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Food production defective product management system

  • Author:Jason Peng

  • Cleanroom Engineering Technology Manager of Deiiang Company.

    Product R&D Manager of GDC Inc. Cleanroom Equipment Manufacturing Company.

    Executive Director of Guangdong Cleanroom Industry Association of China.

    Engaged in R&D of related products for 15 years, with rich relevant technical experience

  • 2024-11-25  |  Visits:
Nonconforming Product Control Procedure

Ensuring quality control and preventing nonconforming products from being misused or leaving the facility

1. Purpose

Ensure that unqualified raw materials, semi-finished products, and finished products covered by the company's quality system are isolated to prevent nonconforming products from being misused or leaving the facility.

2. Scope of Application

Applicable to the control of nonconforming products in the entire process covered by the company's quality system.

Scope-of-application.png


3. Responsibilities

1

Quality Department

Responsible for determining nonconforming products and making graded determinations.

2

Quality Department

Responsible for organizing the review of nonconforming products.

3

Relevant Departments

Responsible for isolating nonconforming products within their scope, and handling and recording them according to the reviewed disposal plan.

4. Workflow

1 Determination of Nonconforming Products

Raw & Auxiliary Materials

Quality inspector determines nonconforming materials based on "Incoming Inspection and Test Control Procedure".

Semi-Finished Products

Workshop inspector determines nonconforming products based on "Process Inspection and Test Control Procedure".

Finished Products

Final inspector determines nonconforming products based on "Final Inspection and Test Control Procedure".

2 Classification of Nonconforming Products

Nonconforming products are divided into three levels according to defect severity:

Level Description Scope
Level 1 General characteristics exceeding tolerance
  • Does not affect product performance
  • Non-batch occurrence
Level 2 Important characteristics exceeding tolerance
  • Related to product performance
  • Batch occurrence of general characteristics
Level 3 Key characteristics exceeding tolerance
  • Related to product performance
  • Batch occurrence of important characteristics

3 Marking & Records

After confirmation, Quality Department marks and records nonconforming products according to "Inspection and Test Status Control Procedure".

4 Isolation

Once detected and confirmed, nonconforming products are immediately isolated. Different types are stored in separate areas.

4.5 Review of Nonconforming Products

Review Level Reviewers Items for Review
Level 1 Shift leader & on-site inspector
  • Level 1 nonconforming products
  • Obviously scrapped products
Level 2 Quality Dept Head & Dept Leaders
  • Level 2 nonconforming products
  • Disputed level 1 products
Level 3 Quality Management Committee
  • Level 3 nonconforming products
  • Disputed level 2 products

4.6 Disposal of Nonconforming Products

4.6.1 Raw & Auxiliary Materials

  • Level 1 (not in storage): Quality Dept proposes disposal, GM approves
  • Level 2 & 3 (not in storage): Returned
  • Level 1 (in storage): Resell for other purposes if usable
  • Level 2 & 3 (in storage): Scrap if unusable

4.6.2 Semi-Finished Products

  • Rework: When possible, then reinspect
  • Defective: Level 1 & 2 that can't be reworked - internal use only
  • Scrap: Level 3 with no rework value

4.6.3 Finished Products

  • Defective: Level 1 & 2 - internal use only
  • Scrap: Level 3 - destroyed and recorded

4.7 Handling of Job Responsibilities

Product Handover: Delivery unit responsible for inspection issues; Receiving unit for appearance defects; Inspector for missed inspections.

Document Errors: Preparer bears direct responsibility; Reviewer and approver bear leadership responsibility.

Quality Accidents: Responsible department bears responsibility for poor internal management.

Improper Transfer: Operator and supervisor responsible for transferring nonconforming products without inspection.

Quality Assurance Commitment

This comprehensive procedure ensures that nonconforming products are properly identified, classified, reviewed, and disposed of to maintain the highest quality standards throughout the manufacturing process.

Cleanroom Insiders Expert Team

Deiiang's expert team specializes in designing and constructing state-of-the-art cleanrooms tailored to meet diverse industry needs. With a focus on innovation and compliance, we deliver pristine environments that ensure operational excellence and product integrity.

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