China Construction Materials Reference Book Supplier – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science
China Construction Materials Reference Book 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:
Our products are broadly regarded and reliable by end users and can meet up with constantly transforming financial and social requires of China Construction Materials Reference Book Supplier – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: London, South Korea, India, Adhering to the principle of "Enterprising and Truth-Seeking, Preciseness and Unity", with technology as the core, our company continues to innovate, dedicated to providing you with the highest cost-effective solutions and meticulous after-sales service. We firmly believe that: we're outstanding as we have been specialized.
By Anna from moldova - 2017.02.14 13:19
This supplier stick to the principle of "Quality first, Honesty as base", it is absolutely to be trust.
By Sarah from Chile - 2018.02.21 12:14