Dsc Reference Material Manufacturer – National Certified Reference Material (NCRM) – Shandong Institute of Metallurgical Science
Dsc Reference Material 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:
We now have a skilled, performance team to supply good quality services for our consumer. We often follow the tenet of customer-oriented, details-focused for Dsc Reference Material Manufacturer – National Certified Reference Material (NCRM) – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Mozambique, Greek, Toronto, All our staffs believe that: Quality builds today and service creates future. We know that good quality and the best service are the only way for us to achieve our customers and to achieve ourselves too. We welcome customers all over the word to contact us for future business relationships. Our products are the best. Once Selected, Perfect Forever!
By Dana from Oman - 2017.12.19 11:10
The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
By Fanny from Oman - 2017.08.18 11:04