China 416 Stainless Steel Supplier – Reference Material For Coal Testing – Shandong Institute of Metallurgical Science
China 416 Stainless Steel Supplier – Reference Material For Coal Testing – Shandong Institute of Metallurgical Science Detail:
Table 1. Certified Values for YSBC 28752-95 (Mass Fraction %)
|
Number |
Elements |
TFe |
SiO2 |
Al2O3 |
CaO |
MgO |
K2O |
|
YSBC 28752-95
|
Certified Values |
64.66 |
4.34 |
1.80 |
0.011 |
0.027 |
0.082 |
|
Uncertainty |
0.15 |
0.05 |
0.03 |
0.003 |
0.002 |
0.003 |
|
|
Number |
Elements |
Na2O |
TiO2 |
Mn |
S |
P |
|
|
YSBC 28752-95 |
Certified Values |
0.01 |
0.23 |
0.007 |
0.0091 |
0.020 |
|
|
Uncertainty |
0.01 |
0.02 |
0.001 |
0.0003 |
0.002 |
Table 2. Analysis Methods
|
Composition |
Method |
|
TFe |
Titanium(III) chloride reduction potassium dichromate titration method |
|
SiO2 |
Perchloric acid dehydration gravimetric methodThe silicomolybdic blue spectrophotometric methodICP-AES |
|
Al2O3 |
The chrome azurol S photometric method ICP-AES |
|
CaO |
ICP-AESAAS |
|
MgO |
ICP-AES AAS |
|
K2O |
ICP-AES AAS |
|
Na2O |
ICP-AES AAS |
|
TiO2 |
Diantipyrylmethane spectrophotometric method ICP-AES |
|
Mn |
Potassium periodate spectrophotometric method ICP-AESAAS |
|
S |
High frequency combustion infrared absorption methodBarium sulfate gravimetric methodCombustion iodometric method |
|
P |
Bismuth phosphomolybdenum blue photometryICP-AES |
Expiration of certification: The certification of this CRM is valid until January 1, 2025.
Table 3. Methods for homogeneity testing
|
Composition |
Analysis methods |
Minimum sample (g) |
|
TFe |
Titanium(III) chloride reduction potassium dichromate titration method |
0.2 |
|
SiO2 |
The silicomolybdic blue spectrophotometric method |
0.2 |
|
Al2O3、CaO、MgO、TiO2、Mn、P |
ICP-AES |
0.2 |
|
K2O、Na2O |
AAS |
0.2 |
|
S |
The Infrared absorption method |
0.2 |
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We aim to find out high quality disfigurement in the generation and provide the most effective services to domestic and abroad clients wholeheartedly for China 416 Stainless Steel Supplier – Reference Material For Coal Testing – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Belize, Malta, Salt Lake City, In order to carry out our goal of "customer first and mutual benefit" in the cooperation, we establish a professional engineering team and a sales team to supply the best service to satisfy our customers' requirements. Welcome you to cooperate with us and join us. We are your best choice.
By Elaine from Belarus - 2017.05.02 11:33
This company has the idea of "better quality, lower processing costs, prices are more reasonable", so they have competitive product quality and price, that's the main reason we chose to cooperate.
By Edward from Canada - 2017.05.02 11:33
