Introduction to cnFans QC Framework
The cnFans Quality Control (QC)
Core Inspection Categories
- Dimensional Accuracy
        
Tolerance thresholds are specified for all critical measurements, with acceptable deviations clearly marked in either metric or imperial units.
 - Material Compliance
        
Excel validation cells force binary confirmation of material certificates (RoHS, REACH) with conditional formatting flagging non-compliant entries.
 - Functional Testing
        
Dropdown menus categorize test results as:
Code Description PASS All functions operational NTT Needs technical tuning (+disposition notes) FAIL Critical malfunction  - Cosmetic Standards
        
Visual inspection criteria reference master samples through hyperlinked images in spreadsheet comments.
 
Data Recording Protocol
- Timestamps auto-generate upon workbook opening
 - Mandatory fields highlighted in yellow
 - Three-level approval system:
        
- Operator (green border cells)
 - Supervisor (blue border cells)
 - QA Manager (red border cells)
 
 
Exception Handling
The spreadsheet includes embedded macros for NCR (Non-Conformance Report)