Reference Materials Meaning Manufacturer – National Certified Reference Material (NCRM) – Shandong Institute of Metallurgical Science
Reference Materials Meaning Manufacturer – National Certified Reference Material (NCRM) – Shandong Institute of Metallurgical Science Detail:
The CRM is used for the verification/calibration of oxygen bomb calorimeter. It is also used for the evaluation and verification of accuracy of the analytical methods. The CRM can be used for calorific value measurement in electric power, coal, military industry, scientific research and other fields.
Benzoic acid is purified by distillation and the purity is 99.96%. It is made into about 0.5g tablets and packed in clean plastic bottles.
Table 1. Certified Values for Benzoic Acid
Number |
Name |
Certified Value* (J/g) |
Uncertainty (J/g) (k=2) |
GBW(E)136695 |
Benzoic Acid |
26456 |
25 |
The bomb calorimeter is used to make these measurements.
Twenty bottles are randomly selected to determine the measurement order. An analysis specimen is selected from each bottle, and the method is the bomb calorimeter. Variance (F) test is used to evaluate the uniformity of the CRM, when the F<Fα, sample are homogeneous.
Expiration of certification: The certification of this CRM is valid until February 1, 2031.
The certified reference material is packed in plastic bottles with plastic covers. The net weight is about 35g each bottle. It is suggested to keep dryness when stored.
Product detail pictures:
Related Product Guide:
As for aggressive rates, we believe that you will be searching far and wide for anything that can beat us. We can easily state with absolute certainty that for such good quality at such charges we are the lowest around for Reference Materials Meaning Manufacturer – National Certified Reference Material (NCRM) – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Suriname, South Korea, Lisbon, We have advanced production technology, and pursuit innovative in products. At the same time, the good service has enhanced the good reputation. We believe that as long as you understand our product, you must be willing to become partners with us. Looking forward to your inquiry.
By Elma from Tanzania - 2018.11.28 16:25
As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
By Mag from Belize - 2018.10.01 14:14