GB/T 2408-2021 (English Version) PDF

Scope: This document describes a laboratory method for the determination of the horizontal or vertical burning behavior of strip specimens of plastics and non-metallic materials under 50 W flame conditions. This test method is suitable for determining the linear burning rate and self-extinguishing properties of materials. This document is applicable to the determination of the combustion performance of solid and foam materials with an apparent density of not less than 250kg/m3 determined in accordance with GB/T6343-2009. This document contains two test methods. Method A is horizontal combustion, which is used to determine the linear burning rate of materials under specified conditions. Method B is vertical combustion and is used to determine the self-extinguishing properties of materials under specified conditions. Note 1: ISO9772 specifies the test method for the combustion characteristics of materials with an apparent density not higher than 250kg/m3. ISO 9773 specifies the test method for materials that deform or burn into fixtures due to thinness using method B of this document. Note 2: The pre-selection guide is provided by IEC60695 130.

GB/T 2408-2021 Referenced Document

GB/T 12006.1-2009 Plastic.Polyamides.Part 1:Determination of viscosity number
GB/T 17037.1-2019 Plastics—Injection moulding of test specimens of thermoplastic materials—Part 1:General principles，and moulding of multipurpose and bar test specimens
GB/T 17037.5-2020 Plastics—Injection moulding of test specimens of thermoplastic materials—Part 5: Preparation of standard specimens for investigating anisotropy
GB/T 5169.22-2015 Fire Hazard Tests for Electrical and Electronic Products - Part 22: Test Flame 50W Flame Apparatus and Confirmation Test Methods
GB/T 5471-2008 Plastic.Compression moulding of test specimens of thermosetting materials
GB/T 9352-2008 Plastic.Compression moulding of test specimens of thermoplastic materials
ISO 16012:2015 Plastics - Determination of linear dimensions of test specimens

2021 GB/T 2408-2021 Plastics—Determination of burning characteristics—Horizontal and vertical test
2008 GB/T 2408-2008 Plastics.Determination of burning characteristics.Horizontal and vertical test
1996 GB/T 2408-1996 Plastics--Determination of the burning behaviour of horizontal and vertical specimens in contact with a small-flame ignition source