Ashrae 110 Fume Hood Testing An Overview

Fume hoods are a critical part of any laboratory. Given that they are used often, it’s critical to ensure that they also perform well at any point. The best way to do that is to conduct regular testing as per ASHRAE’s standards. In this infographic, we’re discussing the ASHRAE 110 testing standards devised specifically for fume hoods and what it entails.

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The W’s	Key Pointers
What is it?	The ASHRAE 110 standard for fume hood testing is conducted by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) The purpose is to continuously test the performance of fume hoods to ensure that they are compliant and performing up to the mark Some capabilities tested are containing and exhausting fumes—basically its operational capabilities
How do you test?	Types: As Manufactured (AM), As Installed (AI) and As Used (AU) Primary tests: inflow face velocity profiling, airflow smoke pattern testing, tracer gas tests Additional testing options: Cross-draft testing, Local and large volume smoke visualisation testing, Tracer gas containment testing, VAV (variable air volume) response testing, Sash motion effects tracer gas containment testing Nitrous oxide is used as the tracer gas
How often should you test?	ASHRAE recommends that testing must be done at least once a year This is to ensure that the fume hood’s performance is optimal at all times It also ensures that any experimental product remains in controlled environments as required If the equipment is repaired or changed, testing must be done once again

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