Measurements in a laminar flow cabinet

    For personal, product and environmental protection

    In order to protect products and samples at microbiological laminar flow cabinets from contamination, and to shield staff and the environment from potentially hazardous material, ventilation is essential. A laminar flow cabinet has an opening through which the user can carry out work procedures inside the cabinet. It is constructed such that the user is protected, the risk of a product and a cross-contamination is low, and the escape of suspended airborne contamination present in the cabinet is controlled by suitably filtered convection air and by filtration of the air output. Accordingly, DIN EN 12469 demands the testing of the ventilation conditions and the air volume flow.

    • Measure air flow velocity reliably even at low velocities

    • The air supply flow through the HEPA filter should be monitored

    • The required measurements also include lighting and sound level

    Precise measurement of differential pressure

    Laminar flow cabinet

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    Laminar flow cabinet

    With VAC measuring instruments and suitable probes, you test the air velocity and air flow at laminar flow cabinets exactly. Use this to reduce the risk for users when dealing with dangerous or potentially dangerous micro-organisms.

    • Safe and exact measurements of air velocity and air flows.

    • Reliable testing of sound level

    Laboratory extractor

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    Laboratory extractor

    EN 14175 Part 3 establishes test procedures for evaluating the security and performance of the front sashes and air flow of extractors.

    • The anemometer must be able to measure unidirectionally with a directional sensitivity of ± 20 °C

    • The measurement uncertainty may be within the range of 0.2 m/s to 1.0 m/s max. 0.02 m/s ± 5 % of the measurement value

    Tips

    Climate measurement in the cleanrooms

    Valuable information on measurements of air temperature, relative air humidity and differential pressure as well as on flow velocity testing in cleanrooms

    • The most important norms

    • Useful tips on measurements

    • Measuring instrument requirements

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    Measurements in cleanrooms

    Important norms concerning the test procedures

    Selected measurements for the qualification of cleanrooms

    What is important when selecting the measuring instrument?

    Further measurements in your cleanroom

    Temperature and humidity testing

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    Differential pressure measurement for rooms and filters

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    Air flow testing and air exchange rate

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    Multifunctional air velocity & IAQ measuring instruments

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    Cleanroom

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