Crm Database Suppliers – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science
Crm Database Suppliers – 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:
With this motto in mind, we've got develop into amongst one of the most technologically innovative, cost-efficient, and price-competitive manufacturers for Crm Database Suppliers – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Algeria, Singapore, Serbia, Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact me. We are looking forward to forming successful business relationship with new clients around the world.
By Gill from New Zealand - 2017.03.07 13:42
The after-sale warranty service is timely and thoughtful, encounter problems can be resolved very quickly, we feel reliable and secure.
By Salome from Ghana - 2017.09.30 16:36