GB/T 2406.2-2009 PDF EnglishUS$125.00 · In stock · Download in 9 seconds
GB/T 2406.2-2009: Plastics -- Determination of burning behaviour by oxygen index -- Part 2: Ambient-temperature test Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 2406.2-2009: Plastics -- Determination of burning behaviour by oxygen index -- Part 2: Ambient-temperature test---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT2406.2-2009 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.080.01 G 31 GB/T 2406.2-2009 / ISO 4589-2.1996 Plastics - Determination of burning behaviour by oxygen index - Part 2.Ambient-temperature test (ISO 4589-2.1996, IDT) Issued on. JUNE 15, 2009 Implemented on. FEBRUARY 1, 2010 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the PRC; Standardization Administration of the PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 6 3 Terms and definitions... 7 4 Principle... 7 5 Apparatus... 7 6 Calibration of equipment... 12 7 Preparation of test specimens... 13 8 Procedure for determination of oxygen index... 16 9 Calculations and expression of results... 21 10 Procedure C - Comparison with a specified minimum value of the oxygen index (short procedure)... 23 11 Test report... 24 Annex A (Normative) Calibration of equipment... 25 Annex B (Normative) Calculation of oxygen concentration... 27 Annex C (Informative) Test results sheet... 28 Annex D (Informative) Results obtained by inter-laboratory trials on type VI specimens... 31 Annex E (Informative) Precision data obtained by 1978~1980 inter-laboratories tests... 33 Annex NA (Informative) Precision of inter-laboratory results of ISO and ASTM in 1999... 34 Bibliography... 36ForewordGB/T 2406 Plastics - Determination of burning behaviour by oxygen index consists of three parts. - Part 1.Guidance; - Part 2.Ambient-temperature test; - Part 3.High-temperature test. This Part is the 2nd Part of GB/T 2406.It identically adopts the International Standard ISO 4589-2.1996 Plastics - Determination of burning behaviour by oxygen index - Part 2.Ambient-temperature test (English version), as well as the Amendment 1 to ISO 4589-2.1996 issued by ISO on January 15, 2005.This Part is an identical translation version of ISO 4589-2.1996 and the Amendment 1 to ISO 4589-2.1996 issued by ISO on January 15, 2005.They are identical in technical content. For easy use, this Part made the following editorial modifications to ISO 4589-2.1996. - modified “this Part of ISO 4589” to “this Part of GB/T 2406” or “this Part”; - deleted the Foreword and Contents of ISO 4589-2.1996; - added the Foreword and Table of Contents in GB/T 2406; - directly used Chinese national standards to replace corresponding International references in ISO 4589-2.1996 which have been identically adopted as the Chinese national standards; other International references which are not identically adopted as Chinese national standards are directly cited in this Part; - deleted serial numbers in NOTES of ISO 4589; used the notes by adding the serial number required by national standards; - modified the contents of the ISO Amendment for clause 9 Precision as the informative Annex NA. Annex A, Annex B of this Part are normative; Annex C, Annex D, Annex E, Annex NA are informative. This Part was proposed by China Petroleum and Chemical Industry Association. This Part shall be under the jurisdiction of Sub-committee on General Methods and Products for Plastic Resins, National Technical Committee on Plastics of Standardization Administration of China (SAC/TC 15/SC 4). Responsible drafting organization of this Part. National Synthetic Resin Quality Supervision and Inspection Center. Participating drafting organizations of this Part. Beijing Yanshan Petrochemical Resin Institute; National Quality Supervision and Testing Centre of Plastic Product (Fuzhou); National Chemical Building Materials Testing Center (Materials Testing Department); Nanjing Jiangning Analytical Instrument Co., Ltd.; Shanghai Fire Research Institute, Ministry of Public Security; Guangzhou Kingfa Sci. & Tech. Co., Ltd.; Shandong Dawn Group Longkou Dawn Engineering Plastics Co., Ltd. Main drafters of this Part. Song Guirong, Wang Jiandong, Chen Hongyuan, Li Jianjun, Zhang Zhengmin, He Peng, Yang Zonglin, Wang Fuhai, Zhang Chengjie. Plastics - Determination of burning behaviour by oxygen index - Part 2.Ambient-temperature test1 ScopeThis Part of GB/T 2406 specifies methods for determining the minimum concentration of oxygen, in admixture with nitrogen, that will support combustion of test specimens under specified test conditions. The results are defined as oxygen index values.2 Normative referencesThe following documents contain the provisions which, through reference in this Part of GB/T 2406, constitute the provisions of this Part. For dated references, subsequent amendments (excluding corrections) or revisions do not apply to this Part. However, the parties who enter into agreement based on this Part are encouraged to investigate whether the latest versions of these documents are applicable.3 Terms and definitionsFor the purposes of this Part of GB/T 2406, the following definition applies. The minimum concentration of oxygen, by volume percentage, in a mixture of oxygen and nitrogen introduced at 23 °C ± 2 °C that will just support combustion of a material.4 PrincipleA test specimen is supported vertically in a mixture of oxygen and nitrogen flowing upwards through a transparent chimney.5 ApparatusIt is suitable for supporting a specimen vertically in the centre of the chimney. For self-supporting materials, the specimen shall be held by a clamp which is at least 15 mm away from the nearest point at which the specimen may burn before the extent-of-burning criterion is exceeded.6 Calibration of equipmentFor compliance with this method, calibrate the equipment periodically in accordance with the instructions given in annex A so that the maximum interval between recalibration and use complies with the periods stated in table 1.7 Preparation of test specimensUsing, if applicable, procedures that comply with the appropriate material specification (see note 1) or methods (see note 2) for specimen preparation, mould or cut test specimens that satisfy the dimensions specified for the most appropriate specimen form given in table 2.8 Procedure for determination of oxygen indexNOTE For comparison with a specified minimum value of the oxygen index, without determining the actual oxygen index of the material under test, a shortened procedure shall be used. Select one of two alternative ignition procedures which are dependent upon the specimen form as follows.9 Calculations and expression of resultsThe value and sign of k are dependent upon the pattern of the responses of specimens tested in accordance with 8.6, and may be determined from table 4 as follows. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 2406.2-2009 be delivered?Answer: The full copy PDF of English version of GB/T 2406.2-2009 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 2406.2-2009_English with my colleagues?Answer: Yes. 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