China Tungsten Steel Suppliers – Reference Material For Chemical Testing – Shandong Institute of Metallurgical Science

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China Tungsten Steel Suppliers – Reference Material For Chemical Testing – Shandong Institute of Metallurgical Science

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  • China Tungsten Steel Suppliers – Reference Material For Chemical Testing – Shandong Institute of Metallurgical Science

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Fast and superior quotations, informed advisers to help you choose the correct merchandise that suits all your requirements, a short generation time, responsible quality control and different services for paying and shipping affairs for Types Of Stainless Steel Grades , Than Anthracite , Crm Certified Reference Material , Adhering to your small business principle of mutual positive aspects, we have now won superior popularity among our customers because of our best solutions, excellent products and competitive selling prices. We warmly welcome clients from your home and overseas to cooperate with us for common achievement.
China Tungsten Steel Suppliers – Reference Material For Chemical Testing – Shandong Institute of Metallurgical Science Detail:

Table 1. Certified Values for GSB 03-2027-2006 (Mass Fraction %)

Number

Elements

TFe*

FeO

SiO2

Al2O3*

CaO

MgO

S

GSB

03-2027-2006

Certified Values

72.01

28.63

0.158

0.095

0.025

0.042

0.0028

Uncertainty

0.09

0.10

0.004

0.005

0.003

0.002

0.0004

Number

Elements

P*

Mn

Ti*

K2O

Na2O*

Cu

Ni

GSB

03-2027-2006

Certified Values

0.0013

0.043

0.028

0.0068

0.0008

0.0007

0.0022

Uncertainty

0.0003

0.002

0.003

0.0005

0.0002

0.0002

0.0002

Number

Elements

Co

As*

Pb

Zn

Cr

 

 

GSB

03-2027-2006

Certified Values

0.0008

0.00012

0.0002

0.0026

0.0062

 

 

Uncertainty

0.0001

0.00003

0.0001

0.0003

0.0004

 

  

Note : * Indicates that it is not within the recommended scope for production proficiency of RMP

Table 2. Analysis Methods

Composition

Method

TFe

Titrimetric method after tin(Ⅱ) chloride reduction

Titanium(Ⅲ) chloride reduce potassium dichromate titration method

FeO

Potassium dichromate titration method

Potentiometric titration method

SiO2

The silicomolybdic blue spectrophotometric method

ICP-AES

CaO

AAS

ICP-AES

MgO

AAS

ICP-AES

Al2O3

The chrome azurol S photometric method

ICP-AES

Ti

ICP-AES

Diantipyrylmethane spectrophotometric method

Mn

ICP-AES

AAS 

Potassium periodate spectrophotometric method

P

N-butyl alcohol-chloroform extraction molybdenum blue spectrophotome-tric method

The butyl acetate extraction photometric method

ICP-AES

S

High frequency combustion infrared absorption method

Combustion iodometric method

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

Expiration of certification: The certification of this CRM is valid until January 31, 2023.

Table 3. Methods for homogeneity testing

Composition

Analysis methods

Minimum sample (g)

TFe

Titanium(Ⅲ) chloride reduce potassium dichromate titration

0.2

FeO

Potassium dichromate titration

0.2

S

High frequency combustion infrared absorption method

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

National Steel Materials Testing Centre

Technology Center of Benxi Iron & Steel Group Co., Ltd

Yantai Branch,52 Institure of China Industries Group

Wuhan Iron and Steel Group Technology Center Inspection

Baoshan Iron & Steel Co., Ltd. Special Steel Branch

School of Chemistry and Chemical Engineering, Shandong University

Shandong Metallurgical Research Institute Test Center

Shandong Metallurgical Product Quality Supervision and Inspection Station

Jinan Iron and Steel Group Corporation

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