Cov ntaub ntawv siv rau Instrument Calibration

Reference Material For Instrument Calibration Featured Image

Lus piav qhia luv luv:

CRM yog siv rau kev tswj kom zoo thiab ntsuas qhov ntsuas ntsuas hauv kev tshuaj xyuas ferrosilicon.Nws kuj yog siv rau kev ntsuam xyuas thiab kev txheeb xyuas qhov tseeb ntawm txoj kev tshuaj ntsuam xyuas.CRM tuaj yeem siv rau kev hloov pauv ntawm tus nqi ntsuas.

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Certified Values

Table 1. Certified Values for YSBC 28604a-2013 (Mass Fraction %)

Tus lej	Cov ntsiab lus	C	S	Si	Mn	P	Fe	Al
YSBC 28604a-2013 ib	Certified Values	0.050 Nws	0.002 ib	69.96 ib	0.256 ib	0.023 ib	26.57 Nws	1.26
YSBC 28604a-2013 ib	Tsis paub meej	0.003 ib	0.001 ib	0.10	0.004 ib	0.001 ib	0.06 ib	0.02 ib
Tus lej	Cov ntsiab lus	Ca	Cu	Ni	Cr	Ti	Mg
YSBC 28604a-2013 ib	Certified Values	0.649 ib	0.013 ib	0.010 ib	0.049 ib	0.107 ib	0.019 ib
YSBC 28604a-2013 ib	Tsis paub meej	0.005 ib	0.001 ib	0.001 ib	0.002 ib	0.004 ib	0.001 ib

Txoj kev tsom xam

Table 2. Cov txheej txheem tsom xam

Kev sib xyaw	Txoj kev
C	Infrared absorption txoj kev Gas-volumetric method
S	Infrared absorption txoj kev combustion iodometric txoj kev
Si	Perchloric acid dehydration gravimetric txoj kev Silicon poov tshuaj fluoride titrimetric txoj kev
Mn	Periodate photometric method ICP-AES
P	Bismuth phosphomolybdate xiav spectrophotometric txoj kev Antimony phosphomolybdate xiav spectrophotometric txoj kev ICP-AES
Fe	Potassium dichromate titration method
Al	EDTA txoj kev tritrimetric chrome azurol S photometric txoj kev ICP-AES
Ca	ICP-AES AAS
Cu	BCO spectrophotometric method ICP-AES AAS
Ni	Dimetylgyoxime spectrophotometric method ICP-AES
Cr	Diphenyl carbon acyl dihydrazide photometry ICP-AES
Ti	Diantipyryl methane photometric txoj kev ICP-AES
Mg	ICP-AES AAS

Homogeneity Test thiab Stability Inspection

Daim ntawv pov thawj tas sij hawm: Daim ntawv pov thawj ntawm CRM no siv tau txog thaum lub Kaum Ib Hlis 1, 2023.

Table 3. Cov txheej txheem rau kev kuaj homogeneity

Kev sib xyaw	Txoj kev tsom xam	Yam tsawg kawg nkaus tus qauv (g)
Si	Silicon poov tshuaj fluoride titrimetric txoj kev	0.1
C, S	Infrared absorption txoj kev	0.2
Mn, P, Al, Ca, Cu, Ni, Cr, Ti, Mg	ICP-AES	0.2
Fe	Potassium dichromate titration method	0.2