Seven tips for purchasing natural and environmentally friendly solid wood furniture
Natural solid wood furniture, environmental protection, health, revealing the natural beauty of the original, deeply favored by people, when buying solid wood natural environmentally friendly furniture, pay attention to the seven skills.
Smell
Most of the wooden furniture sold on the market, except for all solid wood furniture, has wood-based panel parts. Therefore, you should especially smell when you buy. If you make people cry and sneeze, it means that the formaldehyde emission of the furniture is relatively high, there may be problems, do not buy.
See scar
All solid wood furniture has natural color difference, and its color and texture have certain differences. The appearance of solid wood veneer furniture is very small, and its texture is clear and even better than solid wood furniture. Consumers can use the texture and knots of solid wood to see the corresponding position on the outer and back sides respectively. If the correspondence is good, it is pure solid wood. In addition, looking at scars is also a good way to identify pure wood, optimistic about the location of the scar side, and then find the corresponding texture on the other side.
Pay attention to the cross section
For the recognition of furniture combined with wood and wood, in short, it is generally a man-made board in a large area such as a wardrobe frame and a laminate, a drawer inner panel and the like. If the manufacturer puts the solid wood skin on the artificial board, although the surface is smooth and the durability is improved, the two sides of the board will be found to intersect the texture wood grain, which is not the normal growth direction of the tree. This is the main identification method.
Do not miss the nail hole
Some frames use solid wood, side panels, shelves, etc., which use thin veneer particle board or medium density board furniture. The center of the board is actually plywood or various waste wood. This kind of furniture is difficult to identify when looking at the sample, but when you install it after entering the field, you can see the position of the nail hole. If the particle board has wood chips, the MDF will be pulpy. Consumers can use this feature. Identification.
Look at the report
Consumers request a quality inspection report from the dealer to see if the amount of formaldehyde released from the furniture is within the limits allowed by the standard. The national standard "Limits of Hazardous Substances in Wood Furniture for Interior Decoration Materials" stipulates that the amount of formaldehyde released in wooden furniture should not exceed 1.5 mg per liter. If the purchased wood furniture exceeds the standard, do not buy it. It is recommended to purchase furniture that meets the requirements of E1 standard plate. Only plates that meet the E1 standard can be truly harmless to the human body.
Ask the price
Most of the wood furniture with excessive formaldehyde is made of cheap artificial boards, so the price of the whole set of wooden furniture is often "ultra-low". Due to the intensive use of inferior glue in cheap man-made boards, the amount of formaldehyde released is seriously exceeded.
Signing a contract
When customers purchase furniture, it is best to sign the "Furniture Sale Contract" and write the environmental protection clause into the contract.
Invoice
Nowadays, a large number of consumers are tempted by low-cost dealers, taking white bars, receipts, etc., and when they go out of complaints about quality problems, such informal invoices are often difficult to use as valid evidence, so they buy The furniture must be issued by the dealer with a formal invoice. In order to give consumers complete peace of mind, every piece of furniture sold in the Comando store will indicate on the receipt voucher or contract that the plates used meet the E1 standard and bear legal responsibility.
General Type Freeze Dryer
This model lyophilizer is widely used in medicine, pharmacy, biology research, chemical industry and food production ,etc. A long term preservation is much easier after the freeze drying process. The general type freeze dryer can be restored to the original state and maintain their chemical and biological characteristics after being watered. Freezing and drying process are finished in the same place (patented product).
1. The shelves are made with unique patented technology, high pressure resistance, high flatness, and good temperature uniformity.
2. The cooling speed can be controlled throught The freeze-drying curve optimization control technology in the pre-frozen phase, and at the same time, the sample heating speed and the current vacuum value also can be controlled in the sublimation and analytical drying stages.
3. The patented gas diversion design and control technology ,strong ice collecting capacity and high drying efficiency.
4. Highly efficient mixed refrigerant medium, lower freezing point and higher boiling point, high heat exchange efficiency.
5. Vacuum adjustment during drying operation to avoid foaming and blowing of special materials and improve drying efficiency.
6. Industrial-grade embedded touch screen + dedicated SH-HPSC-IV modular controller, stable and reliable system, high control accuracy.
7. The professionally designed LYO-CONTROL control system can save multiple sets of process . At the same time, the process can be adjusted in real time during the drying process to improve the process optimization rate.
8. Flexible manual + automatic control mode, the manual for groping process, and the automatic for batch production.
9. The powerful LYO-MEGA host computer control system can record and save the operating data, curves and alarm records for ten years to improve the traceability of products; at the same time, it is convenient for observation, operation and fault diagnosis.
10. User grades and passwords can be set, and operations can be decentralized
11. The non-stardarded can be customized as requested.
Production Type Freeze Dryer,Industiral Freeze Dryer,Large Scale Freeze Dryer,High Quality Freeze Dryer,Goood Quality Freeze Dryer
Zhengzhou mingyi instrument equipment co.,ltd , https://www.mingyint.com