Before using a specialized fume hood, not only should we evaluate the fume hood for airflow obstruction, but also consider excessive turbulence. Fume hood certification is required at least annually to ensure safe operation. Typical tests may include a face air velocity test and a smoke test. The certifying agency will also perform tracer gas control testing. These types of tests are especially important because face velocity is not always an accurate predictor of leaks in fume hoods.
The safety of laboratory fume hoods is mainly reflected in:
1, the use of a single-seam exhaust structure, effectively discharging harmful gases.
2, streamlined handles, handles and glass leave a gap between the air flow on the countertop due to rotation, from the surface to ensure effective air intake.
3, set the window anti-fall pins, in case the wire rope falls off the glass window accidentally fall, with anti-fall pins will catch, to prevent bruising personnel.
4, the glass window is made of tempered glass, even if the glass is accidentally broken or exploded, there will be no injury accident.
5, the upper part of the fume cupboard is equipped with ventilation holes, even if the glass window is closed, it can also enter the air to avoid generating more negative pressure.
6, fume hood shell selection of metal materials, fire prevention and non-combustion. The inner cavity is made of fire-retardant or non-combustible materials such as anti-belts board, stainless steel board, etc. The countertop is made of solid-core physicochemical board or stainless steel board, which is anti-acid and alkali, heat-resistant and fire-retardant.
7. The effective height of the glass window is 800mm, the inner cavity is 1200mm, and the height of the countertop is 800mm, which is in line with the ergonomics, easy to operate, and the use of large space improves the safety.
8, water nozzle, gas nozzle in the cabinet outside the remote operation of the handle, more convenient and safe than direct operation by hand.
As a leader in the laboratory construction industry, the large oak group specializes in providing laboratory furniture equipment manufacturers, to provide customers with laboratory furniture in the advocacy of safety, cleanliness, environmental protection, energy saving on the basis of adding a humanized setup to enjoy the front-end technology brought about by the use of the laboratory of the new experience, has become a high-quality laboratory system of the wind vane.
DaOak Group since its development, through the U.S. SEFA certification, the relevant qualifications and certification systems are complete, has been with the world's top equipment, materials (France's Wordner and Erlab, Switzerland's Renggli and other dozen of international partners) have maintained a close relationship, but also hand in hand with the world's largest laboratory equipment manufacturers Germany WALDNER, to introduce their modern laboratory products and equipment into the domestic major laboratory systems.