GB/T 39032-2020 in English
VALIDDifficult-flammable particleboard
- Issued on:2020-07-21
- Implemented on:2021-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$291.00
| Standard No: | GB/T 39032-2020 |
| Document status: | VALID |
| Title in English: | Difficult-flammable particleboard |
| Title in Chinese: | 难燃刨花板 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-07-21 |
| Implemented on: | 2021-02-01 |
| ICS Classification: | 79.060.20-Fibre and particle boards |
| Chinese Classification: | B70-Artificial board |
| Professional Classification: | GB-National Standard |
| Related Keywords: | difficult-flammable particleboard introduction interpretation
flame-retardant particleboard standard gb/t39032-2020 standard version combustion classification single grade b/c grade requirements implementation |
| Related Topics: | Flower board
particle board gb/20284 Particleboard Moisture Meter Particleboard Moisture Meter GBT39032 GB/T 5907.1 GB/T 39032-2020 Particle board execution Flame retardant belt Clean production of particleboard Particle Board Extract Pharaoh Density of particle board |
《GB/T 39032-2020难燃刨花板》由TC198（全国人造板标准化技术委员会）归口，主管部门为国家林业和草原局。
Introduction
Interpretation of the core content of the standard
GB/T39032-2020 standard systematically specifies the technical requirements for flame-retardant particleboard for the first time, with the focus on:
| Technical dimension | B1(B) grade | B1(C) grade |
|---|---|---|
| Combustion growth rate index | ≤120W/s | ≤250W/s |
| Total heat release (600s) | ≤7.5MJ | ≤15MJ |
| Flame spread requirements | Does not reach the edge of the sample and no dripping will ignite | |
Analysis of key performance indicators
1. Physical and mechanical performance classification
The standard divides flame-retardant particleboard into 8 types of use, among which P4 type heavy-duty board has the highest requirements:
- Static bending strength: 21MPa (6-13mm thickness)
- Elastic modulus: 3000MPa
- Internal bonding strength: 0.75MPa
2. Combustion performance test method
Double verification using GB/T20284 single combustion test and GB/T8626 flammability test:
Actual case: The P2 type board produced by a certain enterprise was tested with FIGRA0.2MJ=110W/s and THR600s=6.8MJ, which meets the B1(B) grade requirements
Implementation and application suggestions
1. Key points of production process control
- The amount of flame retardant added must ensure that the oxygen index is ≥30%
- The hot pressing temperature is controlled in the range of 160-180℃
- The moisture content deviation does not exceed ±1.5%
2. Precautions for engineering application
In interior decoration, it is recommended that:
- P3/P7 type bearing boards should be used preferentially for ceiling projects
- Moisture-proof type (P5-P8) must be used in kitchen and bathroom areas
- Secondary fire detection is required for fire partition walls
Analysis of standard evolution
Compared with the 2003 version of the old standard, the main breakthroughs of this revision are:
| Improvements | Old standard | 2020 version |
|---|---|---|
| Combustion classification | Single grade | B/C dual-grade system |
| Moisture-proof requirements | Unspecified | 3 verification methods |
| Environmental protection indicators | E2 grade | GB18580-2017 E1 grade |
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