National Certified Reference Material (NCRM)

imikhiqizo

I-National Certified Reference Material (NCRM)

Incazelo emfushane:

I-Certified Reference Material ye-Benzoic Acid (I-Calorimetric Standard) I-CRM ingasetshenziselwa ukulinganisa inani le-calorific emandleni kagesi, amalahle, imboni yezempi, ucwaningo lwesayensi neminye imikhakha.


  • Ikhodi:I-GBW (E) 136695
  • Inombolo yeqoqo:2021-01
  • Imininingwane Yomkhiqizo

    Omaka bomkhiqizo

    Isingeniso somkhiqizo

    I-CRM isetshenziselwa ukuqinisekiswa/ukulinganisa kwekhalorimitha yebhomu le-oxygen.Iphinde isetshenziselwe ukuhlola nokuqinisekisa ukunemba kwezindlela zokuhlaziya.I-CRM ingasetshenziselwa ukulinganisa inani le-calorific emandleni kagesi, amalahle, imboni yezempi, ucwaningo lwesayensi neminye imikhakha.

    GBW(E)136695 (1)
    GBW(E)136695 (2)

    Ukulungiswa Kwempahla

    I-Benzoic acid ihlanzwa nge-distillation futhi ubumsulwa bungama-99.96%.Yenziwe ibe amaphilisi angaba ngu-0.5g futhi ifakwe emabhodleleni epulasitiki ahlanzekile.

    Amanani Aqinisekisiwe

    Ithebula 1. Amanani Aqinisekisiwe E-Benzoic Acid

    Inombolo

    Igama

    Inani Eliqinisekisiwe* (J/g)

    Ukungaqiniseki (J/g) (k=2)

    I-GBW (E) 136695

    I-Benzoic Acid

    26456

    25

    Izindlela Zokuhlaziya

    I-calorimeter yebhomu isetshenziselwa ukwenza lezi zilinganiso.

    Ukuhlolwa Kwe-Homogeneity Nokuhlola Ukuzinza

    Amabhodlela angamashumi amabili akhethwa ngokungahleliwe ukuze kunqunywe i-oda lokulinganisa.Isifanekiso sokuhlaziya sikhethwa ebhodleleni ngalinye, futhi indlela yi-calorimeter yebhomu.Ukuhlolwa kwe-variance (F) kusetshenziselwa ukuhlola ukufana kwe-CRM, lapho i-Fα, amasampula afanayo.

    Ukuphelelwa yisikhathi kwesitifiketi: Isitifiketi sale CRM sisebenza kuze kube umhla ka-Februwari 1, 2031.

    Ukupakisha Nokugcina

    Izinto eziyisethenjwa eziqinisekisiwe zipakishwe emabhodleleni epulasitiki anezembozo zepulasitiki.Isisindo senetha singama-35g ibhodlela ngalinye.Kuphakanyiswa ukugcina ukoma lapho ugcinwe.

    Ilabhorethri

    Igama: Shandong Institute of Metallurgical Science Co., Ltd.

    Ikheli : 66 Jiefang East Road, Jinan, Shandong, China;

    Iwebhusayithi:www.cncrms.com

    I-Emai:cassyb@126.com

    New standard coal1

    Kugunyazwe ngu: Gao Hongji

    Umqondisi Welabhorethri

    Idethi: Februwari 1, 2021


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