SN/T 2427-2010 English PDF

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SN/T 2427-2010: Determination of melting temperature and melting temperature range of chemicals for import and export by differential scanning calorimetry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2427-2010	209	Add to Cart	3 days	Determination of melting temperature and melting temperature range of chemicals for import and export by differential scanning calorimetry	Valid

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Basic data

Standard ID: SN/T 2427-2010 (SN/T2427-2010)
Description (Translated English): Determination of melting temperature and melting temperature range of chemicals for import and export by differential scanning calorimetry
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: G04
Classification of International Standard: 71.100.01
Word Count Estimation: 8,856
Date of Issue: 2010-03-02
Date of Implementation: 2010-09-16
Quoted Standard: GB/T 6425; GB/T 19466.3; JJG 936
Regulation (derived from): National Quality Inspection (2010) 98; industry standard filing Notice 2010 No. 5 (No. 125 overall)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the differential scanning calorimetry melting temperature and the import and export of chemicals melting temperature range approach. This standard applies to solid-liquid phase transition has obvious thermal effect of the chemical melting temperature and melting temperature range of measurement. This standard does not apply to the decomposition temperature lower than the melting temperature lower than the melting temperature of the material and explosives.

SN/T 2427-2010: Determination of melting temperature and melting temperature range of chemicals for import and export by 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.
Determination of melting temperature and melting temperature range of chemicals for import and export by differential scanning calorimetry Exit inspection and quarantine industry standard book People's Republic of China Import and export of chemicals and melting temperature Determination of melting temperature range of differential scanning calorimetry Issued on. 2010-03-02 2010-09-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

Appendix A of this standard is an informative annex. 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, Sun Yat-sen. The main drafters of this standard. Chen Gufeng, Fang Yongkang, Lee Jun, Chen Qiang, Lin Hongxiong, Zhang Yi, Di Cuiping, Zheng Jianguo. This standard is the first release of the entry-exit inspection and quarantine industry standards. Import and export of chemicals and melting temperature Determination of melting temperature range of differential scanning calorimetry Warning --- When using this standard may involve hazardous materials, operations and equipment. This standard does not cover all associated with use Solutions to security problems. The standard measure of the responsibility of the user prior to use to ensure the safety of the appropriate provisions of these rules and to determine System suitability chapter.

1 Scope

This standard specifies a differential scanning calorimetry melting temperature determination of the import and export of chemicals and melting temperature range of the method. This standard applies to solid-liquid phase transition temperature and melting chemicals measured melting temperature range has obvious thermal effects. This standard does not apply to the decomposition temperature below the melting temperature of the material and explosives.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6425 Thermal Analysis term GB/T 19466.3 plastic differential scanning calorimetry - Part 3. Determination of melting and crystallization temperature and enthalpy (GB/T 19466.3-2004, ISO 11357-3.1999, IDT) JJG936 a differential scanning calorimeter

3 Terms and Definitions

GB/T 6425 and established the following terms and definitions apply to this standard. 3.1 Under the program temperature and a certain atmosphere, measuring the sample and reference material lost heat flow rate or heating power (difference) versus temperature or time Technology. 3.2 By a differential scanning calorimeter measured sample and reference was lost heat flow rate or heating power (difference) versus temperature or time curve Icon. Ordinate of the graph for the heat flow rate (heatflowrate) or said heat flow (heatflow), the unit is mW (mJ · s-1); abscissa Labeled as temperature or time, unit ℃ or t. General customary provisions, upward curve is positive, indicating that the exothermic effect; down is negative, showing an endothermic effect. 3.3 In the procedure specified in this standard, a set of characteristic temperature determined by the measured DSC curve (usually extrapolated melting temperature or the starting point Melting peak temperature), the temperature of the material used to represent the transition from a solid state to a different viscosity liquid state. ......

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