Certified Reference Materials Manufacturer – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science
Certified Reference Materials Manufacturer – 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:
"Sincerity, Innovation, Rigorousness, and Efficiency" is definitely the persistent conception of our corporation to the long-term to establish alongside one another with customers for mutual reciprocity and mutual profit for Certified Reference Materials Manufacturer – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Hamburg, Turin, Sierra Leone, Our items have national accreditation requirements for qualified, high quality products, affordable value, was welcomed by people today all over the world. Our goods will continue to enhance within the order and look forward to cooperation with you, Should any of these products be of interest to you, please letus know. We are going to be content to offer you a quotation up on receipt of your detailed needs.
By Beulah from Naples - 2017.06.25 12:48
In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
By Ida from Kenya - 2018.12.25 12:43