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SN/T 2942-2011: Assessment of thermal oxidation stability of plastics. Differential scanning calorimetry
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| SN/T 2942-2011 | English | 239 |
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Assessment of thermal oxidation stability of plastics. Differential scanning calorimetry
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Basic data
| Standard ID | SN/T 2942-2011 (SN/T2942-2011) |
| Description (Translated English) | Assessment of thermal oxidation stability of plastics. Differential scanning calorimetry |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | G31 |
| Classification of International Standard | 83.040.01 |
| Word Count Estimation | 9,959 |
| Date of Issue | 2011-05-31 |
| Date of Implementation | 2011-12-01 |
| Quoted Standard | GB/T 1845.2; GB/T 2546.2; GB/T 2918; GB/T 9352; GB/T 17037.3; GB/T 19466.1; ISO 8986-2 |
| Adopted Standard | ISO 11357-6-2008, NEQ |
| Regulation (derived from) | National-Quality-Inspection-accreditation (2011) 291 |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the differential scanning calorimetry plastic material oxidation induction time and oxidation induction temperature of Methods. This standard applies to the evaluation of the thermal stability of plastic raw materials modification. |
SN/T 2942-2011: Assessment of thermal oxidation stability of plastics. Differential scanning calorimetry
---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.
Assessment of thermal oxidation stability of plastics.Differential scanning calorimetry
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Evaluation of the thermal stability of plastic raw materials
Differential scanning calorimetry
[ISO 11357-6.2008, Determinationofoxidationinductiontime
(IsothermalOIT) andoxidationtemperature (dynamicOIT), NEQ]
Issued on. 2011-05-31
2011-12-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The reference standard ISO 11357-6.2008 "Plastics differential scanning calorimetry (DSC) - Part 6. oxidation induction time (isothermal
OIT) and oxidation induction temperature (dynamic OIT) determination of "preparation, and ISO 11357-6.2008 is equivalent to the degree of non-conformity.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shandong Entry-American TA Company China Technology Center.
The main drafters of this standard. Lin Yu Fei, Wang Yan, Fei, Sun Jian, Cui crane, Liu Xiaomin, Su Jie, Liu with, Duheng Qing.
Evaluation of the thermal stability of plastic raw materials
Differential scanning calorimetry
1 Scope
This standard specifies a differential scanning calorimetry measurement of plastic raw materials oxidation induction time and oxidation induction temperature Methods.
This standard applies to the evaluation of the thermal stability of plastic raw unprocessed modified.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1845.2 plastic polyethylene (PE) molding and extrusion materials - Part 2. Sample preparation and determination of properties (ISO 1872-2.
1997, MOD)
Molding and extrusion materials - Part 2 GB/T 2546.2 plastic polypropylene (PP). sample preparation and determination of properties (ISO 1873-2.
1997, MOD)
GB/T 2918 plastic sample conditioning and testing of the standard environment
GB/T 9352 plastic thermoplastic material compression molded sample (ISO 293.2004, IDT)
GB/T 17037.3 prepared plastic injection molded test specimens of thermoplastic materials - Part 3. Small square test pieces
GB/T 19466.1 plastic differential scanning calorimetry (DSC) - Part 1. General (ISO 11357-1.1997, IDT)
ISO 8986-2 Plastics polybutylene (PB) molding and extrusion materials - Part 2. Preparation of test specimens and performance
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Thermal stability thermalstability
Under the action of heat resistant material performance degradation.
Standard, using oxidation induction time (isothermal OIT) or oxidation induction temperature (dynamic OIT) was evaluated.
3.2
Oxidation induction time oxidationinductiontime
Thermostat OIT isothermalOIT
A material thermal stability relative measure. Under atmospheric pressure, oxygen or air atmosphere at a predetermined temperature by calorimetry material out
Now exothermic oxidation time interval required to obtain.
Note. in minutes (min) indicated.
3.3
Oxidative induction temperature oxidationinductiontemperature
Dynamic OIT dynamicOIT
A material thermal stability relative measure. At atmospheric pressure, oxygen or air atmosphere at a predetermined rate of temperature rise, measured by calorimetry
Given material occurs when the temperature of the exothermic oxidation is obtained.
Note. in Celsius (℃) represented.
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