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Key standards that impact good laboratory ventilation design: ANSI/ASSP Z9.5-2022, Laboratory Ventilation were updated this past year. These standards are written for lab ventilation personnel with responsibility for protecting lab staff and increasing efficiency to save on energy and overall costs.
ANSI/ASSP Z9.5-2022 establishes minimum requirements and best practices for lab ventilation systems including:
Some key changes were implemented to ANSI/ASSP Z9.5-2022. Z9.5 now includes a numerical value for laboratory room air changes (ventilation rates) of 410 ACH, replacing the popular but unhelpful “per Owner specifications” that were previously in place. It also includes an extensive discussion of the Laboratory Ventilation Management Plan and Commissioning.
View TSI Application Note LC-125: Lab Guidelines and Standards. It is a great resource that summarizes key categories of the following standards:
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