Wholesale 431 Stainless Steel Manufacturers – Certified Reference Material – Shandong Institute of Metallurgical Science
Wholesale 431 Stainless Steel Manufacturers – 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:
We stay with our company spirit of "Quality, Performance, Innovation and Integrity". We goal to create more value for our clients with our abundant resources, advanced machinery, experienced workers and superb solutions for Wholesale 431 Stainless Steel Manufacturers – Certified Reference Material – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Sevilla, Chile, London, We have top engineers in these industries and an efficient team in the research. What is more, now we have our own archives mouths and markets in China at low cost. Therefore, we can meet different inquiries from different clients. Remember to find our website to check more information from our merchandise.
By Doreen from Kenya - 2018.07.27 12:26
The product classification is very detailed that can be very accurate to meet our demand, a professional wholesaler.
By Rigoberto Boler from luzern - 2017.09.28 18:29
