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Technical Standards for Wooden Veneer Fire Doors As a leading fire door manufacturer in China, we adhere to the highest standards in our production process. This article outlines the technical standards for our wooden veneer fire doors, ensuring compliance with the latest fire safety regulations. 1. Compliance with Standards Our wooden veneer fire doors meet the latest fire door technology specification GB12955-2008, ensuring maximum safety and performance. 2. Door Frame Construction The door frame is made from fire-resistant wood (hardwood) products. After drying, the wood is cut to specifications, mortised, assembled, and then finished with a decorative veneer, fireproof sealing strips, and paint. 3. Door Leaf Fabrication The door leaf is crafted from carefully dried wood, cut to specification, and assembled into a framework. It is then filled with perlite fireproof materials before being edged, fitted with hardware, and finally painted. 4. Main Materials Hardwood: High-quality hardwood used for the door frame and leaf framework, classified as fire-resistant material. Fireproof Board: Made from calcium silicate, effectively blocking flame penetration and providing insulation, installed within the door leaf. Plywood: Used for internal lining within the door leaf. MDF (Medium Density Fiberboard): Utilized for milled and shaped internal lining within the door leaf. Fireproof Sealing Strips: These expand when exposed to heat, sealing the fire zone effectively to prevent smoke and flame penetration, installed on the door frame. Perlite Profiles: Made from perlite, these materials effectively block flame penetration and are installed within the door leaf. Veneer Panel: Made from wood veneer for aesthetic finishes on the door frame and leaf. Paint: Used for surface treatment of the fire door. 5. Hardware Accessories All hardware components meet the relevant fire resistance requirements. Clients may specify the grade and brand of hardware based on the actual needs of the fire doors. 6. Fire Resistance Ratings Class A: 1.5 hours Class B: 1.0 hour Class C: 0.5 hour 7. Door Leaf Thickness While national standards do not impose mandatory thickness requirements, the thickness must meet the relevant fire resistance rating: Class A: 50 mm Class B: 45 mm Class C: 40 mm 8. Aesthetic Quality The surface treatment of our wooden veneer fire doors involves a meticulous painting process: two coats of primer, one coat of color paint, and two top coats. The finish is smooth, with consistent color transitions, high hardness, abrasion resistance, strong adhesion, and a full paint film. Various wood grain veneers are available (e.g., walnut). 9. Features of Wooden Fire Doors Wooden fire doors can be designed in various shapes, with wood grain finishes and colors that adapt to changing interior styles. Their primary advantages are excellent decorative effects and moderate pricing, making them an attractive choice for construction projects.

Overview and Application Scope of Wood
This standard outlines the classification, specifications, technical requirements, testing methods, inspection rules, marking, packaging, transportation, and storage of wooden fire doors. It is applicable to fire doors constructed using wood or wood-based materials for the door frame, door leaf framework, and door panels.

2.
GB 191: Pac
GB 5464: Non
GB 5823: Ter
GB 5824: S
GB 5825: Symbols
GB 6388: Tra
GB 7633: Fir
GB 13685: Cl
GB 13686: Fire Protection
GBJ 16: Fire Protection
GBJ 45: Fire
GBJ 206: Acceptance S
GBJ 210: Accepta
TJ 9: Load Standards
3
3.1 Wooden Fire Door: A

3.2 Symbol for Wooden Fire Doors: As per GB 5823, the

4. Produc
4.1 Product Classification: Wooden

4.2 Specifications: The

5. Technical Requirements
5.1 Materials

5.1.1 Wood:
a. The selection stand
b. Wooden fire doors must be made from kiln-drie

5.1.2 Filling Materials: Must comply with the stipulations in GB 5464, Section 7.

5.1.3 Glass: Should be non-impacting to th

5.1.4 Hardware Accessories: Must be products test

5.2 Door Operation: Wooden fire doors should open free

5.3 Fire Exit Compliance: Wooden fire door

5.4 Multi-leaf Doors: Double or multi-leaf wooden fire doors must close sequentially.

5.5 Installation Gaps: Th

5.6 Sealing: Sealing grooves should be present a

5.7 Production Requirements:
5.7.1 Door frames and leafs over 50mm thick should use double mortise joints. The fit must be tight, secured with adhesives, and reinforced with wedges.
5.7.2 During the construction of plywood d
5.7.3 The quality of door construction must meet specified standards in terms of surface finish an
5.7.4 When conditions permit, it is preferable to pre-assemble the door leaf and frame, complete with all hardware, before installation.

5.8 Strength Requirements: Wooden fire doors must exhibit sufficient overall strength, maintaining integrity after impact tests.

5.9 Surface Treatment: Surfaces of woo

5.10 Fire Resistance: The fire resistance of wooden fire doors must adhere

5.11 Wind Pressure Resistance: Wooden fire doors designated for external use must comply with GB 13685 regarding wind pressure deformati

5.12 Air and Water Permeability: Performance for air and rainwater permeability must meet GB 13686 standards.

6. Measurement Methods
6.1 Dimensions: Measure the frame’s inner dimensions and the leaf’s outer dimensions.

6.2 Flatness Measurement: Establish a reference plane using three corners of the door

6.3 Tools: Steel tape measures, calipers, or feeler gauges can be used for measurements.

7. Testing Methods
7.1 Moisture Content Testing: Conduct according to the methods outlined in GBJ 206.

7.2 Opening Force Testing: Use digital force gauges to measure the force required to open the wooden fir

7.3 Impact Testing: Evaluate the door’s integrity post-impact from a specified weight, following defined procedures.

8. Inspection Rules
8.1 Acceptance Inspection:
8.1
8.1.2 Factory Inspection: Repeat all relevant inspections before shipment.

9. Marking, C
9.1 Marking: Permanent labels on wooden fire doors must indicate the manufacturer, product name, fi

9.2 Packaging: Woode

9.3 Transportation: Wooden fire doors must be secur

9.4 Storage: Store wooden

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