(bu)確定度(du)的(de)(de)存(cun)在,可(ke)能(neng)會(hui)導致檢驗項目在臨界值(zhi)的(de)(de)判斷時(shi)有(you)偏差(cha)。例如:涂(tu)層(ceng)厚(hou)度(du),對于(yu)普(pu)通裝飾(shi)用(yong)鋁(lv)塑(su)板,由于(yu)涂(tu)層(ceng)厚(hou)度(du)相對較小,測(ce)量時(shi)“0”點的(de)(de)精確校(xiao)準(zhun)對于(yu)處在標(biao)準(zhun)規定的(de)(de)臨界狀態的(de)(de)產品(pin)(pin)而言顯得(de)尤為重要。如果(guo)(guo)用(yong)普(pu)通標(biao)準(zhun)基板進(jin)(jin)行調(diao)0,則可(ke)能(neng)出(chu)現(1~2)um的(de)(de)偏差(cha),這將(jiang)可(ke)能(neng)導致產品(pin)(pin)由“合格(ge)”滑向“不(bu)合格(ge)”邊緣(yuan)。對于(yu)普(pu)通裝飾(shi)用(yong)鋁(lv)塑(su)板,可(ke)以將(jiang)產品(pin)(pin)除去涂(tu)層(ceng),在其裸露的(de)(de)基材(cai)上進(jin)(jin)行調(diao)0,以保(bao)(bao)證結(jie)果(guo)(guo)的(de)(de)準(zhun)確客觀性。因(yin)此,對于(yu)有(you)臨界值(zhi)的(de)(de)檢驗結(jie)果(guo)(guo),應組織由不(bu)同檢驗人員或者儀(yi)器設(she)備進(jin)(jin)行多次的(de)(de)比對試驗,確保(bao)(bao)檢驗結(jie)果(guo)(guo)科學公(gong)正(zheng)。

4.對標(biao)(biao)準理(li)解有偏差檢(jian)驗(yan)(yan)是一(yi)項很嚴謹的(de)(de)(de)工作(zuo),個別(bie)檢(jian)驗(yan)(yan)人(ren)員對于標(biao)(biao)準的(de)(de)(de)理(li)解和使用不正確(que)也直接影響(xiang)了(le)檢(jian)驗(yan)(yan)結果的(de)(de)(de)準確(que)性。例如:氟碳涂(tu)(tu)層普通裝飾(shi)板檢(jian)測(ce),GB/T22412-2008規(gui)定,對于氟碳涂(tu)(tu)層普通裝飾(shi)用鋁塑板,其涂(tu)(tu)層性能(neng)的(de)(de)(de)檢(jian)測(ce)應(ying)按照(zhao)GB/T17748-2008進(jin)行。試驗(yan)(yan)中往往容(rong)易將“普通裝飾(shi)用”的(de)(de)(de)概念(nian)先入為主(zhu),而忽略了(le)“其為氟碳涂(tu)(tu)層”的(de)(de)(de)事實,導致采用檢(jian)驗(yan)(yan)標(biao)(biao)準不正確(que),最終導致檢(jian)驗(yan)(yan)結果失效。

5.新(xin)上(shang)崗(gang)(gang)檢(jian)驗(yan)(yan)(yan)員(yuan)(yuan)(yuan)(yuan)缺(que)乏(fa)(fa)有效監督(du)近(jin)年來,許多檢(jian)驗(yan)(yan)(yan)機(ji)構(gou)開展(zhan)了新(xin)一輪(lun)的(de)(de)(de)(de)擴(kuo)張,使(shi)得(de)(de)有經(jing)驗(yan)(yan)(yan)的(de)(de)(de)(de)檢(jian)驗(yan)(yan)(yan)人員(yuan)(yuan)(yuan)(yuan)嚴(yan)重缺(que)乏(fa)(fa),個別實驗(yan)(yan)(yan)室(shi)新(xin)進人員(yuan)(yuan)(yuan)(yuan)僅(jin)僅(jin)通(tong)過幾個月的(de)(de)(de)(de)培(pei)訓就上(shang)崗(gang)(gang)開展(zhan)檢(jian)驗(yan)(yan)(yan)工作,這類(lei)檢(jian)驗(yan)(yan)(yan)員(yuan)(yuan)(yuan)(yuan)對(dui)檢(jian)驗(yan)(yan)(yan)不太熟練,對(dui)異(yi)常數據缺(que)乏(fa)(fa)敏感,而(er)又對(dui)這類(lei)人員(yuan)(yuan)(yuan)(yuan)缺(que)乏(fa)(fa)有效的(de)(de)(de)(de)監督(du),使(shi)得(de)(de)他們出(chu)現錯誤的(de)(de)(de)(de)可能性遠遠超過成熟員(yuan)(yuan)(yuan)(yuan)工。因(yin)此,使(shi)用(yong)經(jing)驗(yan)(yan)(yan)不足而(er)又缺(que)少監督(du)的(de)(de)(de)(de)新(xin)上(shang)崗(gang)(gang)檢(jian)驗(yan)(yan)(yan)員(yuan)(yuan)(yuan)(yuan),潛(qian)在風險較大。因(yin)此,要(yao)按照實驗(yan)(yan)(yan)室(shi)資質(zhi)認(ren)定評審準則的(de)(de)(de)(de)要(yao)求,對(dui)使(shi)用(yong)在培(pei)人員(yuan)(yuan)(yuan)(yuan)應有足夠的(de)(de)(de)(de)監督(du)。實驗(yan)(yan)(yan)室(shi)在使(shi)用(yong)新(xin)上(shang)崗(gang)(gang)人員(yuan)(yuan)(yuan)(yuan)或轉崗(gang)(gang)人員(yuan)(yuan)(yuan)(yuan)時,除(chu)應考核上(shang)崗(gang)(gang)外,檢(jian)驗(yan)(yan)(yan)時實驗(yan)(yan)(yan)室(shi)監督(du)員(yuan)(yuan)(yuan)(yuan)應加強(qiang)監督(du),防止出(chu)現檢(jian)驗(yan)(yan)(yan)失誤。


04檢測原(yuan)始記錄不規范缺少可追(zhui)溯性(xing)

檢(jian)(jian)驗(yan)(yan)(yan)原(yuan)始記(ji)(ji)錄(lu)不規范(fan),雖然不會改變(bian)檢(jian)(jian)驗(yan)(yan)(yan)結(jie)果,但原(yuan)始記(ji)(ji)錄(lu)是(shi)實驗(yan)(yan)(yan)室(shi)檢(jian)(jian)驗(yan)(yan)(yan)過(guo)程的(de)證明材料,一旦實驗(yan)(yan)(yan)室(shi)與檢(jian)(jian)驗(yan)(yan)(yan)委托方(fang)或相(xiang)關(guan)第(di)三方(fang)發生糾紛時(shi),檢(jian)(jian)驗(yan)(yan)(yan)原(yuan)始記(ji)(ji)錄(lu)就(jiu)不能(neng)起到證據的(de)作用,將(jiang)實驗(yan)(yan)(yan)室(shi)置于危險境地。每(mei)個(ge)實驗(yan)(yan)(yan)室(shi)都會按實驗(yan)(yan)(yan)室(shi)資質認定(ding)(ding)評審準則的(de)規定(ding)(ding),制訂自己的(de)記(ji)(ji)錄(lu)管理規定(ding)(ding),但個(ge)別實驗(yan)(yan)(yan)室(shi)不能(neng)很好地執(zhi)行,表現在:

1.檢(jian)(jian)驗(yan)樣品(pin)的準(zhun)備(bei)(bei)(bei)、處置(zhi)(zhi)和制(zhi)備(bei)(bei)(bei)記(ji)(ji)(ji)錄(lu)(lu)不全(quan)檢(jian)(jian)驗(yan)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)最基本(ben)的要(yao)求是將觀(guan)(guan)察到(dao)(dao)的情況(kuang)、數據加(jia)以記(ji)(ji)(ji)錄(lu)(lu),這里指的觀(guan)(guan)察到(dao)(dao)的情況(kuang)包括(kuo)從樣品(pin)的準(zhun)備(bei)(bei)(bei)、處置(zhi)(zhi)和制(zhi)備(bei)(bei)(bei)開始(shi)到(dao)(dao)檢(jian)(jian)驗(yan)結束所觀(guan)(guan)察到(dao)(dao)的全(quan)過(guo)(guo)程(cheng)。實驗(yan)室(shi)往往對(dui)檢(jian)(jian)驗(yan)過(guo)(guo)程(cheng)觀(guan)(guan)察到(dao)(dao)的情況(kuang)記(ji)(ji)(ji)錄(lu)(lu)比較詳細(xi),但對(dui)樣品(pin)的準(zhun)備(bei)(bei)(bei)、處置(zhi)(zhi)和制(zhi)備(bei)(bei)(bei)過(guo)(guo)程(cheng),如樣品(pin)在恒溫(wen)恒濕間的等溫(wen)過(guo)(guo)程(cheng)、水(shui)泥(ni)的水(shui)養護過(guo)(guo)程(cheng)等過(guo)(guo)程(cheng)記(ji)(ji)(ji)錄(lu)(lu)不全(quan),甚至不予記(ji)(ji)(ji)錄(lu)(lu)。按照“實驗(yan)室(shi)記(ji)(ji)(ji)錄(lu)(lu)應及(ji)時(shi)(shi)、準(zhun)確(que)、完(wan)整(zheng)”的要(yao)求,檢(jian)(jian)驗(yan)樣品(pin)的準(zhun)備(bei)(bei)(bei)、處置(zhi)(zhi)和制(zhi)備(bei)(bei)(bei),也(ye)是檢(jian)(jian)驗(yan)的過(guo)(guo)程(cheng),也(ye)應及(ji)時(shi)(shi)、準(zhun)確(que)、完(wan)整(zheng)地加(jia)以記(ji)(ji)(ji)錄(lu)(lu),同時(shi)(shi),對(dui)檢(jian)(jian)驗(yan)員要(yao)加(jia)強教(jiao)育,要(yao)有完(wan)整(zheng)準(zhun)確(que)地記(ji)(ji)(ji)錄(lu)(lu)原(yuan)(yuan)始(shi)記(ji)(ji)(ji)錄(lu)(lu)的意(yi)識。

2.引(yin)用數(shu)據缺少(shao)可(ke)追溯性(xing)檢(jian)驗后(hou)(hou)的(de)計算過(guo)程中(zhong)(zhong)往往需要引(yin)用一些常(chang)數(shu)或(huo)系(xi)數(shu)。所有(you)引(yin)用數(shu)據都應有(you)出(chu)(chu)(chu)處,常(chang)數(shu)主(zhu)要是標(biao)(biao)(biao)(biao)(biao)準(zhun)中(zhong)(zhong)給(gei)出(chu)(chu)(chu),系(xi)數(shu)則是在(zai)檢(jian)驗前作出(chu)(chu)(chu)標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)后(hou)(hou)得(de)(de)出(chu)(chu)(chu),標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)不是做(zuo)出(chu)(chu)(chu)一次(ci)后(hou)(hou)永遠使用,而是應定期(qi)做(zuo)標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian),因此,在(zai)使用標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)時,應在(zai)原始(shi)(shi)記(ji)(ji)(ji)錄(lu)中(zhong)(zhong)附上(shang)本次(ci)檢(jian)測使用的(de)標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)或(huo)注(zhu)(zhu)明標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)編(bian)號。而有(you)的(de)實驗室在(zai)記(ji)(ji)(ji)錄(lu)原始(shi)(shi)記(ji)(ji)(ji)錄(lu)時,并不將(jiang)標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)附在(zai)原始(shi)(shi)記(ji)(ji)(ji)錄(lu)中(zhong)(zhong)或(huo)在(zai)原始(shi)(shi)記(ji)(ji)(ji)錄(lu)中(zhong)(zhong)注(zhu)(zhu)明出(chu)(chu)(chu)處,使其(qi)引(yin)用的(de)數(shu)據不具有(you)可(ke)追溯性(xing)。因此,檢(jian)驗人員在(zai)記(ji)(ji)(ji)錄(lu)檢(jian)驗原始(shi)(shi)記(ji)(ji)(ji)錄(lu)時,應將(jiang)引(yin)用的(de)標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)附在(zai)原始(shi)(shi)記(ji)(ji)(ji)錄(lu)中(zhong)(zhong),或(huo)將(jiang)引(yin)用的(de)標(biao)(biao)(biao)(biao)(biao)準(zhun)曲(qu)(qu)線(xian)的(de)編(bian)號在(zai)原始(shi)(shi)記(ji)(ji)(ji)錄(lu)中(zhong)(zhong)注(zhu)(zhu)明,使得(de)(de)原始(shi)(shi)記(ji)(ji)(ji)錄(lu)中(zhong)(zhong)的(de)引(yin)用數(shu)據具有(you)可(ke)追溯性(xing)。

3.從筆記(ji)(ji)(ji)本(ben)上(shang)轉抄(chao)檢(jian)(jian)驗記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)檢(jian)(jian)驗原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)是原(yuan)(yuan)始(shi)(shi)(shi)的(de)(de)(de)觀(guan)察記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu),應(ying)該在觀(guan)察時實時記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu),有些(xie)檢(jian)(jian)驗員(yuan)出于(yu)自己保留(liu)數(shu)據的(de)(de)(de)原(yuan)(yuan)因(yin),也有些(xie)檢(jian)(jian)驗員(yuan)出于(yu)保持(chi)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)干凈整潔的(de)(de)(de)原(yuan)(yuan)因(yin),養成了將原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)先記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)在筆記(ji)(ji)(ji)本(ben)上(shang),過后再轉抄(chao)到(dao)格(ge)式化的(de)(de)(de)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)上(shang)。因(yin)此(ci),實驗室有必(bi)要(yao)要(yao)求檢(jian)(jian)驗人員(yuan)將記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)及時記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)在受控的(de)(de)(de)格(ge)式化的(de)(de)(de)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)表(biao)式中,不(bu)得先記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)在筆記(ji)(ji)(ji)本(ben)上(shang)然(ran)后轉抄(chao)到(dao)格(ge)式化的(de)(de)(de)原(yuan)(yuan)始(shi)(shi)(shi)記(ji)(ji)(ji)錄(lu)(lu)(lu)(lu)(lu)上(shang)。


05檢驗報告的錯誤

檢(jian)(jian)驗(yan)報告是檢(jian)(jian)驗(yan)機構交給客戶的(de)最終(zhong)產品,因此檢(jian)(jian)驗(yan)報告質量也應(ying)該是實驗(yan)室重點(dian)關注的(de)內容之一。檢(jian)(jian)驗(yan)報告的(de)錯誤通常有以下(xia)兩種表(biao)現:

1.報(bao)告編制(zhi)錯(cuo)(cuo)誤(wu)(wu)檢(jian)(jian)(jian)驗(yan)報(bao)告編制(zhi)人(ren)員在編制(zhi)檢(jian)(jian)(jian)驗(yan)報(bao)告過(guo)程中(zhong),經常會因為疏(shu)忽出(chu)現輸入性錯(cuo)(cuo)誤(wu)(wu),如(ru):技術要求、實(shi)測數據、單(dan)項判(pan)定等(deng)文字或數字輸入錯(cuo)(cuo)誤(wu)(wu),造成誤(wu)(wu)判(pan);委托檢(jian)(jian)(jian)驗(yan)日(ri)期(qi)(qi)、樣品生產日(ri)期(qi)(qi)、檢(jian)(jian)(jian)驗(yan)日(ri)期(qi)(qi)等(deng)日(ri)期(qi)(qi)輸入錯(cuo)(cuo)誤(wu)(wu),造成時(shi)(shi)間(jian)邏(luo)輯(ji)(ji)上的問題。當前(qian),絕大多(duo)數實(shi)驗(yan)室都采用業務管(guan)理(li)網(wang)絡系統(tong)編制(zhi)檢(jian)(jian)(jian)驗(yan)報(bao)告,對(dui)(dui)于(yu)時(shi)(shi)間(jian)邏(luo)輯(ji)(ji)上的問題,可以(yi)通過(guo)在系統(tong)上進行時(shi)(shi)間(jian)關聯提醒設(she)置(zhi),對(dui)(dui)不符合邏(luo)輯(ji)(ji)的時(shi)(shi)間(jian)進行提醒,可有效防止時(shi)(shi)間(jian)邏(luo)輯(ji)(ji)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(jia)強報(bao)告編制(zhi)人(ren)員和審核、批準人(ren)員的責(ze)任心來解決。

2.非授(shou)權(quan)人(ren)簽(qian)(qian)(qian)(qian)字(zi)按照實(shi)驗室資質(zhi)認(ren)定(ding)的(de)要求,檢(jian)(jian)驗報(bao)告的(de)簽(qian)(qian)(qian)(qian)發(fa)應由授(shou)權(quan)簽(qian)(qian)(qian)(qian)字(zi)人(ren)簽(qian)(qian)(qian)(qian)發(fa)。授(shou)權(quan)簽(qian)(qian)(qian)(qian)字(zi)人(ren)應對檢(jian)(jian)測技術、結果評(ping)定(ding)、設備(bei)維護校準、記錄(lu)和報(bao)告核(he)查程序(xu)等非常熟悉,因此,授(shou)權(quan)簽(qian)(qian)(qian)(qian)字(zi)人(ren)的(de)授(shou)權(quan)簽(qian)(qian)(qian)(qian)字(zi)的(de)能(neng)力范(fan)(fan)圍(wei)(wei)、試(shi)驗地址(zhi)范(fan)(fan)圍(wei)(wei)是有限(xian)制的(de)。在實(shi)驗室運作(zuo)過程中,部分非授(shou)權(quan)簽(qian)(qian)(qian)(qian)字(zi)人(ren)簽(qian)(qian)(qian)(qian)發(fa)檢(jian)(jian)驗報(bao)告,或(huo)授(shou)權(quan)簽(qian)(qian)(qian)(qian)字(zi)人(ren)不了解自己的(de)授(shou)權(quan)簽(qian)(qian)(qian)(qian)字(zi)能(neng)力范(fan)(fan)圍(wei)(wei)或(huo)試(shi)驗地址(zhi)范(fan)(fan)圍(wei)(wei),超越(yue)授(shou)權(quan)范(fan)(fan)圍(wei)(wei)簽(qian)(qian)(qian)(qian)發(fa)檢(jian)(jian)驗報(bao)告,造成檢(jian)(jian)驗報(bao)告的(de)錯誤。這種超越(yue)能(neng)力范(fan)(fan)圍(wei)(wei)批準檢(jian)(jian)驗報(bao)告,違(wei)反(fan)了實(shi)驗室標識使用的(de)規(gui)定(ding),會使檢(jian)(jian)驗報(bao)告失去法律效力。


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