|
US$229.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 4704-2016: Kinetic parameters using isothermal methods--Differential scanning calorimetry method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4704-2016 | English | 229 |
Add to Cart
|
3 days [Need to translate]
|
Kinetic parameters using isothermal methods--Differential scanning calorimetry method
| Valid |
SN/T 4704-2016
|
PDF similar to SN/T 4704-2016
Basic data | Standard ID | SN/T 4704-2016 (SN/T4704-2016) | | Description (Translated English) | Kinetic parameters using isothermal methods--Differential scanning calorimetry method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | G04 | | Word Count Estimation | 10,112 | | Date of Issue | 2016-12-12 | | Date of Implementation | 2017-07-01 | | Regulation (derived from) | State-Quality-Inspection-Accredidation (2016) No.590 | | Issuing agency(ies) | General Administration of Customs | SN/T 4704-2016: Kinetic parameters using isothermal methods--Differential scanning calorimetry method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Kinetic parameters using isothermal methods--Differential scanning calorimetry method
China's entry-exit inspection and quarantine industry standards
Kinetic parameters isothermal detection differential scanning calorimetry
Published on.2016-12-12
2017-07-01 Implementation
China
The State Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard refers to ASTM E2070-13 "Standard Test Method for Kinetic Parameters Detection Using Differential Scanning Calorimetry Isothermal Method"
Technical content of Methods).
This standard is proposed and managed by the National Certification and Accreditation Regulatory Commission.
This standard was drafted by. Shanghai Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China and Shanghai Municipal Bureau of Occupational Disease Prevention and Control.
The main drafters of this standard. Yu Wenbin, Qingjiang, Hu Xunjun, Tao Haihua, Yao Lifang, Li Wei, Zhao Yuqing, Jiang Wei, Zhu Hongkun.
Kinetic parameters isothermal detection differential scanning calorimetry
1 Scope
This standard specifies the differential scanning calorimetry method for isothermal detection of kinetic parameters.
This standard applies to the use of differential scanning calorimetry isothermal detection of chemical kinetic parameters. This method is only suitable for exothermic reactions.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
ASTME 537 Method for Testing the Thermal Stability of Chemicals by Differential Scanning Calorimetry
Temperature Calibration Test Method for ASTME967 Differential Scanning Calorimeter and Differential Thermal Analyzer
ASTME968 Differential Scanning Calorimeter for Thermal Flow Calibration
ASTME1860 Thermal Analyzer Calibration Test Method for Running Time
ASTME1970 Statistical Analysis of Thermal Analysis Data
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Activation energy activationenergy
There is a transitional state from the original reaction system to the intermediate stage of the product. This transition state is different from the energy of the original system.
3.2
Pre-exponential factor
The constant that is determined by the reaction and is independent of the reaction temperature and the concentration of the material in the system.
3.3
Reaction level reactionorder
The relationship between the reaction rate and the power presented by the concentration.
4 Principle
Differential scanning calorimetry is the measurement of heat flux under isothermal test conditions and can be used to determine the total heat of the reaction, as well as the reaction rate.
It is a function of time and temperature. During the exothermic reaction, the sample is kept in a differential scanning calorimeter at a constant temperature, and the heat release caused by the reaction is
The degree is proportional to the reaction rate, and the total heat of the reaction is obtained by integrating the heat flux as a function of time. Based on heat flow and total heat of reaction,
Using the accelerated reaction (Sestak Berggren or Avrami) data, n-level reaction data, or atypical response data to derive the activation energy,
Prefactors and reaction progression kinetic parameters.
5 Reagents and materials
All reagents used were of analytical grade unless otherwise stated.
|