Nonconforming Product

ISO 9001 section 8.3 Control of nonconforming product states: “The organization shall ensure that product which does not conform to product requirements is identified and controlled to prevent its unintended use or delivery.”  The standard requires that a specific procedure be written that describes how nonconforming product is controlled.

Simply put, the standard is saying: Don’t mix the good stuff with the bad stuff.  Defective material should be placed in an area specifically designated for nonconforming product.  That area should be segregated from good product and specifically labeled as nonconforming product.

The product placed in that area must be labeled, and its nonconformances identified.  It is common for organizations to generate a report that identifies and describes the defective product.  These reports go by many names such as Discrepant Material Report (DMR), Nonconformance Report (NCR), etc.  They typically identify the product, the discrepancy or discrepancies, and the number of pieces involved.  The form is also used to identify the actions taken, who authorized the actions, and what the final disposition of the material was.  The standard allows the following actions:

• Rework the product to specification
• Use as is (“authorizing its use, release or acceptance under concession”)
• Scrap
• Re-grade for some other purpose

My personal opinion is that ‘Use as is’ should be avoided if at all possible.  It has the following problems:

• An inferior product is gets shipped to customers
• A message is sent to employees that defects are acceptable

When product is reworked, it must be inspected for the defect originally identified. 

The discrepancy report, indicating the actions taken and the final disposition is a record which must be maintained.  Periodically records of nonconforming product should be analyzed.  Analysis might identify possible preventive actions that could reduce nonconformances in the future.

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