Wholesale Srm Nist Manufacturer – Reference Material For Coal Testing – Shandong Institute of Metallurgical Science
Wholesale Srm Nist Manufacturer – 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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Every single member from our large efficiency revenue team values customers' wants and company communication for Wholesale Srm Nist Manufacturer – Reference Material For Coal Testing – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Mexico, Serbia, Oman, At Present, our merchandise have been exported to more than sixty countries and different regions, such as Southeast Asia, America, Africa, Eastern Europe, Russia, Canada etc. We sincerely hope to establish wide contact with all potential customers both in China and the rest part of the world.
By John biddlestone from Spain - 2017.12.02 14:11
It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
By Florence from Luxemburg - 2018.11.28 16:25