Guests on wooden doors are wrong acts and are not subject to mandatory certification. What exactly implies these two terms, we will understand below.
Wooden interior doors
GOST is a state standard of the CIS quality standard, which includes the code names of countries encrypted by letterproof and digital designations.
The certificate is a certifying document that confirms the compliance of the goods regulated quality standards.
The responsible manufacturer, confident as wooden doors issued for sale, has certificates of conformity. Thus, he guarantees the quality of the goods by setting the corresponding price on it.
Experienced buyers acquire the doors in such stores, knowing that such a product will last long, without requiring repair and replacement of structures.
GOST to wooden doors
Depending on the type of room, the following standards are valid:
- GOST 24698-81 - on exterior doors to public and residential premises.
- 14624-84 - for industrial premises.
- 6629-88 - Internal doors.
- 475-78 - General specifications.
- 26892-86 - Testing for protective functions.
- 28799-90 - on the parameters from waterproof.
- 28786-90 - determining the requirements of compliance with climatic conditions.
- 30109-94 - on protection against hacking.
The main standards are the first four, and the rest go as extra. Though standards and accepted during the time of the USSR, they act to this day. Since the assembly technique remained the same, only materials, components and design changed.
To obtain certificates, in addition to state standards, the doors must comply with the requirements of construction standards and rules for such parameters: thermal conductivity, noise insulation and breathability.
GOST 475-78
This is the main standard that extends to the wooden doors of public, industrial and residential premises. It regulates the basic parameters by which high-quality doors should be produced.
Classify them on the following features:
- Purpose.
- Constructive features.
- Direction and method of discovery. I distinguish between right and left-sided, as well as rotating on the axis. By the way - sliding and doors of the book.
- Number of cloths. If there are two canvases, each width can be different.
- Moisture resistance.
- The presence of glazing is the possibility of additional lighting.
- Finish. Usually the surface is covered with paint, enamel or varnish.
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Interior interior doors check for such parameters:
- Stability when exposed.
- Easy in opening.
- Strength.
- Noise isolation.
Technical norms
- Geometry plane plane. When checking, the doors are measured and calculated deviations from the vertical and plane to a millimeter. In case of exceeding these indicators, the goods are recognized as defective, as such a door can be saved.
- Set the number of permitted defects that require grinding and putty until the perfect surface is achieved.
- Check the filling material on the absence of rotten bars. Internal filling should be processed or painted.
- Using one type of wood. The box and canvas are made of the same canvas, which increases the service life and improves the appearance.
GOST 24698-81
Standard requirements are based on GOST 475-78. Exterior doors of residential premises must match:
- High-quality heat and noise insulation. It is achieved by a dense aggregate.
- High strength with accurate size and proper layout.
- Increased moisture resistance.
Exterior as well as internal wooden doors must comply with such requirements:
- In the rooms, the humidity of which over 60% should be moisture-resistant doors from the needles.
- In the residential premises of normal humidity, wood should be made of solid hardwood, steady.
With a satisfactory result of the inspection, the company receives the certificates shown in the photo. They are issued for a period of up to three years.
The buyer, in addition to documenting confirmation, can check the label on the inside of the web with a trademark mark, model, year of production, and so on.
Guests and certificates for wooden doors have a positive effect on the seller's reputation - purchasing power increases, the company becomes competitive in the market. For the buyer, this is a quality guarantee, since certificates ensure compliance with the technical parameters that cannot be defined on the eye.