GB/T 2408-2008: Plastics -- Determination of burning characteristics -- Horizontal and vertical test [Including 2018XG1]

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Scope

This Standard specifies a small-scale laboratory screening procedure for comparing
the relative burning behaviour of vertically or horizontally oriented specimens made
from plastic and other non-metallic materials, exposed to a small-flame ignition source
of 50 W nominal power.
This Standard specifies the determination of linear burning rate and the
afterflame/afterglow times, as well as the damaged length of specimens.
This Standard applies to solid and cellular materials that have an apparent density of
not less than 250 kg/m3, determined in accordance with GB/T 6343. It does not apply
to materials that shrink away from the applied flame without igniting; ISO 9773 should
be used for thin flexible materials.
This Standard provides classification systems (see 8.4 and 9.4), which may be used
for quality assurance, or the pre-selection of component materials of products. The
methods may be used for the pre-selection of a material, providing positive results are
obtained at a thickness equal to the smallest thickness used in the application.
NOTE: Test results are influenced by material components, e.g. pigments, fillers and
fire-retardants, and properties such as the direction of anisotropy and the molecular
mass.

Basic Data

Standard ID	GB/T 2408-2008 (GB/T2408-2008)
Description (Translated English)	Plastics -- Determination of burning characteristics -- Horizontal and vertical test [Including 2018XG1]
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G31
Classification of International Standard	83.080.01
Word Count Estimation	19,132
Date of Issue	2008-08-04
Date of Implementation	2009-04-01
Older Standard (superseded by this standard)	GB/T 2408-1996
Quoted Standard	GB/T 1844.1-2008; GB/T 2918-1998; GB/T 5169.5-1997; GB/T 5169.17-2002; GB/T 5471-2008; GB/T 6343-1995; GB/T 6379.2-2004; GB/T 9352-2008; GB/T 12006.1-1989; GB/T 17037.1-1997; GB/T 17037.3-2003; GB/T 17037.4-2003; ISO 294-2-1996; ISO 294-5-2001; ISO 9773-1998; ISO 10093-1998; ISO/IEC GUIDE 51-1990; IEC GUIDE 104-1997; IEC 60695-11-4-2004
Adopted Standard	IEC 60695-11-10-1999, IDT
Regulation (derived from)	National Standard Approval Announcement 2008 No.14 (Total No.127)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the plastic and non-metallic material samples in the laboratory determination of the conditions under 50W flame, horizontal or vertical combustion properties. This standard specifies the linear burn rate and afterflame/decay time and the determination of the length of the combustion of the sample. This standard applies to the apparent density according to GB/T 6343 Determination of not less than 250kg/m3 and a solid foam material, is not applicable to ignite the flame generated after applying a curling material, for thin and soft materials should use ISO 9773. This standard specifies the combustion performance level (see 8. 4 and 9. 4), can be used for quality assurance or pre- product composition of the material. Obtain reliable results when the minimum thickness equal to the thickness of the specimen material when applied.