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Determination of the glass transition temperature of raw rubber. Differential scanning calorimetry (DSC)
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Basic data
| Standard ID | SN/T 3120-2012 (SN/T3120-2012) |
| Description (Translated English) | Determination of the glass transition temperature of raw rubber. Differential scanning calorimetry (DSC) |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | G34 |
| Classification of International Standard | 83.040.10 |
| Word Count Estimation | 8,875 |
| Quoted Standard | GB/T 2941; GB/T 14838-2009; GB/T 19466.1-2004 |
| Adopted Standard | ISO 22768-2006, IDT |
| Regulation (derived from) | National Quality Inspection (2012) 237; industry standard filing Notice 2012 No. 9 (Total No. 153); |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the differential scanning calorimetry raw rubber glass transition temperature approach. This standard applies to differential scanning calorimetry raw rubber glass transition temperature. |
SN/T 3120-2012: Determination of the glass transition temperature of raw rubber. Differential scanning calorimetry (DSC)
---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.
Determination of the glass transition temperature of raw rubber.Differential scanning calorimetry (DSC)
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Measuring temperature of raw rubber glass transition
Differential scanning calorimetry
Differentialscanningcalorimetry (DSC)
(ISO 22768.2006, IDT)
Issued on. 2012-05-07
2012-11-16 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.
This standard is identical with ISO 22768.2006 "Determination of raw rubber glass transition temperature differential scanning calorimetry."
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Guangdong CIQ.
The main drafters of this standard. Chen Wenjie, Chen Gufeng, Linhong Xiong, Lee Jun, Fang Yongkang, Liu Sheng, Bei Yang, Bo Ping, Zhu Hui red,
Di Cuiping, Zheng Jianguo.
Measuring temperature of raw rubber glass transition
Differential scanning calorimetry
Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues.
Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies the method of differential scanning calorimetry. Raw rubber glass transition temperature.
This standard applies to differential scanning calorimetry. Raw rubber glass transition temperature.
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 2941 rubber physical test method for preparing and conditioning General Procedure (GB/T 2941-2006, ISO 23529.2004,
IDT)
GB/T 14838-2009 Rubber and rubber products - Determination of precision for test method standards (ISO /T R9272.2005, IDT)
GB/T 19466.1-2004 plastic differential scanning calorimetry (DSC) - Part 1. General (ISO 11357-1.1997, IDT)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
The glass transition glasstransition
Amorphous polymers or semi-crystalline polymer amorphous regions from rubbery to hard or viscous flow state, and a relatively brittle glassy
Reversible change.
3.2
The glass transition temperature glasstransitiontemperature
Tg
The approximate midpoint of the temperature of the glass transition temperature range.
NOTE. In this standard, the glass transition temperature is defined as the inflection point at a heating rate of 20 ℃/min measured DSC curve (see 12.3).
Principle 4
By differential scanning calorimetry. Rubber under an inert atmosphere defined by their specific heat capacity changes with temperature, the resulting curve is determined by the glass
Glass transition temperature.
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