U.S. Federal Standard 209E

U.S. Federal Standard 209E (FS 209E) was a standard that establishes standard classes, and provides for alternative classes, of air cleanliness for cleanrooms and clean zones based on specified concentrations of airborne particles. It prescribes methods for verifying air cleanliness and requires that a plan be established for monitoring air cleanliness. It also provides a method for determining and describing concentrations (U descriptors) of ultrafine particles.

About the Author: Bleumax

The Competitive Edge: Streamlined Manufacturing with Single-Vendor Welding and Laser Marking

Every step in the manufacturing process presents an opportunity to create a competitive advantage. One often-overlooked strategy for gaining a competitive edge is consolidating critical processes, specifically welding and component identification, with a single, specialized vendor.

TIG, MIG, EB, or…? Choosing the Right Welding Technology Goes Deeper Than Identifying Acronyms

Choosing the wrong welding technology for your application can cause significant consequences: weak joints that fail under stress, excessive heat distortion that ruins precision components, or contamination that compromises material integrity.

The Role of Laser Hermetic Sealing in Aerospace Supply Chain Reliability

Reliability is the cornerstone of aerospace manufacturing, where even minor failures can lead to catastrophic consequences. One critical aspect of ensuring component longevity and performance is hermetic sealing—a process that protects sensitive electronics and mechanical systems from environmental contamination.