Top 10 Crm Software Factory – Certified Reference Material – Shandong Institute of Metallurgical Science
Top 10 Crm Software Factory – 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.
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Our pursuit and corporation aim should be to "Always satisfy our consumer requirements". We carry on to build and style and design remarkable quality items for both our outdated and new clients and reach a win-win prospect for our clients at the same time as us for Top 10 Crm Software Factory – Certified Reference Material – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Afghanistan, Lisbon, Tanzania, Our company insists on the purpose of "takes service priority for standard, quality guarantee for the brand, do business in good faith, to offer skilled, rapid, accurate and timely service for you". We welcome old and new customers to negotiate with us. We are going to serve you with all sincerity!
By Elsa from Egypt - 2017.09.16 13:44
With a positive attitude of "regard the market, regard the custom, regard the science", the company works actively to do research and development. Hope we have a future business relationships and achieving mutual success.
By Ivy from Barbados - 2018.02.04 14:13
