Humidity indicator card is the visual indicator device placed in dry packs to show internal relative humidity exposure - it provides quick verification of moisture-control integrity before assembly use.

What Is Humidity indicator card?

• Definition: Card spots change color when humidity exceeds specified threshold levels.
• Purpose: Confirms whether dry-pack conditions remained within acceptable limits.
• Placement: Inserted with components and desiccant inside the moisture barrier bag.
• Interpretation: Reading requires comparison with reference colors at package-open time.

Why Humidity indicator card Matters

• Decision Support: Guides whether parts can proceed to line or require bake recovery.
• Traceability: Provides objective evidence of storage condition at point of use.
• Risk Screening: Detects barrier-seal failures that could otherwise go unnoticed.
• Compliance: Common requirement in standardized dry-pack procedures.
• Human Factor: Incorrect interpretation can lead to wrong handling decisions.

How It Is Used in Practice

• Reading Procedure: Train operators on timing and lighting conditions for consistent interpretation.
• Recordkeeping: Log HIC status at receiving and line issue checkpoints.
• Escalation Rules: Define clear criteria for hold, bake, or return based on indicator states.

Humidity indicator card is an essential visual control for moisture-safe component handling - humidity indicator card value depends on standardized interpretation and action protocols.