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Organize Sanayi Bölgesi Karşısı No:10
P.K. 230 16425
İnegöl-Bursa/TURKEY

Tel: +90 224 713 75 34
Fax: +90 224 715 00 77

THE FACTORS AFFECTING THE QUALITY OF THE LUMBER AND WENEER

CLASSIFICATION AND PROPERTIES

CLASSIFICATION

1- CLASSES

Veneers are classified into three categories as follows according to the visible properties;
I. Class, II. Class, III. Class

2-TYPES

KVeneers are classified into three categories as follows according to the part of the tree they are produced;
Trunk-Stub, Root, Gall

3-CATEGORIES

Veneers are classified into three categories as follows according to the type of procurement from wooden prism;
Rift Cut (Straight Line), Crown (Figured), Mixed Crown (Mix Figured)

PROPERTIES

1- APPERANCE

The visual properties of the veneer should comply with Diagram-1

Diagram-1

DEFECTS	CLASSES
DEFECTS	I.	II.	III.
COLOR DIFFERENCE	NOT AVAILABLE	NOT AVAILABLE	COULD BE AVAILABLE
COLORING	NOT AVAILABLE	NOT AVAILABLE	Could be available up to 20% of the area.
ROTTEN	NOT AVAILABLE	NOT AVAILABLE	NOT AVAILABLE
KNOT (in each meter square)	There could be two point knots	There could be four point knots and/or two fused knots. Removed knot is not available	There could be point knots, there could be 4 small fused knots and/or two removed knots
CRACK	There could be cracks at the length of max.
	%5'i	%10'u	%20'si
	of the length of the veneer provided that they are located exactly side by side
CURVATURE OF THE FIBER	MAX. %3	MAX. %6	MAX. %12
WAVINESS OF THE FIBER	NOT AVAILABLE	NOT AVAILABLE	COULD BE AVAILABLE
ARE THE HOLES MADE BY INSECTS	NOT AVAILABLE	NOT AVAILABLE	4 SMALL HOLES MADE BY INSECTS COULD BE AVAILABLE AT EACH METER SQUARE. BIG HOLES MADE BY INSECTS IS NOT AVAILABLE
EMBEDDED BARK	NOT AVAILABLE	NOT AVAILABLE	COULD BE AVAILABLE
RESIN POUCH	NOT AVAILABLE	NOT AVAILABLE	COULD BE AVAILABLE
WOUNDS	NOT AVAILABLE	NOT AVAILABLE	NOT AVAILABLE
STAINS FOREIGN MATERIALS	NOT AVAILABLE	NOT AVAILABLE	COULD BE AVAILABLE
OXIDIZING	NOT AVAILABLE	NOT AVAILABLE	COULD BE AVAILABLE
TRACE OF KNIFE OR PRESSURE PLATE	NOT AVAILABLE	THE VENEERS WHICH HAVE DECORATIVE VIEW WITH GALL AND BURL VENEERS ARE AVAILABLE . COULD BE AVAILABLE	COULD BE AVAILABLE

2- PRODUCTION PROPERTIES

The surface of the veneer should be uniform and they should have homogeneous thickness and there should be no rupture and squash.

3- MOISTURE

Moisture of the veneer should be %8 + %3

DIMENSION AND TOLERANCES

1- DIMENSIONS

The width and length of the veneers obtained from the trunk and stub of the tree are free. These veneers should be rectangular and the deviation of the length of the edges intersecting at right angle should be less than 2 mm for 100 cm.

The width, length and shape of the veneers obtained from the burl and root are free. The width, length and thickness of the veneers in the veneer package should be same.

2- TOLERANCES

Dimension and tolerances of the veneers should comply with Diagram-2

Diagram-2

DIMENSIONS

TOLERANCES

(will be in mm according to nominal DIMENSIONS

LENGTH

WIDTH

FREE

FREE

-5

-2

Thickness (mm)

<1

1,1-4

4,1-6

+-0,06

+-0,1

+-0,2

INSPECTION OF THE PROPERTY

The article notes of the properties and inspections foreseen in that standard are available in Diagram-3.

Diagram-3

ITEM NO	PROPERTY	ARTICLE NO.	INSPECTION ARTICLE NO.
1	VIEW	1.2.1	2.2.1
2	PRODUCTION	1.2.2	2.2.1 - 2.2.2
3	HUMIDITY	1.2.3	2.2.3
4	DIMENSIONS AND TOLERANCES	1.3	2.2.2

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