Product Name:okoume veneer D grade
Description
| D grade | ||
| 1 | (Thickness tolerance) | according to contract(normally ±0.05mm) |
| 2 | moisture content（in transport） | 12% |
| 3 | dimension tolerance | 1270mmm×2540mm |
| width：+25.4mm-0；length：+25.4mm-0；diagonal：+25.4mm | ||
| 4 | square | within 6.3mm |
| 5 | cracking caused by wrong dry processing | not allowed |
| 6 | high-low interleaving casued by slopes | maximum length of 25.4mm measured according to diagonal |
| 7 | pasting adhesive tape on both sides | adhesive tape needed,but pasting on the middle of floor is forbiden, adhesive tape length standard is 5cm,if tape lenth over 5cm ,above D grade(incuding D) is not permitted. |
| 8 | closureable fracture | acceptable maximum length is 610mm,and each end has 3 fractures after adhesive tape pasting |
| 9 | closureable fracture | a small mount of fractures with maximum length of 1.6mm×355mm is acceptable,and each end has 1 fracture after adhesive tape pasting |
| 10 | open joint | 1.6mm×(maximum length)455mm is acceptable,and each end has 1 open joint after adhesive tape pasting |
| 11 | joint off | one joint off in one veneer is acceptable,but the biggest joint off is no more than 455mm |
| 12 | sound pin knots | knots appeared seldom and distributed dispersively ,knots looking obviously is allowed |
| 13 | sound tight knot | allowed |
| 14 | sound burr | allowed and looking obviously is allowed |
| 15 | Mineral line and chromatic aberration | allowed |
| 16 | knot holes | not allowed |
| 17 | decay rot,resin fleck,glue marks and other machine marks | a small amount is acceptable |
| 18 | heartwood colour mixed with sapwood colour | according to factory except additional agreement |
| 19 | roughness of panel face | Maximum roughness places is 2 ,but no more than 3% of the veneer |
| 20 | washboard grain | a little bit washboard grain is allowed |
| 21 | sapwood | allowed |
| 22 | worm holes | worm holes with maximum diameter of 3.2mm is allowed to spread sparsely.discolouration is forbidden |
| 23 | worm holes: less than 1.6mm | dispersive |
| 24 | repairing | not allowed |
| 25 | colour flecks | unnecessary |
| 26 | marks of parasitic plants | Maximum marks of parasitic plants in one veneer is 4 with maximum area of 3.2mm*50mm |
| 27 | lineation | allowed |
| 28 | dog holes | allowed no more than 10% dog holes of total amount |
| 29 | grease spot | not allowed |
| 30 | filament | not allowed |