planning for passing IEST leak tests

How AJ Manufacturing Helps You Ensure You Meet IEST-RP-CC034 HEPA and ULPA Filter Leak Test Regulations

Recent regulations make IEST-RP-CC034 HEPA and ULPA Filter Leak Tests mandatory in many more critical environments and other specialized facilities than ever before.

Building operations managers like you must consider a number of factors to help them ensure their buildings and equipment pass leak tests, both when the commercial HVAC equipment and system are new, and during ongoing check-ups on quality and durability.

This IEST recommended practice (RP) covers definitions, equipment, and procedures for leak-testing HEPA and ULPA air filtration components is performed on supply air or exhaust air filters using a photometer. The photometer scans the filter’s surface, looking for pinhole leaks that could allow the transmission of contaminants. Lack of integrity would be unacceptable in critical environments.

In fact, you have to assume anything above the ceiling level is contaminated and cannot be allowed to pass through the filter. That’s why preventing the occurrence of leaks can be difficult.

Preventing Leaks in a Commercial Air Purification System

All air filtration components must be airtight and leak-free in both positive and negative pressure differential conditions, with penetrations kept at a minimum.

Every possible leak path must be blocked with an effective, long-term sealant that can survive the inevitable settling of buildings, construction vibrations, and everyday use.

Gaskets aren’t good enough in most cases. Instead, consider good, rigid support for hard ceilings that will stay in place under changing pressure conditions, like when someone opens a door. A quality caulk maintains flexibility and can be used to seal off potential leaks.

Regular inspections and maintenance, and high quality repair work will also help ensure the clean room continually passes tests year after year.

Our Commitment to Fabricating Quality Commercial HVAC Equipment and Components

As an international fabricator of commercial stainless steel HVAC products, AJ Manufacturing listens to our customers to learn more about the hardships of leak testing so that we can create solutions for them.

As a result, we have:

  • Reduced ceiling penetrations by offering integrated lighting with fan filter units.
  • Developed challenge manifolds that meet IEST requirements, and have the data to back them up.
  • Optimized our knife-edge seals to work under a variety of conditions to minimize leakage opportunities.

And, our knowledgeable staff can help you get from planning your air filtration system through certification to make sure your project is done right the first time.

Work with AJ Manufacturing

Breathe easy knowing that your clean room filtration project is in good hands with AJ Manufacturing, an industry leader in custom and standard stainless steel air distribution products for critical environments.

At AJ Manufacturing, headquartered in Kansas City, Missouri, we engineer each product we fabricate to meet your site’s unique characteristics and challenges, and fabricate them using precision laser cutters, CNC press brakes, and robotic welding arms.

Every piece is made-to-order and thoroughly leak tested with our own photometer before we ever package and ship it to your job site.

To learn more about our products, or to place an order, contact our national sales manager, Amy Van Wagner, at (816) 231-5522 or amyvanwagner@ajmfg.us, or send us a message online.

Planning for Passing: IEST Leak Testing on ULPA and HEPA Filters was last modified: May 24th, 2022 by AJ Mfg
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