Product Name:okoume veneer E grade
Description
| E 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 fracture length accounts 1/3 of whole panel face,and each end has 4 fractures after adhesive tape pasting |
| 9 | closureable fracture | 3.2mm×1/3 of veneer length is acceptable, and each end has 1 fracture after adhesive tape pasting |
| 10 | open joint | 3.2mm×1/3 of veneer length is acceptable, and each end has 1 open joint after adhesive tape pasting |
| 11 | joint off | two joints off in one veneer is acceptable, but biggest length of joint off is no more than 1/3 of the total length |
| 12 | sound pin knots | unlimited |
| 13 | sound tight knot | allowed |
| 14 | sound burr | allowed |
| 15 | Mineral line and chromatic aberration | allowed |
| 16 | knot holes | knot holes with maximum diameter of 30mm are allowed to spread at several places,but hampering the using of veneer is forbidden) |
| 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 |
| 19 | roughness of panel face | allowed if do not hamper glue spreading and heat pressing |
| 20 | washboard grain | llowed if do not hamper glue spreading and heat pressing |
| 21 | sapwood | allowed |
| 22 | worm holes | thick worm holes on part of one veneer is allowed, not on whole veneer |
| 23 | worm holes: less than 1.6mm | allowed |
| 24 | repairing | 2-3 patch plugs with maximum length of 30cm are allowed, if patch plug is small then length can be a little longer. |
| 25 | colour flecks | unnecessary |
| 26 | marks of parasitic plants | allowed |
| 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 |