Cov ntaub ntawv siv rau kev kuaj tshuaj

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CRM yog siv rau kev tswj kom zoo thiab ntsuas cov cuab yeej tshuaj ntsuam xyuas hauv kev tsom xam ntawm Iron Concentrate.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 GSB 03-2027-2006 (Mass Fraction %)

Tus lej	Cov ntsiab lus	TFe*	FeO	SiO₂	Al₂O₃*	CaO	MgO	S
GSB 03-2027-2006	Certified Values	72.01 Nws	28.63 Nws	0.158 ib	0.095 ib	0.025 ib	0.042 ib	0.0028 ib
GSB 03-2027-2006	Tsis paub meej	0.09 ib	0.10	0.004 ib	0.005 ib	0.003 ib	0.002 ib	0.0004
Tus lej	Cov ntsiab lus	P*	Mn	Ti*	K₂O	Na₂O*	Cu	Ni
GSB 03-2027-2006	Certified Values	0.0013	0.043 ib	0.028 ib	0.006 8	0.0008	0.0007	0.0022 ib
GSB 03-2027-2006	Tsis paub meej	0.0003	0.002 ib	0.003 ib	0.0005	0.0002	0.0002	0.0002
Tus lej	Cov ntsiab lus	Co	Raws li *	Pb	Zn	Cr
GSB 03-2027-2006	Certified Values	0.0008	0.00012	0.0002	0.0026 ib	0.0062 ib
GSB 03-2027-2006	Tsis paub meej	0.0001	0.00003	0.0001	0.0003	0.0004

Nco tseg: * Qhia tias nws tsis nyob hauv lubrpom zoo stiv raupkev tsim tawmproficiency ntawm RMP

Txoj kev tsom xam

Table 2. Cov txheej txheem tsom xam

Kev sib xyaw	Txoj kev
TFe	Titrimetric txoj kev tom qab tin (Ⅱ) txo cov tshuaj chloride Titanium (Ⅲ) chloride txo pOtassium dichromate titrationtxoj kev
FeO	Potassium dichromate titrationtxoj kev Potentiometric titration method
SiO₂	Txoj kev silicomolybdic xiav spectrophotometric txoj kev ICP-AES
CaO	AAS ICP-AES
MgO	AAS ICP-AES
Al₂O₃	chrome azurol S photometric txoj kev ICP-AES
Ti	ICP-AES Diantipyrylmethane txoj kev spectrophotometric
Mn	ICP-AES AAS Potassiumperiodatetxoj kev spectrophotometric
P	N-butyl cawv-chloroform extraction molybdenum xiav spectrophotome-tric txoj kev Butyl acetate extraction photometric txoj kev ICP-AES
S	Ntau zauscombustioninfrared absorption txoj kev combustioniod uaometrictxoj kev
K₂O	ICP-AES AAS
Na₂O	ICP-AES AAS
Cu	ICP-AES AAS GFAAS
Ni	AAS GFAAS ICP-AES
Co	AAS GFAAS ICP-AES
As	GFAAS HG-ICP-AES ICP-AES
Pb	GFAAS AAS ICP-AES ICP-MS
Zn	ICP-AES AAS
Cr	AAS GFAAS ICP-AES

Homogeneity Test thiab Stability Inspection

Daim ntawv pov thawj tas sij hawm: Daim ntawv pov thawj ntawm CRM no siv tau txog thaum Lub Ib Hlis 31, 2023.

Table 3. Cov txheej txheem rau kev kuaj homogeneity

Kev sib xyaw	Txoj kev tsom xam	Myam tsawg kawg nkaus (g)
TFe	Titanium (Ⅲ) chloride txo pOtassium dichromate titration	0.2
FeO	Potassium dichromate titration	0.2
S	High zaus combustion infrared absorption txoj kev	0.5
Al₂O₃	ICP-AES	0.1
K₂O, Na₂O,P	ICP-AES	0.5
CaO, MgO,Mn, Ti, Cu, Zn, Cr, Pb, As, Co, Ni,SiO₂	ICP-AES	0.2