SN/T 3950-2014 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 3950-2014: Determination of oxidative onset temperature of hydrocarbons by differential. Scanning calorimetry Status: Valid
Basic dataStandard ID: SN/T 3950-2014 (SN/T3950-2014)Description (Translated English): Determination of oxidative onset temperature of hydrocarbons by differential. Scanning calorimetry Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: G17 Classification of International Standard: 17.200.10 Word Count Estimation: 7,784 Date of Issue: 4/9/2014 Date of Implementation: 11/1/2014 Quoted Standard: ASTM D3350; ASTM D3895; ASTM D4565; ASTM D5483; ASTM E473; ASTM E967 Regulation (derived from): State inspection certification (2014) 210 Issuing agency(ies): General Administration of Customs Summary: This standard specifies the method for determination of the linear heating rates under the conditions of use differential scanning calorimetry or pressure differential scanning calorimetry test the exothermic nature of the oxidation of hydrocarbons. This SN/T 3950-2014: Determination of oxidative onset temperature of hydrocarbons 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 oxidative onset temperature of hydrocarbons by differential. Scanning calorimetry People's Republic of China Entry-Exit Inspection and Quarantine Standards Hydrocarbon oxidation initiation temperature measurement Differential scanning calorimetry Issued on. 2014-04-09 2014-11-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard reference ASTME2009-08 "hydrocarbon oxidation starting temperature measuring differential scanning calorimetry (StandardTest MethodforOxidationOnsetTemperaturebyDifferentialScanningCalorimetry) ". This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard is drafted by. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Chen Xiang, Miao Wenbin, Chen Jun water, Zhao Yi Ching, Wanghai Ting, Tao Haihua, Jiang Wei, Zhu Hongkun, Li Wei. Hydrocarbon oxidation initiation temperature measurement Differential scanning calorimetry1 ScopeThis standard specifies the test hydrocarbon scanning calorimetry at a heating rate conditions linear differential scanning calorimetry or differential pressure Determination of the exothermic oxidation properties. This standard applies to the determination of hydrocarbon oxidation starting temperature.2 Normative referencesThe 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. ASTMD3350 Polyethylene Plastic Pipe and Fittings Materials Test methods ASTMD3895 differential scanning calorimetry determines the oxidation induction period polyolefin And test methods for insulating sleeve physical and environmental performance characteristics ASTMD4565 communication Wire and Cable Test methods ASTMD5483 pressure differential scanning calorimetry to determine the lubricating oil oxidation induction period ASTME473 thermal analysis and related terms and definitions ASTME967 differential scanning calorimetry and differential thermal analyzer calibration temperature3 Terms and DefinitionsASTME473 define the following terms and definitions apply to this document. 3.1 Oxidation (extrapolation) the initial temperature oxidation (extrapolated) onsettemperature; OOT Test method to determine the relative oxidative stability under heating rate by differential scanning calorimetry scan test temperature data recorded, View The initial oxidation observed is defined as the oxidation temperature (extrapolated) starting temperature.4 Summary of Test Method4.1 Test Method A --- differential scanning calorimetry, for the state of atmospheric oxygen. 4.2 Test Method B --- pressure differential scanning calorimetry, is used under high pressure, e.g., 3.5MPa oxygen conditions. 4.3 Test Method C --- differential scanning calorimetry, for ambient temperature and pressure. 4.4 Under conditions of constant heating rate of oxygen (or air) environment, heating the sample containing aluminum containers and empty aluminum containers or reference Aluminum crucibles. Exothermic oxidation reaction occurs on clear function until the heat flux curve monitor the temperature outside and the sample. By scanning the test temperature record Recorded data to determine the oxidation (extrapolation) the initial temperature, that is to determine the relative ability of a test method oxidized by the heating rate. Oxidation (extrapolation) from Temperature measurement start until the beginning of the exothermic reaction, and the extrapolated onset temperature was measured. 4.5 For some particularly stable substance under a predetermined condition OOT heating rate may be greater than 300 ℃, by increasing the oxygen Reducing the pressure of the purge gas OOT value. In contrast, reducing the partial pressure of oxygen (by using air) can delay the progress of the reaction, thereby increasing OOT added value. By suitable proportions of oxygen, such as nitrogen is suitable, you can increase the value of OOT (see definition and ASTMD3350 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 3950-2014_English be delivered?Answer: Upon your order, we will start to translate SN/T 3950-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 3950-2014_English with my colleagues?Answer: Yes. The purchased PDF of SN/T 3950-2014_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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