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Quality control

PREPRODUCTION
√ Physical plant surveys to evaluate manufacturing and storage facilities, production stability and capacity. Evaluate supplier’ s use of any subcontractors or outsourced production processes.
√ In-depth quality assurance reviews including incoming material controls, in-process quality controls and final inspection quality criteria are conducted.
√ Social accountability concerns are reviewed including vendor employee interviews.
√ processing of contractual agreements and terms of supply.
√ Factory assessment report is generated which indicate all major/minor non- conformities along with a recommendation to proceed or not to proceed with vendor qualification process.
 
PRODUCTION
√ Detailed product specifications and quality criterion are developed.
√ Pilot run and product testing before initiation of mass production.
√ “Golden sample” and Min/Max range boards are used to confirm agreed product acceptance criteria.
√ Statistical process controls, rework stages and final pass yields are monitored to define potential areas of risk.
 
FINAL INSPECTION
√ Every shipment is inspected by a MingHua Sourcing quality inspector prior to authorization for final shipment release.
√ Inspections utilize a comprehensive and product specific inspection procedure (IP) developed during design stage and encompassing customer’s requirements.
√ Random sample inspection limits are defined using AQL sampling and inspection methodologies. Expanded level of inspections for newly qualified or vendors with historical quality concerns.all major/minor non- conformities along with a recommendation to proceed or not to proceed with vendor qualification process.
 
FOLLOW-UP AUDITS AND COMPLIANCE REVIEWS
√ Ongoing random and unannounced vendor audits.
√ Use of external third party test facilities to ensure product compliance where necessary.
√ Effectively communicate ongoing expectations and defined measures of success.