Before using the special fume hood, we should not only evaluate whether the fume hood is blocked by airflow, but also consider the problem of excessive turbulence. The fume hood must be certified at least every year to ensure safe operation. Typical tests may include surface wind speed test and smoke test. Certification bodies will also conduct tracer gas control tests. These types of tests are particularly important because surface velocity does not always accurately predict leaks in fume hoods.
The safety of laboratory fume hoods is mainly reflected in:
1, adopting single-slit exhaust structure to effectively exhaust harmful gases.
2, streamlined handle, there is a gap between the handle and the glass. Because the airflow on the table is rotating, it ensures effective air intake from the surface.
3. Set the anti-falling pin for the window. In case the steel wire rope falls off and the glass window accidentally falls, it will be caught with the anti-falling pin to prevent personal injury.
The glass window is made of tempered glass. Even if the glass is accidentally damaged or exploded, there will be no injury accident.
5. The upper part of the fume hood is provided with ventilation holes, so that air can enter even if the glass window is closed, so as to avoid generating large negative pressure.
6. The fume hood shell is made of metal, which is fireproof and nonflammable. The inner cavity is made of flame retardant or incombustible materials such as beta-proof plate and stainless steel plate, and the desktop is made of solid physical and chemical plate or stainless steel plate, which is acid and alkali resistant, heat resistant and flame retardant.
7. The effective height of the glass window is 800mm, the inner cavity 1200mm, and the height of the table is 800mm, which conforms to ergonomics, is convenient to operate, has a large use space, and improves safety.
8. Remote operation of water nozzle and gas nozzle outside the cabinet is more convenient and safer than direct operation by hand.
As a leader in the laboratory construction industry, Big Oak Group specializes in providing laboratory furniture equipment manufacturers. On the basis of advocating safety, cleanliness, environmental protection and energy saving, it provides customers with humanized laboratory furniture, enjoys the new experience of laboratory use brought by front-end technology, and becomes the vane of high-quality laboratory systems.
Up to now, Big Oak Group has passed the SEFA certification in the United States, and the relevant qualifications and certification systems are readily available. We have always maintained close cooperation with the world's top suppliers of equipment and materials (such as Wordner and Erlab in France and Renggli in Switzerland). ), and joined hands with Germany's Waldner Company, the world's largest laboratory equipment manufacturer, to introduce their modern laboratory products and equipment into major laboratory systems in China.