China Materials Reference Supplier – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science
China Materials Reference Supplier – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science Detail:
The CRM is used for the quality control and calibration of analytical instruments in analysis of Coal. It is also used for the evaluation and verification of accuracy of the analytical methods. The CRM can be used for the transfer of measured value.
Table 1. Certified Values for GBW (E) 110109 (k=2)
| Number | Elements | P/% | As*/μg/g | F/μg/g | Cl*/% | Hg*/μg/g |
| GBW(E)110109 | Certified Values | 0.0080 | 22 | 158 | 0.051 | 0.03 |
| Uncertainty | 0.0008 | 3 | 11 | 0.005 | 0.01 |
Note 1: * Indicates that it is not within the recommended scope for production proficiency of CNAS
Table 2. Analysis methods
|
Composition |
Method |
|
P |
Reduced molybdophosphate photometric method ICP-AES |
|
As |
HG-ICP-AES HG-AFS |
|
F |
Fluorine ion-selective electrode analysis Ion chromatography |
|
Cl |
The potentiometric titrimetric method Ion chromatography |
|
Hg |
Cold atomic absorption spectrometric method AFS Solid sampling and direct mercury analysis method |
Expiration of certification: The certification of this CRM is valid until June 1, 2024.
Table 3. Methods for homogeneity testing
|
Composition |
Analysis methods |
Minimum sample (g) |
|
P |
ICP-AES |
1 |
|
As |
HG-ICP-AES |
1 |
|
F |
Fluorine ion-selective electrode analysis |
0.5 |
|
Cl |
The potentiometric titrimetric method |
0.5 |
|
Hg |
AFS |
0.5 |
The certified reference material is packed in brown glass bottles with plastic covers. The net weight is 50 g each. It is suggested to keep dryness when stored.
Product detail pictures:
Related Product Guide:
Having a sound small business credit score, outstanding after-sales services and modern manufacturing facilities, we've got earned an fantastic reputation among our buyers across the globe for China Materials Reference Supplier – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: European, Durban, Belgium, Our tenet is "integrity first, quality best". Now we have confidence in providing you with excellent service and ideal merchandise. We sincerely hope we can establish win-win business cooperation with you in the future!
By Pandora from Lyon - 2018.07.27 12:26
Good quality, reasonable prices, rich variety and perfect after-sales service, it's nice!
By Emma from UK - 2018.12.05 13:53
