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Cov ntaub ntawv pov thawj siv

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Lus piav qhia luv luv:

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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Chemical Analysis (1)
Chemical Analysis (2)

Certified Values

Table 1. Certified Values ​​for ZBK 306 (Mass Fraction %)

Tus lej

Cov ntsiab lus

TFe

FeO

SiO2

Al2O3

CaO

MgO

SIB 306

Certified Values

65.66 ib

0.54 ib

1.92 ib

1.64 ib

0.056 ib

0.102 ib

Tsis paub meej

0.17 ib

0.06 ib

0.04 ib

0.04 ib

0.006 ib

0.008 ib

Tus lej

Cov ntsiab lus

S

P

Mn

Ti

K2O

Na2O

SIB 306

Certified Values

0.022 ib

0.060 ib

0.135 Nws

0.048 ib

0.018 ib

0.007 ib

Tsis paub meej

0.001 ib

0.002 ib

0.003 ib

0.002 ib

0.002 ib

0.002 ib

Txoj kev tsom xam

Table 2. Txoj kev tsom xam

Kev sib xyaw

Txoj kev

TFe

 Titanium (III) chloride txo cov poov tshuaj dichromate titration txoj kev

FeO

 Potassium dichromate titration methodTxoj kev potentiometric titrimetric txoj kev

SiO2

 Perchloric acid dehydration gravimetric txoj kevTxoj kev silicomolybdic xiav spectrophotometric txoj kevICP-AES

Al2O3

 Complexometric titration methodchrome azurol S photometric txoj kevICP-AES

CaO

 ICP-AESAAS

MgO

 ICP-AESAAS

S

 Barium sulfate gravimetric txoj kevTxoj kev eombustion iodometric rau kev txiav txim siab ntawm cov ntsiab lus sulfur

P

 Bismuth phosphomolybdate xiav spectrophotometric txoj kevICP-AES

Mn

 Potassium periodate spectrophotometric methodICP-AESAAS

Ti

 Diantipyryl methane photometric txoj kevICP-AES

K2O

 ICP-AESAAS

Na2O

 ICP-AESAAS

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 Ob Hlis 1, 2028.

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

FeO

 Potassium dichromate titration method

0.2

SiO2, Al2O3, CaO, MgO

ICP-AES

0.1

Mn, Ti

ICP-AES

0.2

P, K2Aw, Na2O

ICP-AES

0.5

S

Txoj kev eombustion iodometric rau kev txiav txim siab ntawm cov ntsiab lus sulfur

0.5

Packing thiab Cia

Cov ntaub ntawv pov thawj siv tau ntim rau hauv iav fwj nrog cov yas npog.Qhov hnyav yog 70 g txhua.Nws raug nquahu kom ua kom qhuav thaum khaws cia.Cov ntaub ntawv pov thawj yuav tsum tau qhuav ntawm 105 ℃ rau 1 teev ua ntej siv, ces nws yuav tsum tau muab tshem tawm thiab txias rau chav tsev kub.

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