National Certified Reference Material (NCRM)

Kufotokozera Kwachidule:

Certified Reference Material of Benzoic Acid (Calorimetric Standard) CRM ingagwiritsidwe ntchito poyeza mtengo wa calorific mu mphamvu yamagetsi, malasha, makampani ankhondo, kafukufuku wa sayansi ndi zina.

Kodi:GBW (E) 136695

Nambala ya Gulu:2021-01

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Kuyambitsa mankhwala

CRM imagwiritsidwa ntchito potsimikizira / kusanja kwa calorimeter ya bomba la okosijeni.Amagwiritsidwanso ntchito poyesa ndi kutsimikizira kulondola kwa njira zowunikira.CRM ingagwiritsidwe ntchito poyezera mtengo wamagetsi mu mphamvu yamagetsi, malasha, makampani ankhondo, kafukufuku wasayansi ndi zina.

Kukonzekera Zinthu

Benzoic acid imatsukidwa ndi distillation ndipo chiyero ndi 99.96%.Amapangidwa kukhala mapiritsi a 0.5g ndikulongedza m'mabotolo apulasitiki aukhondo.

Makhalidwe Ovomerezeka

Table 1. Makhalidwe Ovomerezeka a Benzoic Acid

Nambala	Dzina	Mtengo Wotsimikizika* (J/g)	Kusatsimikizika (J/g) (k=2)
GBW (E) 136695	Benzoic Acid	26456	25

Njira Zowunika

Bomba la calorimeter limagwiritsidwa ntchito popanga miyeso iyi.

Kuyesa kwa Homogeneity ndi Kuwunika Kukhazikika

Mabotolo 20 amasankhidwa mwachisawawa kuti adziwe momwe amayezera.Chitsanzo chowunikira chimasankhidwa mu botolo lililonse, ndipo njirayo ndi bomba la calorimeter.Kuyesa kwa Variance (F) kumagwiritsidwa ntchito kuyesa kufanana kwa CRM, pamene Fα, zitsanzo ndi homogeneous.

Kutha kwa certification: Chitsimikizo cha CRM iyi ndichabwino mpaka February 1, 2031.

Packing Ndi Kusunga

Zolemba zotsimikizika zimayikidwa m'mabotolo apulasitiki okhala ndi zovundikira zapulasitiki.Kulemera kwake ndi pafupifupi 35g botolo lililonse.Zimalangizidwa kuti zisunge zowuma zikasungidwa.