AGGLUTINATED WOOD PROFILES
1. Beech wood profiles with widths larger or smaller than 50mm are not produced.
2. Beech wood profiles with widths smaller than 2000 mm can be produced upon request.
3. Beech wood profiles with thicknesses less than 20 mm and widths less than 50 mm are not produced.
4. The details for lower-quality profiles are not produced for export and are produced only upon request.
5. TECHNICAL CHARACTERISTICS
5.1.1. The details for profiles are made from common beech wood (Fagus sylvatica L.)
5.1.2 The beech timber for the profiles details is steam-treated.
5.1.3 No other species are used for the production of profile details.
5.2 The details for the profiles must be planed down.
5.3 The front and back surfaces of the profiles must be even and parallel.
5.3.1. The edges must be wholly intact and parallel.
5.3.2. The edges of the front side of the profiles must be perpendicular to the side edges.
5.4 The grooves are glued together with glue indicated by the customer, free of gaps between them.
5.5 The length and the height of the details for any section are defined by the length and the width of the front surface.
5.6 The humidity of the beech profiles must be at 9+/- 2%.
5.7 The wood stock used in the manufacture of our wood profiles meets the requirements of the Bulgarian State Standard.
6. RULES FOR ACCEPTING AND TAKING SAMPLES
6.1. The acceptance of the details is carried out in batches.
A batch means the quality of the wood profiles from the same time, tree species, quality and sizes. The size of the batch is defined upon agreement between the producer and the customer.
6.2. The customer has the right to perform a control check by taking a sample as large as 5% of the batch. All the wood profiles from the sample are checked to determine whether they meet the requirements of the standard. The humidity of the samples is checked on a maximum of 10 pieces from the sample. If in the sample batch more than 3% of the profiles do not meet the standard, the batch is declared substandard.
6.3. Information about orders of wood profiles are indicated in cubic meters (m3) and the calculation of an order’s total size is measured to a precision of 0,01 m3.
7. TESTING METHODS
7.1. All of the wood profiles included the control sample are checked to determine whether they meet the quality requirements stated in the present standard.
7.2. The sizes of the profiles are checked with appropriate measuring instruments.
7.3. The length and width are checked on the front side: the length parallel and width – perpendicularly to the longitudinal axis of the wood profiles . The thickness is checked at both ends and in the middle of the length of the details to determine the average thickness of the profiles.
7.4. The curvature (longitudinal and transverse) of the front part and of the narrow sides of the wood profiles is defined through measuring the gap between the surface of the detail and the edge of a metal ruler placed on it.
7.5. The right angles and the straightness of the wood profiles are checked with two metal rulers situated at right angles to one another.
7.6. The quality of the production and the unmeasured defects of the wood profiles are determined through visual inspection.
7.7. The amount of the measurable defects of the timber is defined according to BSS 4746-73.
7.8. The humidity of the timber is checked with a hydrometer according to BSS 8964-71.
If there is doubt, the humidity is checked with the weight method according to the same standard.
8. PACKING AND MARKING
8.1. The beech wood profiles must be packed in packets.
8.2. Each packet contains wood profiles of the same type, of the same tree species, with the same sizes in thickness, width, length and of the same quality.
8.3. The packets are packed and tied at both ends with a plastic band 10 to 15 mm wide and 0,3 to 0,5mm thick, according to BSS 10065-72.
8.4. The number of wood profiles in one packet and their arrangement are given in the appendix of this standard.
8.5 Markings are located on the upper or bottom row of every packet in permanent paint, containing the following information:
- name of the producing country;
- name of the producing company;
- type of wood profiles;
- tree species used;
- sizes (thickness, width, length) in mm;
- quality;
- guidance of the wood profiles in number and in m3;
9. SAFE-KEEPING, TRANSPORT AND ACCOMPANYING DOCUMENTS
9.1. Our beech wood profiles are packed in packets and stored in closed, clean and dry storerooms with wooden floors (or floors with other thermo-isolating materials).
9.1.1. The temperature and the relative humidity of the air must maintain the humidity of the profiles at 9+/-2%.
9.1.2. The wood profiles must be protected against sunshine, fungus and insect infestations.
9.2. Upon loading, transporting and unloading the wood profiles must be protected against mechanical damage, dampness and chemical contamination.
9.3. Transport of the profiles is carried out in closed, clean and dry vehicles.
9.4. Every batch of wood profiles is accompanied by a quality certificate issued by the producer.