Production quality. Whether the edges of wooden furniture are flat and the angles are very accurate; Check whether the decorative parts of the edges and surfaces are evenly glued, firmly bonded, and whether the trimming is smooth and even; Whether the end faces of visible parts such as side panels, door panels, drawer panels, etc. have been edge sealed; The assembly and assembly parts should be checked to see if the grooves at the drilling holes are exquisite and neat, and whether the connectors are firmly installed; Whether the gap between the door and drawer joints is too large, generally required to be between 1.5mm and 2.0mm, and whether the opening and sliding of the door and drawer are flexible and flexible.
The quality of metal and plastic parts. The quality of metal parts also determines the internal quality of furniture inside wooden furniture. Metal parts require flexibility, smoothness, good surface electroplating treatment, no rust, burrs, etc., and high precision is required for mating parts. Plastic parts should have a beautiful appearance, bright colors, and the focus areas during use should have strength and elasticity, and should not be too thin. The open type connector requires flexible rotation and no frictional sound.
Main dimensions. The main dimensions (i.e. functional dimensions) of furniture are specified in national standards. According to regulations, the depth of space inside the wardrobe for hanging long clothes should be greater than or equal to 530mm, the distance between the upper edge of the clothes hanging stick and the upper surface of the bottom plate should be greater than or equal to 1400mm, the height of desk furniture should be specified as 680mm~760mm, the middle clearance height from the lower edge of the middle drawer of the office desk to the ground height should be greater than or equal to 580mm, and the interlayer clearance height of the bookshelf should be greater than or equal to 230mm~310mm. If the furniture is smaller than the specified size, it will bring many inconveniences and affect its use.
Limit of harmful substances in wooden furniture. At present, the harmful substances present in furniture mainly include free formaldehyde released from artificial boards and adhesives, as well as soluble lead, chromium, cadmium, and mercury in furniture paint films。
How to identify formaldehyde in office desks? When choosing an office desk, you can first approach the drawers and tabletop of the desk and sniff it with your nose to see if there is an irritating odor and if it is strong. If you feel a strong pungent odor accompanied by discomfort such as tears, itching in the throat, and coughing, then it is not advisable to choose this type of office desk. Secondly, furniture factories should provide a certificate of conformity for raw material inspection to see if the materials used by the manufacturer are qualified, and to control the quality from the source of furniture materials. In addition, it is necessary to carefully check whether the edges of artificial board furniture are sealed, because formaldehyde is emitted most severely at the edges of artificial board furniture. According to furniture standards, the edges of artificial board furniture must be sealed.