T/CNFPIA 3019-2022 Active

Scope: This document specifies the terms and definitions, classification, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage for flame-retardant impregnated film-faced plywood and fine carpentry boards. This document applies to flame-retardant impregnated film-faced plywood and fine carpentry boards. Main technical content: 5.1 The specification dimensions shall comply with the provisions of GB/T 34722-2017 Clause 5.3. 5.2 The appearance quality shall comply with the provisions of GB/T 34722-2017 Clause 5.2. 5.3 The physical and chemical properties shall comply with the provisions of GB/T 34722-2017 Clause 5.4. 5.4 The formaldehyde emission limit shall comply with the provisions of GB/T 39600-2021. 5.5 Combustion performance 5.5.1 The combustion performance of flame-retardant impregnated film-faced plywood and fine carpentry boards shall comply with the provisions of GB/T8624-2012 Clause 5.1.1 for flame-retardant B1 grade, and the specific requirements shall comply with Table 1. Table 1: Combustion performance test items and indicators Combustion performance grade Test method Classification criterion B1 GB/T20284 Flame spread index FIGRA≤0.2 MJ≤120 W/s; Flame lateral spread length LFS shall not exceed the edge of the long wing of the sample; Total heat release in 600s THR600s≤7.5 MJ GB/T8626 Ignition time 30s to 60s; Flame peak height Fs≤150 mm within 60s; No combustion droplets igniting filter paper phenomenon within 60s Note: FIGRA0.2 MJ - The combustion growth rate index when the sample releases 0.2 MJ of heat (source: GB/T8624-2012, Clause 3.16); FIGRA0.4 MJ - The combustion growth rate index when the sample releases 0.4 MJ of heat (source: GB/T8624-2012, Clause 3.17); LFS - The lateral spread of the flame on the long wing of the sample (source: GB/T20284-2006, Clause 3.5). 5.5.2 The smoke characteristics, smoke toxicity, and combustion droplets/particles of flame-retardant impregnated film-fac