China List Of Certified Reference Materials Supplier – Certified Reference Material – Shandong Institute of Metallurgical Science
China List Of Certified Reference Materials Supplier – 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:
abide by the contract", conforms towards the market requirement, joins during the market competition by its good quality likewise as provides additional comprehensive and great services for customers to let them turn out to be big winner. The pursue of your enterprise, is the clients' fulfillment for China List Of Certified Reference Materials Supplier – Certified Reference Material – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Slovak Republic, New York, Cyprus, We have a good reputation for stable quality products, well received by customers at home and abroad. Our company would be guided by the idea of "Standing in Domestic Markets, Walking into International Markets". We sincerely hope that we could do business with customers both at home and abroad. We expect sincere cooperation and common development!
By Honorio from South Africa - 2017.06.29 18:55
The supplier abide the theory of "quality the basic, trust the first and management the advanced" so that they can ensure a reliable product quality and stable customers.
By Dora from Algeria - 2017.05.02 11:33