Section

Compressed air

How ISO 8573-1:2010 writes a purity class, and how a leak survey is tagged, repaired and checked again.

A coil of clear tubing, a plain metal bowl and an unlabeled regulator on a gray bench

Start here

Name the purity class at the point of use, then tag each leak and check it again after the repair.

Air preparation for packaging lines sets out the particle, water and oil order in ISO 8573-1:2010, including the class 0 rule. Compressed air dryer selection: refrigerated vs. desiccant maps ISO 8573-1 water classes 1 through 6 to refrigerated, twin-tower desiccant, and membrane dryers, CAGI ADF 100 inlet temperature correction, and coalescing filtration. Leakage survey plan is a tag-and-repair sheet. The flow rates it cites come from a 2004 public tip sheet. Compressed air leak detection: ultrasonic survey physics, FRL unit leak points, and orifice ROI covers 38–42 kHz ultrasonic probes vs. MEMS acoustic cameras, choked orifice SCFM and annual ROI tables from U.S. DOE Tip Sheet #3, and FRL unit leak points.