Cov ntaub ntawv siv rau Coal Test

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CRM yog siv rau kev tswj xyuas kom zoo thiab ntsuas cov cuab yeej ntsuas ntsuas hauv kev txheeb xyuas ntawm Iron Ore.CRM tuaj yeem siv rau kev hloov pauv ntawm tus nqi ntsuas.

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Certified Values

Table 1. Certified Values for YSBC 28752-95 (Mass Fraction %)

Tus lej	Cov ntsiab lus	TFe	SiO₂	Al₂O₃	CaO	MgO	K₂O
YSBC 28752-95 : kuv	Certified Values	64.66 ib	4.34 ib	1.80 ib	0.011 ib	0.027 ib	0.082 ib
YSBC 28752-95 : kuv	Tsis paub meej	0.15	0.05 Nws	0.03 ib	0.003 ib	0.002 ib	0.003 ib
Tus lej	Cov ntsiab lus	Na₂O	TiO₂	Mn	S	P
YSBC 28752-95 : kuv	Certified Values	0.01 ib	0.23	0.007 ib	0.009 1	0.020 ib
YSBC 28752-95 : kuv	Tsis paub meej	0.01 ib	0.02 ib	0.001 ib	0.0003	0.002 ib

Txoj kev tsom xam

Table 2. Cov txheej txheem tsom xam

Kev sib xyaw	Txoj kev
TFe	Titanium (III) chloride txo cov poov tshuaj dichromate titration txoj kev
SiO₂	Perchloric acid dehydration gravimetric txoj kevTxoj kev silicomolybdic xiav spectrophotometric txoj kevICP-AES
Al₂O₃	chrome azurol S photometric txoj kevICP-AES
CaO	ICP-AESAAS
MgO	ICP-AESAAS
K₂O	ICP-AESAAS
Na₂O	ICP-AESAAS
TiO₂	Diantipyrylmethane spectrophotometric txoj kevICP-AES
Mn	Potassium periodate spectrophotometric methodICP-AESAAS
S	High zaus combustion infrared absorption txoj kevBarium sulfate gravimetric txoj kevcombustion iodometric txoj kev
P	Bismuth phosphomolybdenum xiav photometryICP-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 1, 2025.

Table 3. Cov txheej txheem rau kev kuaj homogeneity

Kev sib xyaw	Txoj kev tsom xam	Yam tsawg kawg nkaus tus qauv (g)
TFe	Titanium (III) chloride txo cov poov tshuaj dichromate titration txoj kev	0.2
SiO₂	Txoj kev silicomolybdic xiav spectrophotometric txoj kev	0.2
Al₂O₃CaO, MgO, TiO₂,Mn, P	ICP-AES	0.2
K₂O, Na₂O	AAS	0.2
S	Infrared absorption txoj kev	0.2