Ihe nrụtụ aka nke mba (NCRM)

National Certified Reference Material (NCRM) Featured Image

Nkọwa dị mkpirikpi:

Akwụkwọ ntụaka nke Benzoic Acid (Calorimetric Standard) Enwere ike iji CRM maka nha uru calorific na ike eletrik, coal, ụlọ ọrụ ndị agha, nyocha sayensị na mpaghara ndị ọzọ.

Koodu:GBW (E) 136695

Nọmba ogbe:2021-01

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Nkọwa ngwaahịa

Mkpado ngwaahịa

Ntinye ngwaahịa

A na-eji CRM maka nkwenye / nhazi nke ikuku oxygen bombu calorimeter.A na-ejikwa ya maka nyocha na nkwenye nke izi ezi nke ụzọ nyocha.Enwere ike iji CRM maka nha uru calorific na ike eletrik, coal, ụlọ ọrụ ndị agha, nyocha sayensị na mpaghara ndị ọzọ.

Nkwadebe nke ihe

A na-asachapụ benzoic acid site na distillation na ịdị ọcha bụ 99.96%.A na-eme ya ka ọ bụrụ mbadamba ihe dị ka 0.5g ma tinye ya na karama rọba dị ọcha.

Ụkpụrụ akwadoro

Tebụl 1. Ụkpụrụ akwadoro maka Benzoic Acid

Nọmba	Aha	Uru enwetara* (J/g)	Ejighi n'aka (J/g) (k=2)
GBW (E) 136695	Benzoic acid	26456	25

Ụzọ nyocha

A na-eji calorimeter bọmbụ eme nha ndị a.

Nnwale Homogeneity na nyocha kwụsie ike

A na-ahọrọ karama iri abụọ na enweghị usoro iji chọpụta usoro nha.A na-ahọrọ ụdị nyocha site na karama ọ bụla, na usoro a bụ calorimeter bombu.A na-eji ule dị iche iche (F) nyochaa ịdị n'otu nke CRM, mgbe Fα, sample bụ otu.

Mmebi nke asambodo: Asambodo nke CRM a dị irè ruo February 1, 2031.

Mbukota na Nchekwa

A na-akwakọba ihe ntụnyere akwụkwọ ikike na karama rọba nwere mkpuchi rọba.Ibu net dị ihe dịka 35g kwa karama ọ bụla.A na-atụ aro idobe nkụ mgbe echekwara ya.