SOP for IPA Wipes in Class 100 Cleanrooms

IPA (isopropyl alcohol) wipes are widely used in Class 100 (ISO 5) cleanrooms for residue-free cleaning of sensitive surfaces. Following standardized procedures ensures contamination control and equipment safety.

Key Features:

  1. High Purity IPA: Effective for dissolving oils, fingerprints, and light contaminants.

  2. Lint-Free and Non-Abrasive Wipes: Protect delicate surfaces such as PCBs, lenses, and instruments.

  3. Rapid Evaporation: Leaves no residue and minimizes downtime.

  4. Controlled Application: Ensures uniform cleaning and prevents excess liquid.

Standard Operating Procedure:

  • Preparation: Wear appropriate cleanroom attire and gloves; use pre-wetted IPA wipes.

  • Surface Wiping: Employ unidirectional strokes from top to bottom; avoid circular wiping that may redistribute particles.

  • Pre-Cleaning: Remove loose debris or dust before IPA wiping.

  • Single-Use Handling: Discard wipes after each application to prevent cross-contamination.

  • Post-Cleaning Inspection: Verify surface cleanliness and ensure no residues remain.

Applications:

  • Electronics: Cleans PCBs, chips, and sensitive components.

  • Optical Equipment: Maintains lenses, microscopes, and sensors.

  • Laboratory Surfaces: Cleans benches, instruments, and glassware.

  • Cleanroom Maintenance: Supports Class 100–1000 environments with consistent, residue-free cleaning.

Benefits:

  • Ensures Cleanroom Compliance: Minimizes particle contamination in critical areas.

  • Protects Equipment: Non-abrasive, lint-free wipes reduce damage and ESD risks.

  • Improves Efficiency: Standardized procedure saves time and enhances cleaning consistency.

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