China Types Of Anthracite Coal – Certified Reference Material – Shandong Institute of Metallurgical Science
China Types Of Anthracite Coal – Certified Reference Material – Shandong Institute of Metallurgical Science Detail:
Table 1. Certified Values for ZBK 306 (Mass Fraction %)
|
Number |
Elements |
TFe |
FeO |
SiO2 |
Al2O3 |
CaO |
MgO |
|
ZBK 306 |
Certified Values |
65.66 |
0.54 |
1.92 |
1.64 |
0.056 |
0.102 |
|
Uncertainty |
0.17 |
0.06 |
0.04 |
0.04 |
0.006 |
0.008 |
|
|
Number |
Elements |
S |
P |
Mn |
Ti |
K2O |
Na2O |
|
ZBK 306 |
Certified Values |
0.022 |
0.060 |
0.135 |
0.048 |
0.018 |
0.007 |
|
Uncertainty |
0.001 |
0.002 |
0.003 |
0.002 |
0.002 |
0.002 |
Table 2. Analysis methods
|
Composition |
Method |
|
TFe |
Titanium(III) chloride reduction potassium dichromate titration method |
|
FeO |
Potassium dichromate titration methodThe potentiometric titrimetric method |
|
SiO2 |
Perchloric acid dehydration gravimetric methodThe silicomolybdic blue spectrophotometric methodICP-AES |
|
Al2O3 |
Complexometric titration methodThe chrome azurol S photometric methodICP-AES |
|
CaO |
ICP-AESAAS |
|
MgO |
ICP-AESAAS |
|
S |
Barium sulfate gravimetric methodThe eombustion iodometric method for the determination of sulfur content |
|
P |
Bismuth phosphomolybdate blue spectrophotometric methodICP-AES |
|
Mn |
Potassium periodate spectrophotometric methodICP-AESAAS |
|
Ti |
Diantipyryl methane photometric methodICP-AES |
|
K2O |
ICP-AES AAS |
|
Na2O |
ICP-AES AAS |
Expiration of certification: The certification of this CRM is valid until December 1, 2028.
Table 3. Methods for homogeneity testing
|
Composition |
Analysis methods |
Minimum sample (g) |
|
TFe |
Titanium(III) chloride reduction potassium dichromate titration method |
0.2 |
|
FeO |
Potassium dichromate titration method |
0.2 |
|
SiO2, Al2O3, CaO, MgO |
ICP-AES |
0.1 |
|
Mn, Ti |
ICP-AES |
0.2 |
|
P, K2O, Na2O |
ICP-AES |
0.5 |
|
S |
The eombustion iodometric method for the determination of sulfur content |
0.5 |
The certified reference material is packed in glass bottles with plastic covers. The net weight is 70 g each. It is suggested to keep dryness when stored. The certified reference material should be dried at 105℃ for 1 hour before use, then it should be taken out and cooled to room temperature.
Product detail pictures:
Related Product Guide:
To consistently enhance the management method by virtue of the rule of "sincerely, fantastic religion and top quality are the base of business development", we extensively absorb the essence of associated goods internationally, and constantly acquire new merchandise to satisfy the needs of shoppers for China Types Of Anthracite Coal – Certified Reference Material – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Anguilla, Rwanda, Swiss, We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.
By Julia from Hungary - 2017.10.25 15:53
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
By Anna from Morocco - 2018.11.11 19:52
