Top 10 Crm Software Manufacturer – Certified Reference Material of Benzoic Acid – Shandong Institute of Metallurgical Science
Top 10 Crm Software Manufacturer – Certified Reference Material of Benzoic Acid – Shandong Institute of Metallurgical Science Detail:
The CRM is used for the quality control and calibration of analytical instruments in analysis of Iron Concentrate. 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 Benzoic Acid
| Number | Name | Certified Value* (J/g) | Uncertainty (J/g) (k=2) |
| GBW（E）136695 | Benzoic Acid | 26456 | 25 |
Note: The certified value of benzoic acid reference material is corrected by acid, it is the gross calorific values at constant volume.
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.
National Steel Materials Testing Centre
Technology Center of Benxi Iron & Steel Group Co., Ltd
Yantai Branch,52 Institure of China Industries Group
Wuhan Iron and Steel Group Technology Center Inspection
Baoshan Iron & Steel Co., Ltd. Special Steel Branch
School of Chemistry and Chemical Engineering, Shandong University
Shandong Metallurgical Research Institute Test Center
Shandong Metallurgical Product Quality Supervision and Inspection Station
Jinan Iron and Steel Group Corporation
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By Henry stokeld from Mumbai - 2018.12.05 13:53
The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
By Roberta from Pakistan - 2018.07.26 16:51
