Uma-5588 Method -

Subject: Standard Operating Procedure (SOP) for the Determination of Trace Metal Contaminants in Aqueous Solutions via UMA-5588 Method

Document ID: LAB-CHEM-5588 Revision: 2.1 Effective Date: [Current Date] uma-5588 method

Limitations and Considerations

No method is perfect. The UMA-5588 method has three notable limitations: Thickness Constraints: The 55–88 kHz sweep is optimal

  1. Thickness Constraints: The 55–88 kHz sweep is optimal for materials between 2 mm and 50 mm thick. Materials thinner than 2 mm generate overlapping wave interference (multi-mode echo confusion). Materials thicker than 100 mm attenuate the 88 kHz signal too much.
  2. Surface Roughness: Very rough surfaces (e.g., cast iron) require extensive couplant application or surface grinding to prevent air gaps between the transducer and the material.
  3. Cost: The specialized UMA-5588 transducers are approximately 3x the cost of standard 50 kHz contact transducers.

Industry Applications Case Studies

Required Equipment

  1. Phased Array Controller: Must support frequency linear sweep (not just pulse-echo).
  2. UMA-5588 Transducers: Broadband dry-couplant or immersion transducers rated for 50–100 kHz (low-frequency focus).
  3. Software License: The phase analysis algorithm (UMA-5588 PhaseLock) is usually proprietary.