IS 7316:1974 is the Indian Standard (BIS) for decorative plywood using a plurality of veneers for decorative faces. This standard specifies the requirements for decorative plywood intended for applications like furniture, paneling, and interior decoration. It covers the materials, manufacturing process, dimensions, finish, and testing methods for plywood that has a decorative face made from a plurality of veneers.
Specification for decorative plywood using a plurality of veneers for decorative faces
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Adhesive for Exterior/Boiling Water Resistant Use | Prescribed as Phenol-Formaldehyde (PF) synthetic resin for BWR type. | Performance-based; adhesive must meet Type I (exterior) bond requirements. | ANSI/HPVA HP-1-2020 |
| Water Resistance Test (Exterior Type) | Immerse in boiling water for 8 hours. Must show no signs of delamination. | Boil-dry-boil cycle test followed by tension-shear strength testing to EN 314-1 for Class 3 bond. | EN 636 / EN 314 |
| Formaldehyde Emission | Not specified. | Mandatory compliance with TSCA Title VI / CARB ATCM Phase II (<0.05 ppm for hardwood plywood). | ANSI/HPVA HP-1-2020 |
| Moisture Content at Supply | Between 5% and 15%. | To be determined by agreement, typically 5% to 12% at time of manufacture. | EN 636 |
| Thickness Tolerance (for a 6mm panel) | ± 5% (i.e., ±0.30 mm) | ± 0.4 mm (for sanded panels 4 to <7 mm) | EN 315 |
| Face Veneer Quality | Descriptive: 'Joined edge to edge without gaps', 'free from knots, splits, etc.' | Codified system: Grade 'A' allows for limited, well-matched repairs and slight color variations. | ANSI/HPVA HP-1-2020 |