Contemporary and stylish - raw, satin aluminum office signs for any business, restaurant or building project. Modular sign frames featuring anodized aluminum frames and high impact plastic end caps. These curved-face sign frames include your company name and/or logo. The end caps and sign dividers are available in black or grey plastic. Curved Plate,Custom Plaques,Conference Signs,Aluminum Name Plates Chengdu GodShape Sign Co., Ltd , https://www.signsgs.com
Removable, clear lenses on top and bottom portions of this sign. Main sign portion includes second-surface black vinyl text or graphics (vinyl is placed on the bottom side of clear lenses to avoid tampering or vandalism).
What's ideal about these sign frames is the ability to order new lenses - for room number or employee updates and changes - no need to order an entirely new sign frame. The clear, non-glare lenses are easily removed and replaced with the aid of a suction cup.
The curved sign frame on this page features a curve from left to right. Dimensions to consider when ordering are the actual frame dimensions, as well as the clear lens sizes. Signs feature a 2" Header area that can also serve as a footer by turning and mounting sign frame 180 degrees.
Curved office sign frames are a stylish and easy addition to any building project, new construction or businesses needing to add one sign at a time. Great modular wayfinding solution.
Please call for numerous size variations not listed on this page.
Biosafety cabinet performance analysis
**Biosafety Cabinet Performance Analysis**
Some people may think that a biosafety cabinet is just a metal box with a fan and some HEPA filters. However, in reality, it is a highly sophisticated piece of equipment designed to protect both the operator and the environment from biological hazards. Maintaining the safety of a biosafety cabinet is far more complex than simply replacing filters. This paper aims to address the performance and safety aspects of biosafety cabinets, offering practical guidance for laboratory staff, management, and other personnel involved in their operation and maintenance.
**Filter**
The filter is one of the most critical components in a biosafety cabinet. It plays a key role in purifying the air that enters and exits the cabinet by removing bacteria, dust, and other harmful particles. The filtration efficiency must be high enough to ensure protection against biological risks. Typically, biosafety cabinets use either HEPA (High-Efficiency Particulate Air) or ULPA (Ultra-Low Penetration Air) filters. HEPA filters have a 99.99% efficiency for 0.3μm particles, while ULPA filters offer even higher efficiency at 99.9998%. ULPA filters are often preferred for applications requiring higher cleanliness levels, such as ISO Class 3 environments.
**Fan System**
A properly functioning fan system is essential for maintaining consistent airflow within the biosafety cabinet. It should include features like automatic air volume compensation, which adjusts airflow to maintain a stable flow rate despite changes in filter resistance. The motor should also have thermal protection to ensure safe operation under varying voltage conditions. Centrifugal outer rotor fans are commonly used due to their compact design, low weight, excellent balance, and efficient heat dissipation. These fans provide reliable performance and long service life.
**Interlock Alarm System**
For Type B2 Class II biosafety cabinets, an interlock alarm system is required to monitor and alert users about the status of internal and external fans. This ensures that any malfunction is immediately detected and addressed, preventing potential safety risks.
**Airflow Control and the Concept of “Airflow Safety Performance Zoneâ€**
Airflow control is the core technology behind biosafety cabinets. A well-designed cabinet must not only maintain the correct airflow speed but also ensure directionality, stability, and uniformity to meet biohazard protection standards. International standards such as NSF49 (USA) and EN12469 (EU) specify minimum inlet airflow rates—0.5 m/s and 0.4 m/s, respectively. Maintaining the right airflow speed is crucial: too high can cause turbulence, while too low can compromise containment. Manufacturers should conduct airflow tests on all models to determine optimal settings and provide this information to users.
**About Shanghai Sujing Industrial Co., Ltd.**
Shanghai Sujing Industrial Co., Ltd., located at No. 6, Lane 358, Wencheng Road, Songjiang New City, Shanghai, is a leading manufacturer of purification equipment in East China. The company specializes in providing professional air purification system engineering design, construction, testing, and technical services for industries such as microelectronics, biomedicine, hospital operating rooms, fiber optics, food and beverage, precision instruments, semiconductors, and new materials, in accordance with national GMP requirements.
Sujing’s product lines, including purification workbenches, air showers, fume hoods, and biosafety cabinets, are widely used across various sectors such as healthcare, electronics, pharmaceuticals, biotechnology, food, agriculture, veterinary science, inspection, aerospace, automotive manufacturing, and research institutions. The company enjoys a strong reputation in both domestic and Southeast Asian markets.
**Contact Us**
If you have any questions or need assistance, feel free to reach out through the contact details provided on our website. Thank you for your support, and we look forward to the opportunity to work with you.
Have a pleasant workday!
Thank you & Best regards!
SUJING—JINGHUA