GB/T 14768-2015Test method at 45°and assessment of carpets burning behaviour (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 14768-1993 "carpet 45 ° combustion performance test methods and assessment", compared with the GB/T 14768-1993, The main technical content changes outside except editorial changes as follows:

--- Test results "damage length arithmetic mean" to "the maximum measured value";

--- Modify the test requirements for materials section;

--- Modify some of the terms and definitions. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee carpet (SAC/TC150) centralized. This standard is drafted by: Wuxi Diamond Carpet Manufacturing Co., carpet State Quality Supervision and Inspection Center, Weihai City Shanhua carpet Group Co., Ltd., Weihai carpet Limited, Jiang Su Kaili Carpet Co., Ltd. Participated in the drafting of this standard. Zhengzhou, China and Germany Yongjia Carpet Co., Ltd. Binzhou Oriental rugs, carpets Dongsheng Group Limited Division Xingyue Zhejiang Orient Carpet Industry Co., Ltd., the Canada-US carpet Ltd. Dalian, Chongqing Helen Carpet Co., Ltd., China Arts and Crafts Association of Professional Committee of the carpet. The main drafters of this standard. even Jing Bao, Li Zengbin, Ma Zhijun, Zhang Bo, Jiang Xi students, Baitian Wen, Han Hongliang, Hou Jingshan, Dou Xiufeng, Sunsheng Jiang, Zhou Xilun, Li Xiaowen, Ningshu Ying, Xie Ting, He Yumei. This standard replaces the standards previously issued as follows:

--- GB/T 14768-1993. Carpet combustion performance test methods and evaluation of 45 °

1 Scope

GB/T 14768-2015 is the Chinese national standard on test method at 45°and assessment of carpets burning behaviour, in the field of textile and leather technology. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 11 September 2015 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 April 2016. Classification: ICS 59.080.60, CCS W56. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This standard specifies the carpet in the laboratory under controlled conditions to 45 ° tilted surface of the carpet sample from the flame flammability Test Method and Evaluation. This standard applies to all kinds of carpet fiber composition and organizational structure. This standard does not apply to other test locations rugs and carpets combustion performance under actual fire conditions risk assessment.

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 3291.3 textile material properties and test - Part 3. General

3 Terms and Definitions

GB/T 3291.3 and define the following terms and definitions apply to this document.

3.1 Ignition time ignitiontime Regardless of whether the material burning material in a predetermined exposure time of ignition source.

3.2 Continued burning time afterflametime Under test conditions, remove the ignition source material after sustained flaming combustion time.

3.3 Smoldering time afterglowtime Under test conditions, when the flaming termination, or this is by flameless combustion, after removal of the source of fire, the material continued flameless combustion time.

3.4 Damage length damagedlength Under the test conditions specified in the predetermined direction of the material damage to the maximum length of the part. Principle

4 Under specified test conditions of 45 ° tilted surface of the carpet sample ignition certain amount of time, measuring the length of the sample destroyed, Continued burning and smoldering time to time.

5 Equipment and Materials

5.1 45 ° burning tester. burning tester combustion casing with stainless steel material, the box should be fitted with glass observation windows, fitted tank top There exhaust port, the lower side of the opening with a row of ventilation holes in the box with the sample holding frame means and the horizontal position 45 °, by the timing chamber, Ignition devices and safety control system, etc., shown in Figure 1.